From ec840dded22d6640c66bd9d3aefbb4df848d7b66 Mon Sep 17 00:00:00 2001
From: "Robin.Mueller" <robin.mueller.m@gmail.com>
Date: Wed, 19 Aug 2020 20:42:40 +0200
Subject: [PATCH] updated requirements

---
 requirements.txt                              |     2 +-
 .../wrapt-1.12.1-py3.8.egg-info/PKG-INFO      |   167 +
 .../wrapt-1.12.1-py3.8.egg-info/SOURCES.txt   |    11 +
 .../dependency_links.txt                      |     1 +
 .../installed-files.txt                       |    13 +
 .../wrapt-1.12.1-py3.8.egg-info/top_level.txt |     1 +
 venv/Lib/site-packages/wrapt/__init__.py      |    16 +
 .../wrapt/_wrappers.cp38-win_amd64.pyd        |   Bin 0 -> 41984 bytes
 venv/Lib/site-packages/wrapt/decorators.py    |   516 +
 venv/Lib/site-packages/wrapt/importer.py      |   230 +
 venv/Lib/site-packages/wrapt/wrappers.py      |   947 ++
 .../yarl-1.5.1.dist-info/INSTALLER            |     1 +
 .../yarl-1.5.1.dist-info/LICENSE              |   201 +
 .../yarl-1.5.1.dist-info/METADATA             |   701 +
 .../site-packages/yarl-1.5.1.dist-info/RECORD |    21 +
 .../yarl-1.5.1.dist-info/REQUESTED            |     0
 .../site-packages/yarl-1.5.1.dist-info/WHEEL  |     5 +
 .../yarl-1.5.1.dist-info/top_level.txt        |     1 +
 venv/Lib/site-packages/yarl/__init__.py       |     5 +
 venv/Lib/site-packages/yarl/__init__.pyi      |   110 +
 venv/Lib/site-packages/yarl/_quoting.py       |    18 +
 venv/Lib/site-packages/yarl/_quoting_c.c      | 12380 ++++++++++++++++
 .../yarl/_quoting_c.cp38-win_amd64.pyd        |   Bin 0 -> 84480 bytes
 venv/Lib/site-packages/yarl/_quoting_c.pyi    |    16 +
 venv/Lib/site-packages/yarl/_quoting_c.pyx    |   394 +
 venv/Lib/site-packages/yarl/_quoting_py.py    |   206 +
 venv/Lib/site-packages/yarl/_url.py           |  1106 ++
 venv/Lib/site-packages/yarl/py.typed          |     1 +
 28 files changed, 17069 insertions(+), 1 deletion(-)
 create mode 100644 venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/PKG-INFO
 create mode 100644 venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/SOURCES.txt
 create mode 100644 venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/dependency_links.txt
 create mode 100644 venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/installed-files.txt
 create mode 100644 venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/top_level.txt
 create mode 100644 venv/Lib/site-packages/wrapt/__init__.py
 create mode 100644 venv/Lib/site-packages/wrapt/_wrappers.cp38-win_amd64.pyd
 create mode 100644 venv/Lib/site-packages/wrapt/decorators.py
 create mode 100644 venv/Lib/site-packages/wrapt/importer.py
 create mode 100644 venv/Lib/site-packages/wrapt/wrappers.py
 create mode 100644 venv/Lib/site-packages/yarl-1.5.1.dist-info/INSTALLER
 create mode 100644 venv/Lib/site-packages/yarl-1.5.1.dist-info/LICENSE
 create mode 100644 venv/Lib/site-packages/yarl-1.5.1.dist-info/METADATA
 create mode 100644 venv/Lib/site-packages/yarl-1.5.1.dist-info/RECORD
 create mode 100644 venv/Lib/site-packages/yarl-1.5.1.dist-info/REQUESTED
 create mode 100644 venv/Lib/site-packages/yarl-1.5.1.dist-info/WHEEL
 create mode 100644 venv/Lib/site-packages/yarl-1.5.1.dist-info/top_level.txt
 create mode 100644 venv/Lib/site-packages/yarl/__init__.py
 create mode 100644 venv/Lib/site-packages/yarl/__init__.pyi
 create mode 100644 venv/Lib/site-packages/yarl/_quoting.py
 create mode 100644 venv/Lib/site-packages/yarl/_quoting_c.c
 create mode 100644 venv/Lib/site-packages/yarl/_quoting_c.cp38-win_amd64.pyd
 create mode 100644 venv/Lib/site-packages/yarl/_quoting_c.pyi
 create mode 100644 venv/Lib/site-packages/yarl/_quoting_c.pyx
 create mode 100644 venv/Lib/site-packages/yarl/_quoting_py.py
 create mode 100644 venv/Lib/site-packages/yarl/_url.py
 create mode 100644 venv/Lib/site-packages/yarl/py.typed

diff --git a/requirements.txt b/requirements.txt
index 5548b57..29f58b5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,4 +25,4 @@ six==1.15.0
 toml==0.10.1
 typing-extensions==3.7.4.2
 wrapt==1.11.2
-yarl==1.5.0
+yarl==1.5.1
diff --git a/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/PKG-INFO b/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/PKG-INFO
new file mode 100644
index 0000000..94a1534
--- /dev/null
+++ b/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/PKG-INFO
@@ -0,0 +1,167 @@
+Metadata-Version: 1.1
+Name: wrapt
+Version: 1.12.1
+Summary: Module for decorators, wrappers and monkey patching.
+Home-page: https://github.com/GrahamDumpleton/wrapt
+Author: Graham Dumpleton
+Author-email: Graham.Dumpleton@gmail.com
+License: BSD
+Description: wrapt
+        =====
+        
+        |Travis| |AppVeyor| |Coveralls| |PyPI|
+        
+        The aim of the **wrapt** module is to provide a transparent object proxy
+        for Python, which can be used as the basis for the construction of function
+        wrappers and decorator functions.
+        
+        The **wrapt** module focuses very much on correctness. It therefore goes
+        way beyond existing mechanisms such as ``functools.wraps()`` to ensure that
+        decorators preserve introspectability, signatures, type checking abilities
+        etc. The decorators that can be constructed using this module will work in
+        far more scenarios than typical decorators and provide more predictable and
+        consistent behaviour.
+        
+        To ensure that the overhead is as minimal as possible, a C extension module
+        is used for performance critical components. An automatic fallback to a
+        pure Python implementation is also provided where a target system does not
+        have a compiler to allow the C extension to be compiled.
+        
+        Documentation
+        -------------
+        
+        For further information on the **wrapt** module see:
+        
+        * http://wrapt.readthedocs.org/
+        
+        Quick Start
+        -----------
+        
+        To implement your decorator you need to first define a wrapper function.
+        This will be called each time a decorated function is called. The wrapper
+        function needs to take four positional arguments:
+        
+        * ``wrapped`` - The wrapped function which in turns needs to be called by your wrapper function.
+        * ``instance`` - The object to which the wrapped function was bound when it was called.
+        * ``args`` - The list of positional arguments supplied when the decorated function was called.
+        * ``kwargs`` - The dictionary of keyword arguments supplied when the decorated function was called.
+        
+        The wrapper function would do whatever it needs to, but would usually in
+        turn call the wrapped function that is passed in via the ``wrapped``
+        argument.
+        
+        The decorator ``@wrapt.decorator`` then needs to be applied to the wrapper
+        function to convert it into a decorator which can in turn be applied to
+        other functions.
+        
+        ::
+        
+            import wrapt
+            
+            @wrapt.decorator
+            def pass_through(wrapped, instance, args, kwargs):
+                return wrapped(*args, **kwargs)
+        
+            @pass_through
+            def function():
+                pass
+        
+        If you wish to implement a decorator which accepts arguments, then wrap the
+        definition of the decorator in a function closure. Any arguments supplied
+        to the outer function when the decorator is applied, will be available to
+        the inner wrapper when the wrapped function is called.
+        
+        ::
+        
+            import wrapt
+        
+            def with_arguments(myarg1, myarg2):
+                @wrapt.decorator
+                def wrapper(wrapped, instance, args, kwargs):
+                    return wrapped(*args, **kwargs)
+                return wrapper
+        
+            @with_arguments(1, 2)
+            def function():
+                pass
+        
+        When applied to a normal function or static method, the wrapper function
+        when called will be passed ``None`` as the ``instance`` argument.
+        
+        When applied to an instance method, the wrapper function when called will
+        be passed the instance of the class the method is being called on as the
+        ``instance`` argument. This will be the case even when the instance method
+        was called explicitly via the class and the instance passed as the first
+        argument. That is, the instance will never be passed as part of ``args``.
+        
+        When applied to a class method, the wrapper function when called will be
+        passed the class type as the ``instance`` argument.
+        
+        When applied to a class, the wrapper function when called will be passed
+        ``None`` as the ``instance`` argument. The ``wrapped`` argument in this
+        case will be the class.
+        
+        The above rules can be summarised with the following example.
+        
+        ::
+        
+            import inspect
+            
+            @wrapt.decorator
+            def universal(wrapped, instance, args, kwargs):
+                if instance is None:
+                    if inspect.isclass(wrapped):
+                        # Decorator was applied to a class.
+                        return wrapped(*args, **kwargs)
+                    else:
+                        # Decorator was applied to a function or staticmethod.
+                        return wrapped(*args, **kwargs)
+                else:
+                    if inspect.isclass(instance):
+                        # Decorator was applied to a classmethod.
+                        return wrapped(*args, **kwargs)
+                    else:
+                        # Decorator was applied to an instancemethod.
+                        return wrapped(*args, **kwargs)
+        
+        Using these checks it is therefore possible to create a universal decorator
+        that can be applied in all situations. It is no longer necessary to create
+        different variants of decorators for normal functions and instance methods,
+        or use additional wrappers to convert a function decorator into one that
+        will work for instance methods.
+        
+        In all cases, the wrapped function passed to the wrapper function is called
+        in the same way, with ``args`` and ``kwargs`` being passed. The
+        ``instance`` argument doesn't need to be used in calling the wrapped
+        function.
+        
+        Repository
+        ----------
+        
+        Full source code for the **wrapt** module, including documentation files
+        and unit tests, can be obtained from github.
+        
+        * https://github.com/GrahamDumpleton/wrapt
+        
+        .. |Travis| image:: https://travis-ci.org/GrahamDumpleton/wrapt.svg?branch=develop
+           :target: https://travis-ci.org/GrahamDumpleton/wrapt
+        .. |Appveyor| image:: https://ci.appveyor.com/api/projects/status/32r7s2skrgm9ubva?svg=true
+           :target: https://ci.appveyor.com/project/GrahamDumpleton/wrapt/branch/develop
+        .. |Coveralls| image:: https://img.shields.io/coveralls/GrahamDumpleton/wrapt/develop.svg
+           :target: https://coveralls.io/github/GrahamDumpleton/wrapt?branch=develop
+        .. |PyPI| image:: https://img.shields.io/pypi/v/wrapt.svg
+           :target: https://pypi.python.org/pypi/wrapt
+        
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: License :: OSI Approved :: BSD License
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.4
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Programming Language :: Python :: 3.7
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
diff --git a/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/SOURCES.txt b/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/SOURCES.txt
new file mode 100644
index 0000000..09a17b5
--- /dev/null
+++ b/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/SOURCES.txt
@@ -0,0 +1,11 @@
+README.rst
+setup.py
+src/wrapt/_wrappers.c
+src/wrapt/__init__.py
+src/wrapt/decorators.py
+src/wrapt/importer.py
+src/wrapt/wrappers.py
+src/wrapt.egg-info/PKG-INFO
+src/wrapt.egg-info/SOURCES.txt
+src/wrapt.egg-info/dependency_links.txt
+src/wrapt.egg-info/top_level.txt
\ No newline at end of file
diff --git a/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/dependency_links.txt b/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/dependency_links.txt
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/dependency_links.txt
@@ -0,0 +1 @@
+
diff --git a/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/installed-files.txt b/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/installed-files.txt
new file mode 100644
index 0000000..d6dcfd9
--- /dev/null
+++ b/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/installed-files.txt
@@ -0,0 +1,13 @@
+..\wrapt\__init__.py
+..\wrapt\__pycache__\__init__.cpython-38.pyc
+..\wrapt\__pycache__\decorators.cpython-38.pyc
+..\wrapt\__pycache__\importer.cpython-38.pyc
+..\wrapt\__pycache__\wrappers.cpython-38.pyc
+..\wrapt\_wrappers.cp38-win_amd64.pyd
+..\wrapt\decorators.py
+..\wrapt\importer.py
+..\wrapt\wrappers.py
+PKG-INFO
+SOURCES.txt
+dependency_links.txt
+top_level.txt
diff --git a/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/top_level.txt b/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/top_level.txt
new file mode 100644
index 0000000..ba11553
--- /dev/null
+++ b/venv/Lib/site-packages/wrapt-1.12.1-py3.8.egg-info/top_level.txt
@@ -0,0 +1 @@
+wrapt
diff --git a/venv/Lib/site-packages/wrapt/__init__.py b/venv/Lib/site-packages/wrapt/__init__.py
new file mode 100644
index 0000000..7be739b
--- /dev/null
+++ b/venv/Lib/site-packages/wrapt/__init__.py
@@ -0,0 +1,16 @@
+__version_info__ = ('1', '12', '1')
+__version__ = '.'.join(__version_info__)
+
+from .wrappers import (ObjectProxy, CallableObjectProxy, FunctionWrapper,
+        BoundFunctionWrapper, WeakFunctionProxy, PartialCallableObjectProxy,
+        resolve_path, apply_patch, wrap_object, wrap_object_attribute,
+        function_wrapper, wrap_function_wrapper, patch_function_wrapper,
+        transient_function_wrapper)
+
+from .decorators import (adapter_factory, AdapterFactory, decorator,
+        synchronized)
+
+from .importer import (register_post_import_hook, when_imported,
+        notify_module_loaded, discover_post_import_hooks)
+
+from inspect import getcallargs
diff --git a/venv/Lib/site-packages/wrapt/_wrappers.cp38-win_amd64.pyd b/venv/Lib/site-packages/wrapt/_wrappers.cp38-win_amd64.pyd
new file mode 100644
index 0000000000000000000000000000000000000000..2c5cb91a68d34ade405ebe0bc1a249232d680fb0
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diff --git a/venv/Lib/site-packages/wrapt/decorators.py b/venv/Lib/site-packages/wrapt/decorators.py
new file mode 100644
index 0000000..506303d
--- /dev/null
+++ b/venv/Lib/site-packages/wrapt/decorators.py
@@ -0,0 +1,516 @@
+"""This module implements decorators for implementing other decorators
+as well as some commonly used decorators.
+
+"""
+
+import sys
+
+PY2 = sys.version_info[0] == 2
+
+if PY2:
+    string_types = basestring,
+
+    def exec_(_code_, _globs_=None, _locs_=None):
+        """Execute code in a namespace."""
+        if _globs_ is None:
+            frame = sys._getframe(1)
+            _globs_ = frame.f_globals
+            if _locs_ is None:
+                _locs_ = frame.f_locals
+            del frame
+        elif _locs_ is None:
+            _locs_ = _globs_
+        exec("""exec _code_ in _globs_, _locs_""")
+
+else:
+    string_types = str,
+
+    import builtins
+
+    exec_ = getattr(builtins, "exec")
+    del builtins
+
+from functools import partial
+from inspect import ismethod, isclass, formatargspec
+from collections import namedtuple
+from threading import Lock, RLock
+
+try:
+    from inspect import signature
+except ImportError:
+    pass
+
+from .wrappers import (FunctionWrapper, BoundFunctionWrapper, ObjectProxy,
+    CallableObjectProxy)
+
+# Adapter wrapper for the wrapped function which will overlay certain
+# properties from the adapter function onto the wrapped function so that
+# functions such as inspect.getargspec(), inspect.getfullargspec(),
+# inspect.signature() and inspect.getsource() return the correct results
+# one would expect.
+
+class _AdapterFunctionCode(CallableObjectProxy):
+
+    def __init__(self, wrapped_code, adapter_code):
+        super(_AdapterFunctionCode, self).__init__(wrapped_code)
+        self._self_adapter_code = adapter_code
+
+    @property
+    def co_argcount(self):
+        return self._self_adapter_code.co_argcount
+
+    @property
+    def co_code(self):
+        return self._self_adapter_code.co_code
+
+    @property
+    def co_flags(self):
+        return self._self_adapter_code.co_flags
+
+    @property
+    def co_kwonlyargcount(self):
+        return self._self_adapter_code.co_kwonlyargcount
+
+    @property
+    def co_varnames(self):
+        return self._self_adapter_code.co_varnames
+
+class _AdapterFunctionSurrogate(CallableObjectProxy):
+
+    def __init__(self, wrapped, adapter):
+        super(_AdapterFunctionSurrogate, self).__init__(wrapped)
+        self._self_adapter = adapter
+
+    @property
+    def __code__(self):
+        return _AdapterFunctionCode(self.__wrapped__.__code__,
+                self._self_adapter.__code__)
+
+    @property
+    def __defaults__(self):
+        return self._self_adapter.__defaults__
+
+    @property
+    def __kwdefaults__(self):
+        return self._self_adapter.__kwdefaults__
+
+    @property
+    def __signature__(self):
+        if 'signature' not in globals():
+            return self._self_adapter.__signature__
+        else:
+            return signature(self._self_adapter)
+
+    if PY2:
+        func_code = __code__
+        func_defaults = __defaults__
+
+class _BoundAdapterWrapper(BoundFunctionWrapper):
+
+    @property
+    def __func__(self):
+        return _AdapterFunctionSurrogate(self.__wrapped__.__func__,
+                self._self_parent._self_adapter)
+
+    @property
+    def __signature__(self):
+        if 'signature' not in globals():
+            return self.__wrapped__.__signature__
+        else:
+            return signature(self._self_parent._self_adapter)
+
+    if PY2:
+        im_func = __func__
+
+class AdapterWrapper(FunctionWrapper):
+
+    __bound_function_wrapper__ = _BoundAdapterWrapper
+
+    def __init__(self, *args, **kwargs):
+        adapter = kwargs.pop('adapter')
+        super(AdapterWrapper, self).__init__(*args, **kwargs)
+        self._self_surrogate = _AdapterFunctionSurrogate(
+                self.__wrapped__, adapter)
+        self._self_adapter = adapter
+
+    @property
+    def __code__(self):
+        return self._self_surrogate.__code__
+
+    @property
+    def __defaults__(self):
+        return self._self_surrogate.__defaults__
+
+    @property
+    def __kwdefaults__(self):
+        return self._self_surrogate.__kwdefaults__
+
+    if PY2:
+        func_code = __code__
+        func_defaults = __defaults__
+
+    @property
+    def __signature__(self):
+        return self._self_surrogate.__signature__
+
+class AdapterFactory(object):
+    def __call__(self, wrapped):
+        raise NotImplementedError()
+
+class DelegatedAdapterFactory(AdapterFactory):
+    def __init__(self, factory):
+        super(DelegatedAdapterFactory, self).__init__()
+        self.factory = factory
+    def __call__(self, wrapped):
+        return self.factory(wrapped)
+
+adapter_factory = DelegatedAdapterFactory
+
+# Decorator for creating other decorators. This decorator and the
+# wrappers which they use are designed to properly preserve any name
+# attributes, function signatures etc, in addition to the wrappers
+# themselves acting like a transparent proxy for the original wrapped
+# function so the wrapper is effectively indistinguishable from the
+# original wrapped function.
+
+def decorator(wrapper=None, enabled=None, adapter=None):
+    # The decorator should be supplied with a single positional argument
+    # which is the wrapper function to be used to implement the
+    # decorator. This may be preceded by a step whereby the keyword
+    # arguments are supplied to customise the behaviour of the
+    # decorator. The 'adapter' argument is used to optionally denote a
+    # separate function which is notionally used by an adapter
+    # decorator. In that case parts of the function '__code__' and
+    # '__defaults__' attributes are used from the adapter function
+    # rather than those of the wrapped function. This allows for the
+    # argument specification from inspect.getargspec() and similar
+    # functions to be overridden with a prototype for a different
+    # function than what was wrapped. The 'enabled' argument provides a
+    # way to enable/disable the use of the decorator. If the type of
+    # 'enabled' is a boolean, then it is evaluated immediately and the
+    # wrapper not even applied if it is False. If not a boolean, it will
+    # be evaluated when the wrapper is called for an unbound wrapper,
+    # and when binding occurs for a bound wrapper. When being evaluated,
+    # if 'enabled' is callable it will be called to obtain the value to
+    # be checked. If False, the wrapper will not be called and instead
+    # the original wrapped function will be called directly instead.
+
+    if wrapper is not None:
+        # Helper function for creating wrapper of the appropriate
+        # time when we need it down below.
+
+        def _build(wrapped, wrapper, enabled=None, adapter=None):
+            if adapter:
+                if isinstance(adapter, AdapterFactory):
+                    adapter = adapter(wrapped)
+
+                if not callable(adapter):
+                    ns = {}
+                    if not isinstance(adapter, string_types):
+                        adapter = formatargspec(*adapter)
+                    exec_('def adapter{}: pass'.format(adapter), ns, ns)
+                    adapter = ns['adapter']
+
+                return AdapterWrapper(wrapped=wrapped, wrapper=wrapper,
+                        enabled=enabled, adapter=adapter)
+
+            return FunctionWrapper(wrapped=wrapped, wrapper=wrapper,
+                    enabled=enabled)
+
+        # The wrapper has been provided so return the final decorator.
+        # The decorator is itself one of our function wrappers so we
+        # can determine when it is applied to functions, instance methods
+        # or class methods. This allows us to bind the instance or class
+        # method so the appropriate self or cls attribute is supplied
+        # when it is finally called.
+
+        def _wrapper(wrapped, instance, args, kwargs):
+            # We first check for the case where the decorator was applied
+            # to a class type.
+            #
+            #     @decorator
+            #     class mydecoratorclass(object):
+            #         def __init__(self, arg=None):
+            #             self.arg = arg
+            #         def __call__(self, wrapped, instance, args, kwargs):
+            #             return wrapped(*args, **kwargs)
+            #
+            #     @mydecoratorclass(arg=1)
+            #     def function():
+            #         pass
+            #
+            # In this case an instance of the class is to be used as the
+            # decorator wrapper function. If args was empty at this point,
+            # then it means that there were optional keyword arguments
+            # supplied to be used when creating an instance of the class
+            # to be used as the wrapper function.
+
+            if instance is None and isclass(wrapped) and not args:
+                # We still need to be passed the target function to be
+                # wrapped as yet, so we need to return a further function
+                # to be able to capture it.
+
+                def _capture(target_wrapped):
+                    # Now have the target function to be wrapped and need
+                    # to create an instance of the class which is to act
+                    # as the decorator wrapper function. Before we do that,
+                    # we need to first check that use of the decorator
+                    # hadn't been disabled by a simple boolean. If it was,
+                    # the target function to be wrapped is returned instead.
+
+                    _enabled = enabled
+                    if type(_enabled) is bool:
+                        if not _enabled:
+                            return target_wrapped
+                        _enabled = None
+
+                    # Now create an instance of the class which is to act
+                    # as the decorator wrapper function. Any arguments had
+                    # to be supplied as keyword only arguments so that is
+                    # all we pass when creating it.
+
+                    target_wrapper = wrapped(**kwargs)
+
+                    # Finally build the wrapper itself and return it.
+
+                    return _build(target_wrapped, target_wrapper,
+                            _enabled, adapter)
+
+                return _capture
+
+            # We should always have the target function to be wrapped at
+            # this point as the first (and only) value in args.
+
+            target_wrapped = args[0]
+
+            # Need to now check that use of the decorator hadn't been
+            # disabled by a simple boolean. If it was, then target
+            # function to be wrapped is returned instead.
+
+            _enabled = enabled
+            if type(_enabled) is bool:
+                if not _enabled:
+                    return target_wrapped
+                _enabled = None
+
+            # We now need to build the wrapper, but there are a couple of
+            # different cases we need to consider.
+
+            if instance is None:
+                if isclass(wrapped):
+                    # In this case the decorator was applied to a class
+                    # type but optional keyword arguments were not supplied
+                    # for initialising an instance of the class to be used
+                    # as the decorator wrapper function.
+                    #
+                    #     @decorator
+                    #     class mydecoratorclass(object):
+                    #         def __init__(self, arg=None):
+                    #             self.arg = arg
+                    #         def __call__(self, wrapped, instance,
+                    #                 args, kwargs):
+                    #             return wrapped(*args, **kwargs)
+                    #
+                    #     @mydecoratorclass
+                    #     def function():
+                    #         pass
+                    #
+                    # We still need to create an instance of the class to
+                    # be used as the decorator wrapper function, but no
+                    # arguments are pass.
+
+                    target_wrapper = wrapped()
+
+                else:
+                    # In this case the decorator was applied to a normal
+                    # function, or possibly a static method of a class.
+                    #
+                    #     @decorator
+                    #     def mydecoratorfuntion(wrapped, instance,
+                    #             args, kwargs):
+                    #         return wrapped(*args, **kwargs)
+                    #
+                    #     @mydecoratorfunction
+                    #     def function():
+                    #         pass
+                    #
+                    # That normal function becomes the decorator wrapper
+                    # function.
+
+                    target_wrapper = wrapper
+
+            else:
+                if isclass(instance):
+                    # In this case the decorator was applied to a class
+                    # method.
+                    #
+                    #     class myclass(object):
+                    #         @decorator
+                    #         @classmethod
+                    #         def decoratorclassmethod(cls, wrapped,
+                    #                 instance, args, kwargs):
+                    #             return wrapped(*args, **kwargs)
+                    #
+                    #     instance = myclass()
+                    #
+                    #     @instance.decoratorclassmethod
+                    #     def function():
+                    #         pass
+                    #
+                    # This one is a bit strange because binding was actually
+                    # performed on the wrapper created by our decorator
+                    # factory. We need to apply that binding to the decorator
+                    # wrapper function which which the decorator factory
+                    # was applied to.
+
+                    target_wrapper = wrapper.__get__(None, instance)
+
+                else:
+                    # In this case the decorator was applied to an instance
+                    # method.
+                    #
+                    #     class myclass(object):
+                    #         @decorator
+                    #         def decoratorclassmethod(self, wrapped,
+                    #                 instance, args, kwargs):
+                    #             return wrapped(*args, **kwargs)
+                    #
+                    #     instance = myclass()
+                    #
+                    #     @instance.decoratorclassmethod
+                    #     def function():
+                    #         pass
+                    #
+                    # This one is a bit strange because binding was actually
+                    # performed on the wrapper created by our decorator
+                    # factory. We need to apply that binding to the decorator
+                    # wrapper function which which the decorator factory
+                    # was applied to.
+
+                    target_wrapper = wrapper.__get__(instance, type(instance))
+
+            # Finally build the wrapper itself and return it.
+
+            return _build(target_wrapped, target_wrapper, _enabled, adapter)
+
+        # We first return our magic function wrapper here so we can
+        # determine in what context the decorator factory was used. In
+        # other words, it is itself a universal decorator. The decorator
+        # function is used as the adapter so that linters see a signature
+        # corresponding to the decorator and not the wrapper it is being
+        # applied to.
+
+        return _build(wrapper, _wrapper, adapter=decorator)
+
+    else:
+        # The wrapper still has not been provided, so we are just
+        # collecting the optional keyword arguments. Return the
+        # decorator again wrapped in a partial using the collected
+        # arguments.
+
+        return partial(decorator, enabled=enabled, adapter=adapter)
+
+# Decorator for implementing thread synchronization. It can be used as a
+# decorator, in which case the synchronization context is determined by
+# what type of function is wrapped, or it can also be used as a context
+# manager, where the user needs to supply the correct synchronization
+# context. It is also possible to supply an object which appears to be a
+# synchronization primitive of some sort, by virtue of having release()
+# and acquire() methods. In that case that will be used directly as the
+# synchronization primitive without creating a separate lock against the
+# derived or supplied context.
+
+def synchronized(wrapped):
+    # Determine if being passed an object which is a synchronization
+    # primitive. We can't check by type for Lock, RLock, Semaphore etc,
+    # as the means of creating them isn't the type. Therefore use the
+    # existence of acquire() and release() methods. This is more
+    # extensible anyway as it allows custom synchronization mechanisms.
+
+    if hasattr(wrapped, 'acquire') and hasattr(wrapped, 'release'):
+        # We remember what the original lock is and then return a new
+        # decorator which accesses and locks it. When returning the new
+        # decorator we wrap it with an object proxy so we can override
+        # the context manager methods in case it is being used to wrap
+        # synchronized statements with a 'with' statement.
+
+        lock = wrapped
+
+        @decorator
+        def _synchronized(wrapped, instance, args, kwargs):
+            # Execute the wrapped function while the original supplied
+            # lock is held.
+
+            with lock:
+                return wrapped(*args, **kwargs)
+
+        class _PartialDecorator(CallableObjectProxy):
+
+            def __enter__(self):
+                lock.acquire()
+                return lock
+
+            def __exit__(self, *args):
+                lock.release()
+
+        return _PartialDecorator(wrapped=_synchronized)
+
+    # Following only apply when the lock is being created automatically
+    # based on the context of what was supplied. In this case we supply
+    # a final decorator, but need to use FunctionWrapper directly as we
+    # want to derive from it to add context manager methods in case it is
+    # being used to wrap synchronized statements with a 'with' statement.
+
+    def _synchronized_lock(context):
+        # Attempt to retrieve the lock for the specific context.
+
+        lock = vars(context).get('_synchronized_lock', None)
+
+        if lock is None:
+            # There is no existing lock defined for the context we
+            # are dealing with so we need to create one. This needs
+            # to be done in a way to guarantee there is only one
+            # created, even if multiple threads try and create it at
+            # the same time. We can't always use the setdefault()
+            # method on the __dict__ for the context. This is the
+            # case where the context is a class, as __dict__ is
+            # actually a dictproxy. What we therefore do is use a
+            # meta lock on this wrapper itself, to control the
+            # creation and assignment of the lock attribute against
+            # the context.
+
+            with synchronized._synchronized_meta_lock:
+                # We need to check again for whether the lock we want
+                # exists in case two threads were trying to create it
+                # at the same time and were competing to create the
+                # meta lock.
+
+                lock = vars(context).get('_synchronized_lock', None)
+
+                if lock is None:
+                    lock = RLock()
+                    setattr(context, '_synchronized_lock', lock)
+
+        return lock
+
+    def _synchronized_wrapper(wrapped, instance, args, kwargs):
+        # Execute the wrapped function while the lock for the
+        # desired context is held. If instance is None then the
+        # wrapped function is used as the context.
+
+        with _synchronized_lock(instance if instance is not None else wrapped):
+            return wrapped(*args, **kwargs)
+
+    class _FinalDecorator(FunctionWrapper):
+
+        def __enter__(self):
+            self._self_lock = _synchronized_lock(self.__wrapped__)
+            self._self_lock.acquire()
+            return self._self_lock
+
+        def __exit__(self, *args):
+            self._self_lock.release()
+
+    return _FinalDecorator(wrapped=wrapped, wrapper=_synchronized_wrapper)
+
+synchronized._synchronized_meta_lock = Lock()
diff --git a/venv/Lib/site-packages/wrapt/importer.py b/venv/Lib/site-packages/wrapt/importer.py
new file mode 100644
index 0000000..4665f38
--- /dev/null
+++ b/venv/Lib/site-packages/wrapt/importer.py
@@ -0,0 +1,230 @@
+"""This module implements a post import hook mechanism styled after what is
+described in PEP-369. Note that it doesn't cope with modules being reloaded.
+
+"""
+
+import sys
+import threading
+
+PY2 = sys.version_info[0] == 2
+
+if PY2:
+    string_types = basestring,
+else:
+    import importlib
+    string_types = str,
+
+from .decorators import synchronized
+
+# The dictionary registering any post import hooks to be triggered once
+# the target module has been imported. Once a module has been imported
+# and the hooks fired, the list of hooks recorded against the target
+# module will be truncacted but the list left in the dictionary. This
+# acts as a flag to indicate that the module had already been imported.
+
+_post_import_hooks = {}
+_post_import_hooks_init = False
+_post_import_hooks_lock = threading.RLock()
+
+# Register a new post import hook for the target module name. This
+# differs from the PEP-369 implementation in that it also allows the
+# hook function to be specified as a string consisting of the name of
+# the callback in the form 'module:function'. This will result in a
+# proxy callback being registered which will defer loading of the
+# specified module containing the callback function until required.
+
+def _create_import_hook_from_string(name):
+    def import_hook(module):
+        module_name, function = name.split(':')
+        attrs = function.split('.')
+        __import__(module_name)
+        callback = sys.modules[module_name]
+        for attr in attrs:
+            callback = getattr(callback, attr)
+        return callback(module)
+    return import_hook
+
+@synchronized(_post_import_hooks_lock)
+def register_post_import_hook(hook, name):
+    # Create a deferred import hook if hook is a string name rather than
+    # a callable function.
+
+    if isinstance(hook, string_types):
+        hook = _create_import_hook_from_string(hook)
+
+    # Automatically install the import hook finder if it has not already
+    # been installed.
+
+    global _post_import_hooks_init
+
+    if not _post_import_hooks_init:
+        _post_import_hooks_init = True
+        sys.meta_path.insert(0, ImportHookFinder())
+
+    # Determine if any prior registration of a post import hook for
+    # the target modules has occurred and act appropriately.
+
+    hooks = _post_import_hooks.get(name, None)
+
+    if hooks is None:
+        # No prior registration of post import hooks for the target
+        # module. We need to check whether the module has already been
+        # imported. If it has we fire the hook immediately and add an
+        # empty list to the registry to indicate that the module has
+        # already been imported and hooks have fired. Otherwise add
+        # the post import hook to the registry.
+
+        module = sys.modules.get(name, None)
+
+        if module is not None:
+            _post_import_hooks[name] = []
+            hook(module)
+
+        else:
+            _post_import_hooks[name] = [hook]
+
+    elif hooks == []:
+        # A prior registration of port import hooks for the target
+        # module was done and the hooks already fired. Fire the hook
+        # immediately.
+
+        module = sys.modules[name]
+        hook(module)
+
+    else:
+        # A prior registration of port import hooks for the target
+        # module was done but the module has not yet been imported.
+
+        _post_import_hooks[name].append(hook)
+
+# Register post import hooks defined as package entry points.
+
+def _create_import_hook_from_entrypoint(entrypoint):
+    def import_hook(module):
+        __import__(entrypoint.module_name)
+        callback = sys.modules[entrypoint.module_name]
+        for attr in entrypoint.attrs:
+            callback = getattr(callback, attr)
+        return callback(module)
+    return import_hook
+
+def discover_post_import_hooks(group):
+    try:
+        import pkg_resources
+    except ImportError:
+        return
+
+    for entrypoint in pkg_resources.iter_entry_points(group=group):
+        callback = _create_import_hook_from_entrypoint(entrypoint)
+        register_post_import_hook(callback, entrypoint.name)
+
+# Indicate that a module has been loaded. Any post import hooks which
+# were registered against the target module will be invoked. If an
+# exception is raised in any of the post import hooks, that will cause
+# the import of the target module to fail.
+
+@synchronized(_post_import_hooks_lock)
+def notify_module_loaded(module):
+    name = getattr(module, '__name__', None)
+    hooks = _post_import_hooks.get(name, None)
+
+    if hooks:
+        _post_import_hooks[name] = []
+
+        for hook in hooks:
+            hook(module)
+
+# A custom module import finder. This intercepts attempts to import
+# modules and watches out for attempts to import target modules of
+# interest. When a module of interest is imported, then any post import
+# hooks which are registered will be invoked.
+
+class _ImportHookLoader:
+
+    def load_module(self, fullname):
+        module = sys.modules[fullname]
+        notify_module_loaded(module)
+
+        return module
+
+class _ImportHookChainedLoader:
+
+    def __init__(self, loader):
+        self.loader = loader
+
+    def load_module(self, fullname):
+        module = self.loader.load_module(fullname)
+        notify_module_loaded(module)
+
+        return module
+
+class ImportHookFinder:
+
+    def __init__(self):
+        self.in_progress = {}
+
+    @synchronized(_post_import_hooks_lock)
+    def find_module(self, fullname, path=None):
+        # If the module being imported is not one we have registered
+        # post import hooks for, we can return immediately. We will
+        # take no further part in the importing of this module.
+
+        if not fullname in _post_import_hooks:
+            return None
+
+        # When we are interested in a specific module, we will call back
+        # into the import system a second time to defer to the import
+        # finder that is supposed to handle the importing of the module.
+        # We set an in progress flag for the target module so that on
+        # the second time through we don't trigger another call back
+        # into the import system and cause a infinite loop.
+
+        if fullname in self.in_progress:
+            return None
+
+        self.in_progress[fullname] = True
+
+        # Now call back into the import system again.
+
+        try:
+            if PY2:
+                # For Python 2 we don't have much choice but to
+                # call back in to __import__(). This will
+                # actually cause the module to be imported. If no
+                # module could be found then ImportError will be
+                # raised. Otherwise we return a loader which
+                # returns the already loaded module and invokes
+                # the post import hooks.
+
+                __import__(fullname)
+
+                return _ImportHookLoader()
+
+            else:
+                # For Python 3 we need to use find_spec().loader
+                # from the importlib.util module. It doesn't actually
+                # import the target module and only finds the
+                # loader. If a loader is found, we need to return
+                # our own loader which will then in turn call the
+                # real loader to import the module and invoke the
+                # post import hooks.
+                try:
+                    import importlib.util
+                    loader = importlib.util.find_spec(fullname).loader
+                except (ImportError, AttributeError):
+                    loader = importlib.find_loader(fullname, path)
+                if loader:
+                    return _ImportHookChainedLoader(loader)
+
+
+        finally:
+            del self.in_progress[fullname]
+
+# Decorator for marking that a function should be called as a post
+# import hook when the target module is imported.
+
+def when_imported(name):
+    def register(hook):
+        register_post_import_hook(hook, name)
+        return hook
+    return register
diff --git a/venv/Lib/site-packages/wrapt/wrappers.py b/venv/Lib/site-packages/wrapt/wrappers.py
new file mode 100644
index 0000000..18cf5e0
--- /dev/null
+++ b/venv/Lib/site-packages/wrapt/wrappers.py
@@ -0,0 +1,947 @@
+import os
+import sys
+import functools
+import operator
+import weakref
+import inspect
+
+PY2 = sys.version_info[0] == 2
+
+if PY2:
+    string_types = basestring,
+else:
+    string_types = str,
+
+def with_metaclass(meta, *bases):
+    """Create a base class with a metaclass."""
+    return meta("NewBase", bases, {})
+
+class _ObjectProxyMethods(object):
+
+    # We use properties to override the values of __module__ and
+    # __doc__. If we add these in ObjectProxy, the derived class
+    # __dict__ will still be setup to have string variants of these
+    # attributes and the rules of descriptors means that they appear to
+    # take precedence over the properties in the base class. To avoid
+    # that, we copy the properties into the derived class type itself
+    # via a meta class. In that way the properties will always take
+    # precedence.
+
+    @property
+    def __module__(self):
+        return self.__wrapped__.__module__
+
+    @__module__.setter
+    def __module__(self, value):
+        self.__wrapped__.__module__ = value
+
+    @property
+    def __doc__(self):
+        return self.__wrapped__.__doc__
+
+    @__doc__.setter
+    def __doc__(self, value):
+        self.__wrapped__.__doc__ = value
+
+    # We similar use a property for __dict__. We need __dict__ to be
+    # explicit to ensure that vars() works as expected.
+
+    @property
+    def __dict__(self):
+        return self.__wrapped__.__dict__
+
+    # Need to also propagate the special __weakref__ attribute for case
+    # where decorating classes which will define this. If do not define
+    # it and use a function like inspect.getmembers() on a decorator
+    # class it will fail. This can't be in the derived classes.
+
+    @property
+    def __weakref__(self):
+        return self.__wrapped__.__weakref__
+
+class _ObjectProxyMetaType(type):
+    def __new__(cls, name, bases, dictionary):
+        # Copy our special properties into the class so that they
+        # always take precedence over attributes of the same name added
+        # during construction of a derived class. This is to save
+        # duplicating the implementation for them in all derived classes.
+
+        dictionary.update(vars(_ObjectProxyMethods))
+
+        return type.__new__(cls, name, bases, dictionary)
+
+class ObjectProxy(with_metaclass(_ObjectProxyMetaType)):
+
+    __slots__ = '__wrapped__'
+
+    def __init__(self, wrapped):
+        object.__setattr__(self, '__wrapped__', wrapped)
+
+        # Python 3.2+ has the __qualname__ attribute, but it does not
+        # allow it to be overridden using a property and it must instead
+        # be an actual string object instead.
+
+        try:
+            object.__setattr__(self, '__qualname__', wrapped.__qualname__)
+        except AttributeError:
+            pass
+
+    @property
+    def __name__(self):
+        return self.__wrapped__.__name__
+
+    @__name__.setter
+    def __name__(self, value):
+        self.__wrapped__.__name__ = value
+
+    @property
+    def __class__(self):
+        return self.__wrapped__.__class__
+
+    @__class__.setter
+    def __class__(self, value):
+        self.__wrapped__.__class__ = value
+
+    @property
+    def __annotations__(self):
+        return self.__wrapped__.__annotations__
+
+    @__annotations__.setter
+    def __annotations__(self, value):
+        self.__wrapped__.__annotations__ = value
+
+    def __dir__(self):
+        return dir(self.__wrapped__)
+
+    def __str__(self):
+        return str(self.__wrapped__)
+
+    if not PY2:
+        def __bytes__(self):
+            return bytes(self.__wrapped__)
+
+    def __repr__(self):
+        return '<{} at 0x{:x} for {} at 0x{:x}>'.format(
+                type(self).__name__, id(self),
+                type(self.__wrapped__).__name__,
+                id(self.__wrapped__))
+
+    def __reversed__(self):
+        return reversed(self.__wrapped__)
+
+    if not PY2:
+        def __round__(self):
+            return round(self.__wrapped__)
+
+    if sys.hexversion >= 0x03070000:
+        def __mro_entries__(self, bases):
+            return (self.__wrapped__,)
+
+    def __lt__(self, other):
+        return self.__wrapped__ < other
+
+    def __le__(self, other):
+        return self.__wrapped__ <= other
+
+    def __eq__(self, other):
+        return self.__wrapped__ == other
+
+    def __ne__(self, other):
+        return self.__wrapped__ != other
+
+    def __gt__(self, other):
+        return self.__wrapped__ > other
+
+    def __ge__(self, other):
+        return self.__wrapped__ >= other
+
+    def __hash__(self):
+        return hash(self.__wrapped__)
+
+    def __nonzero__(self):
+        return bool(self.__wrapped__)
+
+    def __bool__(self):
+        return bool(self.__wrapped__)
+
+    def __setattr__(self, name, value):
+        if name.startswith('_self_'):
+            object.__setattr__(self, name, value)
+
+        elif name == '__wrapped__':
+            object.__setattr__(self, name, value)
+            try:
+                object.__delattr__(self, '__qualname__')
+            except AttributeError:
+                pass
+            try:
+                object.__setattr__(self, '__qualname__', value.__qualname__)
+            except AttributeError:
+                pass
+
+        elif name == '__qualname__':
+            setattr(self.__wrapped__, name, value)
+            object.__setattr__(self, name, value)
+
+        elif hasattr(type(self), name):
+            object.__setattr__(self, name, value)
+
+        else:
+            setattr(self.__wrapped__, name, value)
+
+    def __getattr__(self, name):
+        # If we are being to lookup '__wrapped__' then the
+        # '__init__()' method cannot have been called.
+
+        if name == '__wrapped__':
+            raise ValueError('wrapper has not been initialised')
+
+        return getattr(self.__wrapped__, name)
+
+    def __delattr__(self, name):
+        if name.startswith('_self_'):
+            object.__delattr__(self, name)
+
+        elif name == '__wrapped__':
+            raise TypeError('__wrapped__ must be an object')
+
+        elif name == '__qualname__':
+            object.__delattr__(self, name)
+            delattr(self.__wrapped__, name)
+
+        elif hasattr(type(self), name):
+            object.__delattr__(self, name)
+
+        else:
+            delattr(self.__wrapped__, name)
+
+    def __add__(self, other):
+        return self.__wrapped__ + other
+
+    def __sub__(self, other):
+        return self.__wrapped__ - other
+
+    def __mul__(self, other):
+        return self.__wrapped__ * other
+
+    def __div__(self, other):
+        return operator.div(self.__wrapped__, other)
+
+    def __truediv__(self, other):
+        return operator.truediv(self.__wrapped__, other)
+
+    def __floordiv__(self, other):
+        return self.__wrapped__ // other
+
+    def __mod__(self, other):
+        return self.__wrapped__ % other
+
+    def __divmod__(self, other):
+        return divmod(self.__wrapped__, other)
+
+    def __pow__(self, other, *args):
+        return pow(self.__wrapped__, other, *args)
+
+    def __lshift__(self, other):
+        return self.__wrapped__ << other
+
+    def __rshift__(self, other):
+        return self.__wrapped__ >> other
+
+    def __and__(self, other):
+        return self.__wrapped__ & other
+
+    def __xor__(self, other):
+        return self.__wrapped__ ^ other
+
+    def __or__(self, other):
+        return self.__wrapped__ | other
+
+    def __radd__(self, other):
+        return other + self.__wrapped__
+
+    def __rsub__(self, other):
+        return other - self.__wrapped__
+
+    def __rmul__(self, other):
+        return other * self.__wrapped__
+
+    def __rdiv__(self, other):
+        return operator.div(other, self.__wrapped__)
+
+    def __rtruediv__(self, other):
+        return operator.truediv(other, self.__wrapped__)
+
+    def __rfloordiv__(self, other):
+        return other // self.__wrapped__
+
+    def __rmod__(self, other):
+        return other % self.__wrapped__
+
+    def __rdivmod__(self, other):
+        return divmod(other, self.__wrapped__)
+
+    def __rpow__(self, other, *args):
+        return pow(other, self.__wrapped__, *args)
+
+    def __rlshift__(self, other):
+        return other << self.__wrapped__
+
+    def __rrshift__(self, other):
+        return other >> self.__wrapped__
+
+    def __rand__(self, other):
+        return other & self.__wrapped__
+
+    def __rxor__(self, other):
+        return other ^ self.__wrapped__
+
+    def __ror__(self, other):
+        return other | self.__wrapped__
+
+    def __iadd__(self, other):
+        self.__wrapped__ += other
+        return self
+
+    def __isub__(self, other):
+        self.__wrapped__ -= other
+        return self
+
+    def __imul__(self, other):
+        self.__wrapped__ *= other
+        return self
+
+    def __idiv__(self, other):
+        self.__wrapped__ = operator.idiv(self.__wrapped__, other)
+        return self
+
+    def __itruediv__(self, other):
+        self.__wrapped__ = operator.itruediv(self.__wrapped__, other)
+        return self
+
+    def __ifloordiv__(self, other):
+        self.__wrapped__ //= other
+        return self
+
+    def __imod__(self, other):
+        self.__wrapped__ %= other
+        return self
+
+    def __ipow__(self, other):
+        self.__wrapped__ **= other
+        return self
+
+    def __ilshift__(self, other):
+        self.__wrapped__ <<= other
+        return self
+
+    def __irshift__(self, other):
+        self.__wrapped__ >>= other
+        return self
+
+    def __iand__(self, other):
+        self.__wrapped__ &= other
+        return self
+
+    def __ixor__(self, other):
+        self.__wrapped__ ^= other
+        return self
+
+    def __ior__(self, other):
+        self.__wrapped__ |= other
+        return self
+
+    def __neg__(self):
+        return -self.__wrapped__
+
+    def __pos__(self):
+        return +self.__wrapped__
+
+    def __abs__(self):
+        return abs(self.__wrapped__)
+
+    def __invert__(self):
+        return ~self.__wrapped__
+
+    def __int__(self):
+        return int(self.__wrapped__)
+
+    def __long__(self):
+        return long(self.__wrapped__)
+
+    def __float__(self):
+        return float(self.__wrapped__)
+
+    def __complex__(self):
+        return complex(self.__wrapped__)
+
+    def __oct__(self):
+        return oct(self.__wrapped__)
+
+    def __hex__(self):
+        return hex(self.__wrapped__)
+
+    def __index__(self):
+        return operator.index(self.__wrapped__)
+
+    def __len__(self):
+        return len(self.__wrapped__)
+
+    def __contains__(self, value):
+        return value in self.__wrapped__
+
+    def __getitem__(self, key):
+        return self.__wrapped__[key]
+
+    def __setitem__(self, key, value):
+        self.__wrapped__[key] = value
+
+    def __delitem__(self, key):
+        del self.__wrapped__[key]
+
+    def __getslice__(self, i, j):
+        return self.__wrapped__[i:j]
+
+    def __setslice__(self, i, j, value):
+        self.__wrapped__[i:j] = value
+
+    def __delslice__(self, i, j):
+        del self.__wrapped__[i:j]
+
+    def __enter__(self):
+        return self.__wrapped__.__enter__()
+
+    def __exit__(self, *args, **kwargs):
+        return self.__wrapped__.__exit__(*args, **kwargs)
+
+    def __iter__(self):
+        return iter(self.__wrapped__)
+
+    def __copy__(self):
+        raise NotImplementedError('object proxy must define __copy__()')
+
+    def __deepcopy__(self, memo):
+        raise NotImplementedError('object proxy must define __deepcopy__()')
+
+    def __reduce__(self):
+        raise NotImplementedError(
+                'object proxy must define __reduce_ex__()')
+
+    def __reduce_ex__(self, protocol):
+        raise NotImplementedError(
+                'object proxy must define __reduce_ex__()')
+
+class CallableObjectProxy(ObjectProxy):
+
+    def __call__(self, *args, **kwargs):
+        return self.__wrapped__(*args, **kwargs)
+
+class PartialCallableObjectProxy(ObjectProxy):
+
+    def __init__(self, *args, **kwargs):
+        if len(args) < 1:
+            raise TypeError('partial type takes at least one argument')
+
+        wrapped, args = args[0], args[1:]
+
+        if not callable(wrapped):
+            raise TypeError('the first argument must be callable')
+
+        super(PartialCallableObjectProxy, self).__init__(wrapped)
+
+        self._self_args = args
+        self._self_kwargs = kwargs
+
+    def __call__(self, *args, **kwargs):
+        _args = self._self_args + args
+
+        _kwargs = dict(self._self_kwargs)
+        _kwargs.update(kwargs)
+
+        return self.__wrapped__(*_args, **_kwargs)
+
+class _FunctionWrapperBase(ObjectProxy):
+
+    __slots__ = ('_self_instance', '_self_wrapper', '_self_enabled',
+            '_self_binding', '_self_parent')
+
+    def __init__(self, wrapped, instance, wrapper, enabled=None,
+            binding='function', parent=None):
+
+        super(_FunctionWrapperBase, self).__init__(wrapped)
+
+        object.__setattr__(self, '_self_instance', instance)
+        object.__setattr__(self, '_self_wrapper', wrapper)
+        object.__setattr__(self, '_self_enabled', enabled)
+        object.__setattr__(self, '_self_binding', binding)
+        object.__setattr__(self, '_self_parent', parent)
+
+    def __get__(self, instance, owner):
+        # This method is actually doing double duty for both unbound and
+        # bound derived wrapper classes. It should possibly be broken up
+        # and the distinct functionality moved into the derived classes.
+        # Can't do that straight away due to some legacy code which is
+        # relying on it being here in this base class.
+        #
+        # The distinguishing attribute which determines whether we are
+        # being called in an unbound or bound wrapper is the parent
+        # attribute. If binding has never occurred, then the parent will
+        # be None.
+        #
+        # First therefore, is if we are called in an unbound wrapper. In
+        # this case we perform the binding.
+        #
+        # We have one special case to worry about here. This is where we
+        # are decorating a nested class. In this case the wrapped class
+        # would not have a __get__() method to call. In that case we
+        # simply return self.
+        #
+        # Note that we otherwise still do binding even if instance is
+        # None and accessing an unbound instance method from a class.
+        # This is because we need to be able to later detect that
+        # specific case as we will need to extract the instance from the
+        # first argument of those passed in.
+
+        if self._self_parent is None:
+            if not inspect.isclass(self.__wrapped__):
+                descriptor = self.__wrapped__.__get__(instance, owner)
+
+                return self.__bound_function_wrapper__(descriptor, instance,
+                        self._self_wrapper, self._self_enabled,
+                        self._self_binding, self)
+
+            return self
+
+        # Now we have the case of binding occurring a second time on what
+        # was already a bound function. In this case we would usually
+        # return ourselves again. This mirrors what Python does.
+        #
+        # The special case this time is where we were originally bound
+        # with an instance of None and we were likely an instance
+        # method. In that case we rebind against the original wrapped
+        # function from the parent again.
+
+        if self._self_instance is None and self._self_binding == 'function':
+            descriptor = self._self_parent.__wrapped__.__get__(
+                    instance, owner)
+
+            return self._self_parent.__bound_function_wrapper__(
+                    descriptor, instance, self._self_wrapper,
+                    self._self_enabled, self._self_binding,
+                    self._self_parent)
+
+        return self
+
+    def __call__(self, *args, **kwargs):
+        # If enabled has been specified, then evaluate it at this point
+        # and if the wrapper is not to be executed, then simply return
+        # the bound function rather than a bound wrapper for the bound
+        # function. When evaluating enabled, if it is callable we call
+        # it, otherwise we evaluate it as a boolean.
+
+        if self._self_enabled is not None:
+            if callable(self._self_enabled):
+                if not self._self_enabled():
+                    return self.__wrapped__(*args, **kwargs)
+            elif not self._self_enabled:
+                return self.__wrapped__(*args, **kwargs)
+
+        # This can occur where initial function wrapper was applied to
+        # a function that was already bound to an instance. In that case
+        # we want to extract the instance from the function and use it.
+
+        if self._self_binding == 'function':
+            if self._self_instance is None:
+                instance = getattr(self.__wrapped__, '__self__', None)
+                if instance is not None:
+                    return self._self_wrapper(self.__wrapped__, instance,
+                            args, kwargs)
+
+        # This is generally invoked when the wrapped function is being
+        # called as a normal function and is not bound to a class as an
+        # instance method. This is also invoked in the case where the
+        # wrapped function was a method, but this wrapper was in turn
+        # wrapped using the staticmethod decorator.
+
+        return self._self_wrapper(self.__wrapped__, self._self_instance,
+                args, kwargs)
+
+class BoundFunctionWrapper(_FunctionWrapperBase):
+
+    def __call__(self, *args, **kwargs):
+        # If enabled has been specified, then evaluate it at this point
+        # and if the wrapper is not to be executed, then simply return
+        # the bound function rather than a bound wrapper for the bound
+        # function. When evaluating enabled, if it is callable we call
+        # it, otherwise we evaluate it as a boolean.
+
+        if self._self_enabled is not None:
+            if callable(self._self_enabled):
+                if not self._self_enabled():
+                    return self.__wrapped__(*args, **kwargs)
+            elif not self._self_enabled:
+                return self.__wrapped__(*args, **kwargs)
+
+        # We need to do things different depending on whether we are
+        # likely wrapping an instance method vs a static method or class
+        # method.
+
+        if self._self_binding == 'function':
+            if self._self_instance is None:
+                # This situation can occur where someone is calling the
+                # instancemethod via the class type and passing the instance
+                # as the first argument. We need to shift the args before
+                # making the call to the wrapper and effectively bind the
+                # instance to the wrapped function using a partial so the
+                # wrapper doesn't see anything as being different.
+
+                if not args:
+                    raise TypeError('missing 1 required positional argument')
+
+                instance, args = args[0], args[1:]
+                wrapped = PartialCallableObjectProxy(self.__wrapped__, instance)
+                return self._self_wrapper(wrapped, instance, args, kwargs)
+
+            return self._self_wrapper(self.__wrapped__, self._self_instance,
+                    args, kwargs)
+
+        else:
+            # As in this case we would be dealing with a classmethod or
+            # staticmethod, then _self_instance will only tell us whether
+            # when calling the classmethod or staticmethod they did it via an
+            # instance of the class it is bound to and not the case where
+            # done by the class type itself. We thus ignore _self_instance
+            # and use the __self__ attribute of the bound function instead.
+            # For a classmethod, this means instance will be the class type
+            # and for a staticmethod it will be None. This is probably the
+            # more useful thing we can pass through even though we loose
+            # knowledge of whether they were called on the instance vs the
+            # class type, as it reflects what they have available in the
+            # decoratored function.
+
+            instance = getattr(self.__wrapped__, '__self__', None)
+
+            return self._self_wrapper(self.__wrapped__, instance, args,
+                    kwargs)
+
+class FunctionWrapper(_FunctionWrapperBase):
+
+    __bound_function_wrapper__ = BoundFunctionWrapper
+
+    def __init__(self, wrapped, wrapper, enabled=None):
+        # What it is we are wrapping here could be anything. We need to
+        # try and detect specific cases though. In particular, we need
+        # to detect when we are given something that is a method of a
+        # class. Further, we need to know when it is likely an instance
+        # method, as opposed to a class or static method. This can
+        # become problematic though as there isn't strictly a fool proof
+        # method of knowing.
+        #
+        # The situations we could encounter when wrapping a method are:
+        #
+        # 1. The wrapper is being applied as part of a decorator which
+        # is a part of the class definition. In this case what we are
+        # given is the raw unbound function, classmethod or staticmethod
+        # wrapper objects.
+        #
+        # The problem here is that we will not know we are being applied
+        # in the context of the class being set up. This becomes
+        # important later for the case of an instance method, because in
+        # that case we just see it as a raw function and can't
+        # distinguish it from wrapping a normal function outside of
+        # a class context.
+        #
+        # 2. The wrapper is being applied when performing monkey
+        # patching of the class type afterwards and the method to be
+        # wrapped was retrieved direct from the __dict__ of the class
+        # type. This is effectively the same as (1) above.
+        #
+        # 3. The wrapper is being applied when performing monkey
+        # patching of the class type afterwards and the method to be
+        # wrapped was retrieved from the class type. In this case
+        # binding will have been performed where the instance against
+        # which the method is bound will be None at that point.
+        #
+        # This case is a problem because we can no longer tell if the
+        # method was a static method, plus if using Python3, we cannot
+        # tell if it was an instance method as the concept of an
+        # unnbound method no longer exists.
+        #
+        # 4. The wrapper is being applied when performing monkey
+        # patching of an instance of a class. In this case binding will
+        # have been perfomed where the instance was not None.
+        #
+        # This case is a problem because we can no longer tell if the
+        # method was a static method.
+        #
+        # Overall, the best we can do is look at the original type of the
+        # object which was wrapped prior to any binding being done and
+        # see if it is an instance of classmethod or staticmethod. In
+        # the case where other decorators are between us and them, if
+        # they do not propagate the __class__  attribute so that the
+        # isinstance() checks works, then likely this will do the wrong
+        # thing where classmethod and staticmethod are used.
+        #
+        # Since it is likely to be very rare that anyone even puts
+        # decorators around classmethod and staticmethod, likelihood of
+        # that being an issue is very small, so we accept it and suggest
+        # that those other decorators be fixed. It is also only an issue
+        # if a decorator wants to actually do things with the arguments.
+        #
+        # As to not being able to identify static methods properly, we
+        # just hope that that isn't something people are going to want
+        # to wrap, or if they do suggest they do it the correct way by
+        # ensuring that it is decorated in the class definition itself,
+        # or patch it in the __dict__ of the class type.
+        #
+        # So to get the best outcome we can, whenever we aren't sure what
+        # it is, we label it as a 'function'. If it was already bound and
+        # that is rebound later, we assume that it will be an instance
+        # method and try an cope with the possibility that the 'self'
+        # argument it being passed as an explicit argument and shuffle
+        # the arguments around to extract 'self' for use as the instance.
+
+        if isinstance(wrapped, classmethod):
+            binding = 'classmethod'
+
+        elif isinstance(wrapped, staticmethod):
+            binding = 'staticmethod'
+
+        elif hasattr(wrapped, '__self__'):
+            if inspect.isclass(wrapped.__self__):
+                binding = 'classmethod'
+            else:
+                binding = 'function'
+
+        else:
+            binding = 'function'
+
+        super(FunctionWrapper, self).__init__(wrapped, None, wrapper,
+                enabled, binding)
+
+try:
+    if not os.environ.get('WRAPT_DISABLE_EXTENSIONS'):
+        from ._wrappers import (ObjectProxy, CallableObjectProxy,
+            PartialCallableObjectProxy, FunctionWrapper,
+            BoundFunctionWrapper, _FunctionWrapperBase)
+except ImportError:
+    pass
+
+# Helper functions for applying wrappers to existing functions.
+
+def resolve_path(module, name):
+    if isinstance(module, string_types):
+        __import__(module)
+        module = sys.modules[module]
+
+    parent = module
+
+    path = name.split('.')
+    attribute = path[0]
+
+    # We can't just always use getattr() because in doing
+    # that on a class it will cause binding to occur which
+    # will complicate things later and cause some things not
+    # to work. For the case of a class we therefore access
+    # the __dict__ directly. To cope though with the wrong
+    # class being given to us, or a method being moved into
+    # a base class, we need to walk the class hierarchy to
+    # work out exactly which __dict__ the method was defined
+    # in, as accessing it from __dict__ will fail if it was
+    # not actually on the class given. Fallback to using
+    # getattr() if we can't find it. If it truly doesn't
+    # exist, then that will fail.
+
+    def lookup_attribute(parent, attribute):
+        if inspect.isclass(parent):
+            for cls in inspect.getmro(parent):
+                if attribute in vars(cls):
+                    return vars(cls)[attribute]
+            else:
+                return getattr(parent, attribute)
+        else:
+            return getattr(parent, attribute)
+
+    original = lookup_attribute(parent, attribute)
+
+    for attribute in path[1:]:
+        parent = original
+        original = lookup_attribute(parent, attribute)
+
+    return (parent, attribute, original)
+
+def apply_patch(parent, attribute, replacement):
+    setattr(parent, attribute, replacement)
+
+def wrap_object(module, name, factory, args=(), kwargs={}):
+    (parent, attribute, original) = resolve_path(module, name)
+    wrapper = factory(original, *args, **kwargs)
+    apply_patch(parent, attribute, wrapper)
+    return wrapper
+
+# Function for applying a proxy object to an attribute of a class
+# instance. The wrapper works by defining an attribute of the same name
+# on the class which is a descriptor and which intercepts access to the
+# instance attribute. Note that this cannot be used on attributes which
+# are themselves defined by a property object.
+
+class AttributeWrapper(object):
+
+    def __init__(self, attribute, factory, args, kwargs):
+        self.attribute = attribute
+        self.factory = factory
+        self.args = args
+        self.kwargs = kwargs
+
+    def __get__(self, instance, owner):
+        value = instance.__dict__[self.attribute]
+        return self.factory(value, *self.args, **self.kwargs)
+
+    def __set__(self, instance, value):
+        instance.__dict__[self.attribute] = value
+
+    def __delete__(self, instance):
+        del instance.__dict__[self.attribute]
+
+def wrap_object_attribute(module, name, factory, args=(), kwargs={}):
+    path, attribute = name.rsplit('.', 1)
+    parent = resolve_path(module, path)[2]
+    wrapper = AttributeWrapper(attribute, factory, args, kwargs)
+    apply_patch(parent, attribute, wrapper)
+    return wrapper
+
+# Functions for creating a simple decorator using a FunctionWrapper,
+# plus short cut functions for applying wrappers to functions. These are
+# for use when doing monkey patching. For a more featured way of
+# creating decorators see the decorator decorator instead.
+
+def function_wrapper(wrapper):
+    def _wrapper(wrapped, instance, args, kwargs):
+        target_wrapped = args[0]
+        if instance is None:
+            target_wrapper = wrapper
+        elif inspect.isclass(instance):
+            target_wrapper = wrapper.__get__(None, instance)
+        else:
+            target_wrapper = wrapper.__get__(instance, type(instance))
+        return FunctionWrapper(target_wrapped, target_wrapper)
+    return FunctionWrapper(wrapper, _wrapper)
+
+def wrap_function_wrapper(module, name, wrapper):
+    return wrap_object(module, name, FunctionWrapper, (wrapper,))
+
+def patch_function_wrapper(module, name):
+    def _wrapper(wrapper):
+        return wrap_object(module, name, FunctionWrapper, (wrapper,))
+    return _wrapper
+
+def transient_function_wrapper(module, name):
+    def _decorator(wrapper):
+        def _wrapper(wrapped, instance, args, kwargs):
+            target_wrapped = args[0]
+            if instance is None:
+                target_wrapper = wrapper
+            elif inspect.isclass(instance):
+                target_wrapper = wrapper.__get__(None, instance)
+            else:
+                target_wrapper = wrapper.__get__(instance, type(instance))
+            def _execute(wrapped, instance, args, kwargs):
+                (parent, attribute, original) = resolve_path(module, name)
+                replacement = FunctionWrapper(original, target_wrapper)
+                setattr(parent, attribute, replacement)
+                try:
+                    return wrapped(*args, **kwargs)
+                finally:
+                    setattr(parent, attribute, original)
+            return FunctionWrapper(target_wrapped, _execute)
+        return FunctionWrapper(wrapper, _wrapper)
+    return _decorator
+
+# A weak function proxy. This will work on instance methods, class
+# methods, static methods and regular functions. Special treatment is
+# needed for the method types because the bound method is effectively a
+# transient object and applying a weak reference to one will immediately
+# result in it being destroyed and the weakref callback called. The weak
+# reference is therefore applied to the instance the method is bound to
+# and the original function. The function is then rebound at the point
+# of a call via the weak function proxy.
+
+def _weak_function_proxy_callback(ref, proxy, callback):
+    if proxy._self_expired:
+        return
+
+    proxy._self_expired = True
+
+    # This could raise an exception. We let it propagate back and let
+    # the weakref.proxy() deal with it, at which point it generally
+    # prints out a short error message direct to stderr and keeps going.
+
+    if callback is not None:
+        callback(proxy)
+
+class WeakFunctionProxy(ObjectProxy):
+
+    __slots__ = ('_self_expired', '_self_instance')
+
+    def __init__(self, wrapped, callback=None):
+        # We need to determine if the wrapped function is actually a
+        # bound method. In the case of a bound method, we need to keep a
+        # reference to the original unbound function and the instance.
+        # This is necessary because if we hold a reference to the bound
+        # function, it will be the only reference and given it is a
+        # temporary object, it will almost immediately expire and
+        # the weakref callback triggered. So what is done is that we
+        # hold a reference to the instance and unbound function and
+        # when called bind the function to the instance once again and
+        # then call it. Note that we avoid using a nested function for
+        # the callback here so as not to cause any odd reference cycles.
+
+        _callback = callback and functools.partial(
+                _weak_function_proxy_callback, proxy=self,
+                callback=callback)
+
+        self._self_expired = False
+
+        if isinstance(wrapped, _FunctionWrapperBase):
+            self._self_instance = weakref.ref(wrapped._self_instance,
+                    _callback)
+
+            if wrapped._self_parent is not None:
+                super(WeakFunctionProxy, self).__init__(
+                        weakref.proxy(wrapped._self_parent, _callback))
+
+            else:
+                super(WeakFunctionProxy, self).__init__(
+                        weakref.proxy(wrapped, _callback))
+
+            return
+
+        try:
+            self._self_instance = weakref.ref(wrapped.__self__, _callback)
+
+            super(WeakFunctionProxy, self).__init__(
+                    weakref.proxy(wrapped.__func__, _callback))
+
+        except AttributeError:
+            self._self_instance = None
+
+            super(WeakFunctionProxy, self).__init__(
+                    weakref.proxy(wrapped, _callback))
+
+    def __call__(self, *args, **kwargs):
+        # We perform a boolean check here on the instance and wrapped
+        # function as that will trigger the reference error prior to
+        # calling if the reference had expired.
+
+        instance = self._self_instance and self._self_instance()
+        function = self.__wrapped__ and self.__wrapped__
+
+        # If the wrapped function was originally a bound function, for
+        # which we retained a reference to the instance and the unbound
+        # function we need to rebind the function and then call it. If
+        # not just called the wrapped function.
+
+        if instance is None:
+            return self.__wrapped__(*args, **kwargs)
+
+        return function.__get__(instance, type(instance))(*args, **kwargs)
diff --git a/venv/Lib/site-packages/yarl-1.5.1.dist-info/INSTALLER b/venv/Lib/site-packages/yarl-1.5.1.dist-info/INSTALLER
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/venv/Lib/site-packages/yarl-1.5.1.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/venv/Lib/site-packages/yarl-1.5.1.dist-info/LICENSE b/venv/Lib/site-packages/yarl-1.5.1.dist-info/LICENSE
new file mode 100644
index 0000000..3e37e61
--- /dev/null
+++ b/venv/Lib/site-packages/yarl-1.5.1.dist-info/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+   9. Accepting Warranty or Additional Liability. While redistributing
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+      of any other Contributor, and only if You agree to indemnify,
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+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
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+   Copyright 2016-2018, Andrew Svetlov and aio-libs team
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
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+       http://www.apache.org/licenses/LICENSE-2.0
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diff --git a/venv/Lib/site-packages/yarl-1.5.1.dist-info/METADATA b/venv/Lib/site-packages/yarl-1.5.1.dist-info/METADATA
new file mode 100644
index 0000000..8e7f5cd
--- /dev/null
+++ b/venv/Lib/site-packages/yarl-1.5.1.dist-info/METADATA
@@ -0,0 +1,701 @@
+Metadata-Version: 2.1
+Name: yarl
+Version: 1.5.1
+Summary: Yet another URL library
+Home-page: https://github.com/aio-libs/yarl/
+Author: Andrew Svetlov
+Author-email: andrew.svetlov@gmail.com
+License: Apache 2
+Platform: UNKNOWN
+Classifier: License :: OSI Approved :: Apache Software License
+Classifier: Intended Audience :: Developers
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Programming Language :: Python :: 3.7
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Topic :: Internet :: WWW/HTTP
+Requires-Python: >=3.5
+Description-Content-Type: text/x-rst
+Requires-Dist: multidict (>=4.0)
+Requires-Dist: idna (>=2.0)
+Requires-Dist: typing-extensions (>=3.7.4) ; python_version < "3.8"
+
+yarl
+====
+
+.. image:: https://dev.azure.com/aio-libs/yarl/_apis/build/status/CI?branchName=master
+  :target: https://dev.azure.com/aio-libs/yarl/_build/latest?definitionId=7&branchName=master
+  :align: right
+
+.. image:: https://codecov.io/gh/aio-libs/yarl/branch/master/graph/badge.svg
+  :target: https://codecov.io/gh/aio-libs/yarl
+
+.. image:: https://badge.fury.io/py/yarl.svg
+    :target: https://badge.fury.io/py/yarl
+
+
+.. image:: https://readthedocs.org/projects/yarl/badge/?version=latest
+    :target: https://yarl.readthedocs.io
+
+
+.. image:: https://img.shields.io/pypi/pyversions/yarl.svg
+    :target: https://pypi.python.org/pypi/yarl
+
+.. image:: https://badges.gitter.im/Join%20Chat.svg
+    :target: https://gitter.im/aio-libs/Lobby
+    :alt: Chat on Gitter
+
+Introduction
+------------
+
+Url is constructed from ``str``:
+
+.. code-block:: pycon
+
+   >>> from yarl import URL
+   >>> url = URL('https://www.python.org/~guido?arg=1#frag')
+   >>> url
+   URL('https://www.python.org/~guido?arg=1#frag')
+
+All url parts: *scheme*, *user*, *password*, *host*, *port*, *path*,
+*query* and *fragment* are accessible by properties:
+
+.. code-block:: pycon
+
+   >>> url.scheme
+   'https'
+   >>> url.host
+   'www.python.org'
+   >>> url.path
+   '/~guido'
+   >>> url.query_string
+   'arg=1'
+   >>> url.query
+   <MultiDictProxy('arg': '1')>
+   >>> url.fragment
+   'frag'
+
+All url manipulations produce a new url object:
+
+.. code-block:: pycon
+
+   >>> url = URL('https://www.python.org')
+   >>> url / 'foo' / 'bar'
+   URL('https://www.python.org/foo/bar')
+   >>> url / 'foo' % {'bar': 'baz'}
+   URL('https://www.python.org/foo?bar=baz')
+
+Strings passed to constructor and modification methods are
+automatically encoded giving canonical representation as result:
+
+.. code-block:: pycon
+
+   >>> url = URL('https://www.python.org/путь')
+   >>> url
+   URL('https://www.python.org/%D0%BF%D1%83%D1%82%D1%8C')
+
+Regular properties are *percent-decoded*, use ``raw_`` versions for
+getting *encoded* strings:
+
+.. code-block:: pycon
+
+   >>> url.path
+   '/путь'
+
+   >>> url.raw_path
+   '/%D0%BF%D1%83%D1%82%D1%8C'
+
+Human readable representation of URL is available as ``.human_repr()``:
+
+.. code-block:: pycon
+
+   >>> url.human_repr()
+   'https://www.python.org/путь'
+
+For full documentation please read https://yarl.readthedocs.org.
+
+
+Installation
+------------
+
+::
+
+   $ pip install yarl
+
+The library is Python 3 only!
+
+PyPI contains binary wheels for Linux, Windows and MacOS.  If you want to install
+``yarl`` on another operating system (like *Alpine Linux*, which is not
+manylinux-compliant because of the missing glibc and therefore, cannot be
+used with our wheels) the the tarball will be used to compile the library from
+the source code. It requires a C compiler and and Python headers installed.
+
+To skip the compilation you must explicitly opt-in by setting the `YARL_NO_EXTENSIONS`
+environment variable to a non-empty value, e.g.:
+
+.. code-block:: bash
+
+   $ YARL_NO_EXTENSIONS=1 pip install yarl
+
+Please note that the pure-Python (uncompiled) version is much slower. However,
+PyPy always uses a pure-Python implementation, and, as such, it is unaffected
+by this variable.
+
+Dependencies
+------------
+
+YARL requires multidict_ library.
+
+
+API documentation
+------------------
+
+The documentation is located at https://yarl.readthedocs.org
+
+
+Why isn't boolean supported by the URL query API?
+-------------------------------------------------
+
+There is no standard for boolean representation of boolean values.
+
+Some systems prefer ``true``/``false``, others like ``yes``/``no``, ``on``/``off``,
+``Y``/``N``, ``1``/``0``, etc.
+
+``yarl`` cannot make an unambiguous decision on how to serialize ``bool`` values because
+it is specific to how the end-user's application is built and would be different for
+different apps.  The library doesn't accept booleans in the API; a user should convert
+bools into strings using own preferred translation protocol.
+
+
+Comparison with other URL libraries
+------------------------------------
+
+* furl (https://pypi.python.org/pypi/furl)
+
+  The library has rich functionality but the ``furl`` object is mutable.
+
+  I'm afraid to pass this object into foreign code: who knows if the
+  code will modify my url in a terrible way while I just want to send URL
+  with handy helpers for accessing URL properties.
+
+  ``furl`` has other non-obvious tricky things but the main objection
+  is mutability.
+
+* URLObject (https://pypi.python.org/pypi/URLObject)
+
+  URLObject is immutable, that's pretty good.
+
+  Every URL change generates a new URL object.
+
+  But the library doesn't do any decode/encode transformations leaving the
+  end user to cope with these gory details.
+
+
+Source code
+-----------
+
+The project is hosted on GitHub_
+
+Please file an issue on the `bug tracker
+<https://github.com/aio-libs/yarl/issues>`_ if you have found a bug
+or have some suggestion in order to improve the library.
+
+The library uses `Azure Pipelines <https://dev.azure.com/aio-libs/yarl>`_ for
+Continuous Integration.
+
+Discussion list
+---------------
+
+*aio-libs* google group: https://groups.google.com/forum/#!forum/aio-libs
+
+Feel free to post your questions and ideas here.
+
+
+Authors and License
+-------------------
+
+The ``yarl`` package is written by Andrew Svetlov.
+
+It's *Apache 2* licensed and freely available.
+
+
+.. _GitHub: https://github.com/aio-libs/yarl
+
+.. _multidict: https://github.com/aio-libs/multidict
+
+
+=========
+Changelog
+=========
+
+..
+    You should *NOT* be adding new change log entries to this file, this
+    file is managed by towncrier. You *may* edit previous change logs to
+    fix problems like typo corrections or such.
+    To add a new change log entry, please see
+    https://pip.pypa.io/en/latest/development/#adding-a-news-entry
+    we named the news folder "changes".
+
+    WARNING: Don't drop the next directive!
+
+.. towncrier release notes start
+
+1.5.0 (2020-07-26)
+==================
+
+Features
+--------
+
+- Convert host to lowercase on URL building.
+  `#386 <https://github.com/aio-libs/yarl/issues/386>`_
+- Allow using ``mod`` operator (`%`) for updating query string (an alias for ``update_query()`` method).
+  `#435 <https://github.com/aio-libs/yarl/issues/435>`_
+- Allow use of sequences such as ``list`` and ``tuple`` in the values
+  of a mapping such as ``dict`` to represent that a key has many values::
+
+      url = URL("http://example.com")
+      assert url.with_query({"a": [1, 2]}) == URL("http://example.com/?a=1&a=2")
+
+  `#443 <https://github.com/aio-libs/yarl/issues/443>`_
+- Support URL.build() with scheme and path (creates a relative URL).
+  `#464 <https://github.com/aio-libs/yarl/issues/464>`_
+- Cache slow IDNA encode/decode calls.
+  `#476 <https://github.com/aio-libs/yarl/issues/476>`_
+- Add ``@final`` / ``Final`` type hints
+  `#477 <https://github.com/aio-libs/yarl/issues/477>`_
+- Support URL authority/raw_authority properties and authority argument of ``URL.build()`` method.
+  `#478 <https://github.com/aio-libs/yarl/issues/478>`_
+- Hide the library implementation details, make the exposed public list very clean.
+  `#483 <https://github.com/aio-libs/yarl/issues/483>`_
+
+
+Bugfixes
+--------
+
+- Fix tests with newer Python (3.7.6, 3.8.1 and 3.9.0+).
+  `#409 <https://github.com/aio-libs/yarl/issues/409>`_
+- Fix a bug where query component, passed in a form of mapping or sequence, is unquoted in unexpected way.
+  `#426 <https://github.com/aio-libs/yarl/issues/426>`_
+- Hide `Query` and `QueryVariable` type aliases in `__init__.pyi`, now they are prefixed with underscore.
+  `#431 <https://github.com/aio-libs/yarl/issues/431>`_
+- Keep ipv6 brackets after updating port/user/password.
+  `#451 <https://github.com/aio-libs/yarl/issues/451>`_
+
+
+----
+
+
+1.4.2 (2019-12-05)
+==================
+
+Features
+--------
+
+- Workaround for missing `str.isascii()` in Python 3.6
+  `#389 <https://github.com/aio-libs/yarl/issues/389>`_
+
+
+----
+
+
+1.4.1 (2019-11-29)
+==================
+
+* Fix regression, make the library work on Python 3.5 and 3.6 again.
+
+1.4.0 (2019-11-29)
+==================
+
+* Distinguish an empty password in URL from a password not provided at all (#262)
+
+* Fixed annotations for optional parameters of ``URL.build`` (#309)
+
+* Use None as default value of ``user`` parameter of ``URL.build`` (#309)
+
+* Enforce building C Accelerated modules when installing from source tarball, use
+  ``YARL_NO_EXTENSIONS`` environment variable for falling back to (slower) Pure Python
+  implementation (#329)
+
+* Drop Python 3.5 support
+
+* Fix quoting of plus in path by pure python version (#339)
+
+* Don't create a new URL if fragment is unchanged (#292)
+
+* Included in error msg the path that produces starting slash forbidden error (#376)
+
+* Skip slow IDNA encoding for ASCII-only strings (#387)
+
+
+1.3.0 (2018-12-11)
+==================
+
+* Fix annotations for ``query`` parameter (#207)
+
+* An incoming query sequence can have int variables (the same as for
+  Mapping type) (#208)
+
+* Add ``URL.explicit_port`` property (#218)
+
+* Give a friendlier error when port cant be converted to int (#168)
+
+* ``bool(URL())`` now returns ``False`` (#272)
+
+1.2.6 (2018-06-14)
+==================
+
+* Drop Python 3.4 trove classifier (#205)
+
+1.2.5 (2018-05-23)
+==================
+
+* Fix annotations for ``build`` (#199)
+
+1.2.4 (2018-05-08)
+==================
+
+* Fix annotations for ``cached_property`` (#195)
+
+1.2.3 (2018-05-03)
+==================
+
+* Accept ``str`` subclasses in ``URL`` constructor (#190)
+
+1.2.2 (2018-05-01)
+==================
+
+* Fix build
+
+1.2.1 (2018-04-30)
+==================
+
+* Pin minimal required Python to 3.5.3 (#189)
+
+1.2.0 (2018-04-30)
+==================
+
+* Forbid inheritance, replace ``__init__`` with ``__new__`` (#171)
+
+* Support PEP-561 (provide type hinting marker) (#182)
+
+1.1.1 (2018-02-17)
+==================
+
+* Fix performance regression: don't encode enmpty netloc (#170)
+
+1.1.0 (2018-01-21)
+==================
+
+* Make pure Python quoter consistent with Cython version (#162)
+
+1.0.0 (2018-01-15)
+==================
+
+* Use fast path if quoted string does not need requoting (#154)
+
+* Speed up quoting/unquoting by ``_Quoter`` and ``_Unquoter`` classes (#155)
+
+* Drop ``yarl.quote`` and ``yarl.unquote`` public functions (#155)
+
+* Add custom string writer, reuse static buffer if available (#157)
+  Code is 50-80 times faster than Pure Python version (was 4-5 times faster)
+
+* Don't recode IP zone (#144)
+
+* Support ``encoded=True`` in ``yarl.URL.build()`` (#158)
+
+* Fix updating query with multiple keys (#160)
+
+0.18.0 (2018-01-10)
+===================
+
+* Fallback to IDNA 2003 if domain name is not IDNA 2008 compatible (#152)
+
+0.17.0 (2017-12-30)
+===================
+
+* Use IDNA 2008 for domain name processing (#149)
+
+0.16.0 (2017-12-07)
+===================
+
+* Fix raising ``TypeError`` by ``url.query_string()`` after
+  ``url.with_query({})`` (empty mapping) (#141)
+
+0.15.0 (2017-11-23)
+===================
+
+* Add ``raw_path_qs`` attribute (#137)
+
+0.14.2 (2017-11-14)
+===================
+
+* Restore ``strict`` parameter as no-op in ``quote`` / ``unquote``
+
+0.14.1 (2017-11-13)
+===================
+
+* Restore ``strict`` parameter as no-op for sake of compatibility with
+  aiohttp 2.2
+
+0.14.0 (2017-11-11)
+===================
+
+* Drop strict mode (#123)
+
+* Fix ``"ValueError: Unallowed PCT %"`` when there's a ``"%"`` in the url (#124)
+
+0.13.0 (2017-10-01)
+===================
+
+* Document ``encoded`` parameter (#102)
+
+* Support relative urls like ``'?key=value'`` (#100)
+
+* Unsafe encoding for QS fixed. Encode ``;`` char in value param (#104)
+
+* Process passwords without user names (#95)
+
+0.12.0 (2017-06-26)
+===================
+
+* Properly support paths without leading slash in ``URL.with_path()`` (#90)
+
+* Enable type annotation checks
+
+0.11.0 (2017-06-26)
+===================
+
+* Normalize path (#86)
+
+* Clear query and fragment parts in ``.with_path()`` (#85)
+
+0.10.3 (2017-06-13)
+===================
+
+* Prevent double URL args unquoting (#83)
+
+0.10.2 (2017-05-05)
+===================
+
+* Unexpected hash behaviour (#75)
+
+
+0.10.1 (2017-05-03)
+===================
+
+* Unexpected compare behaviour (#73)
+
+* Do not quote or unquote + if not a query string. (#74)
+
+
+0.10.0 (2017-03-14)
+===================
+
+* Added ``URL.build`` class method (#58)
+
+* Added ``path_qs`` attribute (#42)
+
+
+0.9.8 (2017-02-16)
+==================
+
+* Do not quote ``:`` in path
+
+
+0.9.7 (2017-02-16)
+==================
+
+* Load from pickle without _cache (#56)
+
+* Percent-encoded pluses in path variables become spaces (#59)
+
+
+0.9.6 (2017-02-15)
+==================
+
+* Revert backward incompatible change (BaseURL)
+
+
+0.9.5 (2017-02-14)
+==================
+
+* Fix BaseURL rich comparison support
+
+
+0.9.4 (2017-02-14)
+==================
+
+* Use BaseURL
+
+
+0.9.3 (2017-02-14)
+==================
+
+* Added BaseURL
+
+
+0.9.2 (2017-02-08)
+==================
+
+* Remove debug print
+
+
+0.9.1 (2017-02-07)
+==================
+
+* Do not lose tail chars (#45)
+
+
+0.9.0 (2017-02-07)
+==================
+
+* Allow to quote ``%`` in non strict mode (#21)
+
+* Incorrect parsing of query parameters with %3B (;) inside (#34)
+
+* Fix core dumps (#41)
+
+* tmpbuf - compiling error (#43)
+
+* Added ``URL.update_path()`` method
+
+* Added ``URL.update_query()`` method (#47)
+
+
+0.8.1 (2016-12-03)
+==================
+
+* Fix broken aiohttp: revert back ``quote`` / ``unquote``.
+
+
+0.8.0 (2016-12-03)
+==================
+
+* Support more verbose error messages in ``.with_query()`` (#24)
+
+* Don't percent-encode ``@`` and ``:`` in path (#32)
+
+* Don't expose ``yarl.quote`` and ``yarl.unquote``, these functions are
+  part of private API
+
+0.7.1 (2016-11-18)
+==================
+
+* Accept not only ``str`` but all classes inherited from ``str`` also (#25)
+
+0.7.0 (2016-11-07)
+==================
+
+* Accept ``int`` as value for ``.with_query()``
+
+0.6.0 (2016-11-07)
+==================
+
+* Explicitly use UTF8 encoding in setup.py (#20)
+* Properly unquote non-UTF8 strings (#19)
+
+0.5.3 (2016-11-02)
+==================
+
+* Don't use namedtuple fields but indexes on URL construction
+
+0.5.2 (2016-11-02)
+==================
+
+* Inline ``_encode`` class method
+
+0.5.1 (2016-11-02)
+==================
+
+* Make URL construction faster by removing extra classmethod calls
+
+0.5.0 (2016-11-02)
+==================
+
+* Add cython optimization for quoting/unquoting
+* Provide binary wheels
+
+0.4.3 (2016-09-29)
+==================
+
+* Fix typing stubs
+
+0.4.2 (2016-09-29)
+==================
+
+* Expose ``quote()`` and ``unquote()`` as public API
+
+0.4.1 (2016-09-28)
+==================
+
+* Support empty values in query (``'/path?arg'``)
+
+0.4.0 (2016-09-27)
+==================
+
+* Introduce ``relative()`` (#16)
+
+0.3.2 (2016-09-27)
+==================
+
+* Typo fixes #15
+
+0.3.1 (2016-09-26)
+==================
+
+* Support sequence of pairs as ``with_query()`` parameter
+
+0.3.0 (2016-09-26)
+==================
+
+* Introduce ``is_default_port()``
+
+0.2.1 (2016-09-26)
+==================
+
+* Raise ValueError for URLs like 'http://:8080/'
+
+0.2.0 (2016-09-18)
+==================
+
+* Avoid doubling slashes when joining paths (#13)
+
+* Appending path starting from slash is forbidden (#12)
+
+0.1.4 (2016-09-09)
+==================
+
+* Add kwargs support for ``with_query()`` (#10)
+
+0.1.3 (2016-09-07)
+==================
+
+* Document ``with_query()``, ``with_fragment()`` and ``origin()``
+
+* Allow ``None`` for ``with_query()`` and ``with_fragment()``
+
+0.1.2 (2016-09-07)
+==================
+
+* Fix links, tune docs theme.
+
+0.1.1 (2016-09-06)
+==================
+
+* Update README, old version used obsolete API
+
+0.1.0 (2016-09-06)
+==================
+
+* The library was deeply refactored, bytes are gone away but all
+  accepted strings are encoded if needed.
+
+0.0.1 (2016-08-30)
+==================
+
+* The first release.
+
+
diff --git a/venv/Lib/site-packages/yarl-1.5.1.dist-info/RECORD b/venv/Lib/site-packages/yarl-1.5.1.dist-info/RECORD
new file mode 100644
index 0000000..248085f
--- /dev/null
+++ b/venv/Lib/site-packages/yarl-1.5.1.dist-info/RECORD
@@ -0,0 +1,21 @@
+yarl-1.5.1.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+yarl-1.5.1.dist-info/LICENSE,sha256=PH_Yufnp1q9DnAmWxKDWyTg4DAS8rYibeIgZQf4sQTI,11569
+yarl-1.5.1.dist-info/METADATA,sha256=scBHPxkUE2QIWHYUg_JqOu0TWQeH2Peh6L--uiNtZOE,16528
+yarl-1.5.1.dist-info/RECORD,,
+yarl-1.5.1.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+yarl-1.5.1.dist-info/WHEEL,sha256=-ODc2a2AO_YJ5T46NOquHfWjRM7bQvlt-f3zRaLBjL4,105
+yarl-1.5.1.dist-info/top_level.txt,sha256=vf3SJuQh-k7YtvsUrV_OPOrT9Kqn0COlk7IPYyhtGkQ,5
+yarl/__init__.py,sha256=VX110GkzGNcQDSMLi70ItkogVE1LxeegjQ2RPoTJ-Fo,159
+yarl/__init__.pyi,sha256=EEFiNABHYl0e0kTv041qvNdX7zkQ9MsI7Zs1PRk6cww,3746
+yarl/__pycache__/__init__.cpython-38.pyc,,
+yarl/__pycache__/_quoting.cpython-38.pyc,,
+yarl/__pycache__/_quoting_py.cpython-38.pyc,,
+yarl/__pycache__/_url.cpython-38.pyc,,
+yarl/_quoting.py,sha256=JSWI4rNhpLOLNxs2w_i0b0IE1N1CJaWnOs3eg4wJ7RU,537
+yarl/_quoting_c.c,sha256=z7EUzcVRjMjnOeu-XRWLn-Ym6uRHpPk606zH-FV1wC0,476397
+yarl/_quoting_c.cp38-win_amd64.pyd,sha256=q1ixeev2CPIFt4y9gYaA4AL7qff-XTmW8jIXeOEpPjc,84480
+yarl/_quoting_c.pyi,sha256=8QHtEuD1IwrQKNfZU8VAykdBOF9TqF6DFc6jmPbM6mo,463
+yarl/_quoting_c.pyx,sha256=bz2UOaux2MgU1wn0swfQNk6duiRxEpSGXBX8JFZuCVo,12206
+yarl/_quoting_py.py,sha256=AtHQUIqm2k7u_plHZykMl37sjOltTskYMCvdKbbKjLs,6722
+yarl/_url.py,sha256=TOxpp_NH-Sz78Y37ALyOsvjQ_yM_4TTzSkcBTySBC70,35695
+yarl/py.typed,sha256=Ml3HXnuYFoaiowlyfo6IQ_Dmv9gGV8uhQbqwZDzsNE8,13
diff --git a/venv/Lib/site-packages/yarl-1.5.1.dist-info/REQUESTED b/venv/Lib/site-packages/yarl-1.5.1.dist-info/REQUESTED
new file mode 100644
index 0000000..e69de29
diff --git a/venv/Lib/site-packages/yarl-1.5.1.dist-info/WHEEL b/venv/Lib/site-packages/yarl-1.5.1.dist-info/WHEEL
new file mode 100644
index 0000000..069f5d9
--- /dev/null
+++ b/venv/Lib/site-packages/yarl-1.5.1.dist-info/WHEEL
@@ -0,0 +1,5 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.34.2)
+Root-Is-Purelib: false
+Tag: cp38-cp38-win_amd64
+
diff --git a/venv/Lib/site-packages/yarl-1.5.1.dist-info/top_level.txt b/venv/Lib/site-packages/yarl-1.5.1.dist-info/top_level.txt
new file mode 100644
index 0000000..e93e8bd
--- /dev/null
+++ b/venv/Lib/site-packages/yarl-1.5.1.dist-info/top_level.txt
@@ -0,0 +1 @@
+yarl
diff --git a/venv/Lib/site-packages/yarl/__init__.py b/venv/Lib/site-packages/yarl/__init__.py
new file mode 100644
index 0000000..c031c49
--- /dev/null
+++ b/venv/Lib/site-packages/yarl/__init__.py
@@ -0,0 +1,5 @@
+from ._url import URL, cache_clear, cache_configure, cache_info
+
+__version__ = "1.5.1"
+
+__all__ = ("URL", "cache_clear", "cache_configure", "cache_info")
diff --git a/venv/Lib/site-packages/yarl/__init__.pyi b/venv/Lib/site-packages/yarl/__init__.pyi
new file mode 100644
index 0000000..c4cd87d
--- /dev/null
+++ b/venv/Lib/site-packages/yarl/__init__.pyi
@@ -0,0 +1,110 @@
+from typing import overload, Any, Tuple, Optional, Mapping, Union, Sequence, Type
+import multidict
+from functools import _CacheInfo
+import sys
+
+if sys.version_info >= (3, 8):
+    from typing import TypedDict, Final, final
+else:
+    from typing_extensions import TypedDict, Final, final
+
+_QueryVariable = Union[str, int]
+_Query = Union[
+    None, str, Mapping[str, _QueryVariable], Sequence[Tuple[str, _QueryVariable]]
+]
+@final
+class URL:
+    scheme: Final[str]
+    raw_user: Final[str]
+    user: Final[Optional[str]]
+    raw_password: Final[Optional[str]]
+    password: Final[Optional[str]]
+    raw_host: Final[Optional[str]]
+    host: Final[Optional[str]]
+    port: Final[Optional[int]]
+    raw_authority: Final[str]
+    authority: Final[str]
+    raw_path: Final[str]
+    path: Final[str]
+    raw_query_string: Final[str]
+    query_string: Final[str]
+    path_qs: Final[str]
+    raw_path_qs: Final[str]
+    raw_fragment: Final[str]
+    fragment: Final[str]
+    query: Final[multidict.MultiDict[str]]
+    raw_name: Final[str]
+    name: Final[str]
+    raw_parts: Final[Tuple[str, ...]]
+    parts: Final[Tuple[str, ...]]
+    parent: Final[URL]
+    def __init__(
+        self, val: Union[str, "URL"] = ..., *, encoded: bool = ...
+    ) -> None: ...
+    @classmethod
+    def build(
+        cls,
+        *,
+        scheme: str = ...,
+        authority: str = ...,
+        user: Optional[str] = ...,
+        password: Optional[str] = ...,
+        host: str = ...,
+        port: Optional[int] = ...,
+        path: str = ...,
+        query: Optional[_Query] = ...,
+        query_string: str = ...,
+        fragment: str = ...,
+        encoded: bool = ...
+    ) -> URL: ...
+    def __str__(self) -> str: ...
+    def __repr__(self) -> str: ...
+    def __eq__(self, other: Any) -> bool: ...
+    def __le__(self, other: Any) -> bool: ...
+    def __lt__(self, other: Any) -> bool: ...
+    def __ge__(self, other: Any) -> bool: ...
+    def __gt__(self, other: Any) -> bool: ...
+    def __hash__(self) -> int: ...
+    def __truediv__(self, name: str) -> URL: ...
+    def __mod__(self, query: _Query) -> URL: ...
+    def is_absolute(self) -> bool: ...
+    def is_default_port(self) -> bool: ...
+    def origin(self) -> URL: ...
+    def relative(self) -> URL: ...
+    def with_scheme(self, scheme: str) -> URL: ...
+    def with_user(self, user: Optional[str]) -> URL: ...
+    def with_password(self, password: Optional[str]) -> URL: ...
+    def with_host(self, host: str) -> URL: ...
+    def with_port(self, port: Optional[int]) -> URL: ...
+    def with_path(self, path: str, *, encoded: bool = ...) -> URL: ...
+    @overload
+    def with_query(self, query: _Query) -> URL: ...
+    @overload
+    def with_query(self, **kwargs: _QueryVariable) -> URL: ...
+    @overload
+    def update_query(self, query: _Query) -> URL: ...
+    @overload
+    def update_query(self, **kwargs: _QueryVariable) -> URL: ...
+    def with_fragment(self, fragment: Optional[str]) -> URL: ...
+    def with_name(self, name: str) -> URL: ...
+    def join(self, url: URL) -> URL: ...
+    def human_repr(self) -> str: ...
+    # private API
+    @classmethod
+    def _normalize_path(cls, path: str) -> str: ...
+
+@final
+class cached_property:
+    def __init__(self, wrapped: Any) -> None: ...
+    def __get__(self, inst: URL, owner: Type[URL]) -> Any: ...
+    def __set__(self, inst: URL, value: Any) -> None: ...
+
+class CacheInfo(TypedDict):
+    idna_encode: _CacheInfo
+    idna_decode: _CacheInfo
+
+def cache_clear() -> None: ...
+def cache_info() -> CacheInfo: ...
+def cache_configure(
+    *, idna_encode_size: Optional[int] = ..., idna_decode_size: Optional[int] = ...
+) -> None: ...
diff --git a/venv/Lib/site-packages/yarl/_quoting.py b/venv/Lib/site-packages/yarl/_quoting.py
new file mode 100644
index 0000000..4f8d392
--- /dev/null
+++ b/venv/Lib/site-packages/yarl/_quoting.py
@@ -0,0 +1,18 @@
+import os
+import sys
+
+__all__ = ("_Quoter", "_Unquoter")
+
+
+NO_EXTENSIONS = bool(os.environ.get("YARL_NO_EXTENSIONS"))  # type: bool
+if sys.implementation.name != "cpython":
+    NO_EXTENSIONS = True
+
+
+if not NO_EXTENSIONS:  # pragma: no branch
+    try:
+        from ._quoting_c import _Quoter, _Unquoter  # type: ignore[misc]
+    except ImportError:  # pragma: no cover
+        from ._quoting_py import _Quoter, _Unquoter  # type: ignore[misc]
+else:
+    from ._quoting_py import _Quoter, _Unquoter  # type: ignore[misc]
diff --git a/venv/Lib/site-packages/yarl/_quoting_c.c b/venv/Lib/site-packages/yarl/_quoting_c.c
new file mode 100644
index 0000000..b12143c
--- /dev/null
+++ b/venv/Lib/site-packages/yarl/_quoting_c.c
@@ -0,0 +1,12380 @@
+/* Generated by Cython 0.29.21 */
+
+#define PY_SSIZE_T_CLEAN
+#include "Python.h"
+#ifndef Py_PYTHON_H
+    #error Python headers needed to compile C extensions, please install development version of Python.
+#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
+    #error Cython requires Python 2.6+ or Python 3.3+.
+#else
+#define CYTHON_ABI "0_29_21"
+#define CYTHON_HEX_VERSION 0x001D15F0
+#define CYTHON_FUTURE_DIVISION 1
+#include <stddef.h>
+#ifndef offsetof
+  #define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
+#endif
+#if !defined(WIN32) && !defined(MS_WINDOWS)
+  #ifndef __stdcall
+    #define __stdcall
+  #endif
+  #ifndef __cdecl
+    #define __cdecl
+  #endif
+  #ifndef __fastcall
+    #define __fastcall
+  #endif
+#endif
+#ifndef DL_IMPORT
+  #define DL_IMPORT(t) t
+#endif
+#ifndef DL_EXPORT
+  #define DL_EXPORT(t) t
+#endif
+#define __PYX_COMMA ,
+#ifndef HAVE_LONG_LONG
+  #if PY_VERSION_HEX >= 0x02070000
+    #define HAVE_LONG_LONG
+  #endif
+#endif
+#ifndef PY_LONG_LONG
+  #define PY_LONG_LONG LONG_LONG
+#endif
+#ifndef Py_HUGE_VAL
+  #define Py_HUGE_VAL HUGE_VAL
+#endif
+#ifdef PYPY_VERSION
+  #define CYTHON_COMPILING_IN_PYPY 1
+  #define CYTHON_COMPILING_IN_PYSTON 0
+  #define CYTHON_COMPILING_IN_CPYTHON 0
+  #undef CYTHON_USE_TYPE_SLOTS
+  #define CYTHON_USE_TYPE_SLOTS 0
+  #undef CYTHON_USE_PYTYPE_LOOKUP
+  #define CYTHON_USE_PYTYPE_LOOKUP 0
+  #if PY_VERSION_HEX < 0x03050000
+    #undef CYTHON_USE_ASYNC_SLOTS
+    #define CYTHON_USE_ASYNC_SLOTS 0
+  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
+    #define CYTHON_USE_ASYNC_SLOTS 1
+  #endif
+  #undef CYTHON_USE_PYLIST_INTERNALS
+  #define CYTHON_USE_PYLIST_INTERNALS 0
+  #undef CYTHON_USE_UNICODE_INTERNALS
+  #define CYTHON_USE_UNICODE_INTERNALS 0
+  #undef CYTHON_USE_UNICODE_WRITER
+  #define CYTHON_USE_UNICODE_WRITER 0
+  #undef CYTHON_USE_PYLONG_INTERNALS
+  #define CYTHON_USE_PYLONG_INTERNALS 0
+  #undef CYTHON_AVOID_BORROWED_REFS
+  #define CYTHON_AVOID_BORROWED_REFS 1
+  #undef CYTHON_ASSUME_SAFE_MACROS
+  #define CYTHON_ASSUME_SAFE_MACROS 0
+  #undef CYTHON_UNPACK_METHODS
+  #define CYTHON_UNPACK_METHODS 0
+  #undef CYTHON_FAST_THREAD_STATE
+  #define CYTHON_FAST_THREAD_STATE 0
+  #undef CYTHON_FAST_PYCALL
+  #define CYTHON_FAST_PYCALL 0
+  #undef CYTHON_PEP489_MULTI_PHASE_INIT
+  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
+  #undef CYTHON_USE_TP_FINALIZE
+  #define CYTHON_USE_TP_FINALIZE 0
+  #undef CYTHON_USE_DICT_VERSIONS
+  #define CYTHON_USE_DICT_VERSIONS 0
+  #undef CYTHON_USE_EXC_INFO_STACK
+  #define CYTHON_USE_EXC_INFO_STACK 0
+#elif defined(PYSTON_VERSION)
+  #define CYTHON_COMPILING_IN_PYPY 0
+  #define CYTHON_COMPILING_IN_PYSTON 1
+  #define CYTHON_COMPILING_IN_CPYTHON 0
+  #ifndef CYTHON_USE_TYPE_SLOTS
+    #define CYTHON_USE_TYPE_SLOTS 1
+  #endif
+  #undef CYTHON_USE_PYTYPE_LOOKUP
+  #define CYTHON_USE_PYTYPE_LOOKUP 0
+  #undef CYTHON_USE_ASYNC_SLOTS
+  #define CYTHON_USE_ASYNC_SLOTS 0
+  #undef CYTHON_USE_PYLIST_INTERNALS
+  #define CYTHON_USE_PYLIST_INTERNALS 0
+  #ifndef CYTHON_USE_UNICODE_INTERNALS
+    #define CYTHON_USE_UNICODE_INTERNALS 1
+  #endif
+  #undef CYTHON_USE_UNICODE_WRITER
+  #define CYTHON_USE_UNICODE_WRITER 0
+  #undef CYTHON_USE_PYLONG_INTERNALS
+  #define CYTHON_USE_PYLONG_INTERNALS 0
+  #ifndef CYTHON_AVOID_BORROWED_REFS
+    #define CYTHON_AVOID_BORROWED_REFS 0
+  #endif
+  #ifndef CYTHON_ASSUME_SAFE_MACROS
+    #define CYTHON_ASSUME_SAFE_MACROS 1
+  #endif
+  #ifndef CYTHON_UNPACK_METHODS
+    #define CYTHON_UNPACK_METHODS 1
+  #endif
+  #undef CYTHON_FAST_THREAD_STATE
+  #define CYTHON_FAST_THREAD_STATE 0
+  #undef CYTHON_FAST_PYCALL
+  #define CYTHON_FAST_PYCALL 0
+  #undef CYTHON_PEP489_MULTI_PHASE_INIT
+  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
+  #undef CYTHON_USE_TP_FINALIZE
+  #define CYTHON_USE_TP_FINALIZE 0
+  #undef CYTHON_USE_DICT_VERSIONS
+  #define CYTHON_USE_DICT_VERSIONS 0
+  #undef CYTHON_USE_EXC_INFO_STACK
+  #define CYTHON_USE_EXC_INFO_STACK 0
+#else
+  #define CYTHON_COMPILING_IN_PYPY 0
+  #define CYTHON_COMPILING_IN_PYSTON 0
+  #define CYTHON_COMPILING_IN_CPYTHON 1
+  #ifndef CYTHON_USE_TYPE_SLOTS
+    #define CYTHON_USE_TYPE_SLOTS 1
+  #endif
+  #if PY_VERSION_HEX < 0x02070000
+    #undef CYTHON_USE_PYTYPE_LOOKUP
+    #define CYTHON_USE_PYTYPE_LOOKUP 0
+  #elif !defined(CYTHON_USE_PYTYPE_LOOKUP)
+    #define CYTHON_USE_PYTYPE_LOOKUP 1
+  #endif
+  #if PY_MAJOR_VERSION < 3
+    #undef CYTHON_USE_ASYNC_SLOTS
+    #define CYTHON_USE_ASYNC_SLOTS 0
+  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
+    #define CYTHON_USE_ASYNC_SLOTS 1
+  #endif
+  #if PY_VERSION_HEX < 0x02070000
+    #undef CYTHON_USE_PYLONG_INTERNALS
+    #define CYTHON_USE_PYLONG_INTERNALS 0
+  #elif !defined(CYTHON_USE_PYLONG_INTERNALS)
+    #define CYTHON_USE_PYLONG_INTERNALS 1
+  #endif
+  #ifndef CYTHON_USE_PYLIST_INTERNALS
+    #define CYTHON_USE_PYLIST_INTERNALS 1
+  #endif
+  #ifndef CYTHON_USE_UNICODE_INTERNALS
+    #define CYTHON_USE_UNICODE_INTERNALS 1
+  #endif
+  #if PY_VERSION_HEX < 0x030300F0
+    #undef CYTHON_USE_UNICODE_WRITER
+    #define CYTHON_USE_UNICODE_WRITER 0
+  #elif !defined(CYTHON_USE_UNICODE_WRITER)
+    #define CYTHON_USE_UNICODE_WRITER 1
+  #endif
+  #ifndef CYTHON_AVOID_BORROWED_REFS
+    #define CYTHON_AVOID_BORROWED_REFS 0
+  #endif
+  #ifndef CYTHON_ASSUME_SAFE_MACROS
+    #define CYTHON_ASSUME_SAFE_MACROS 1
+  #endif
+  #ifndef CYTHON_UNPACK_METHODS
+    #define CYTHON_UNPACK_METHODS 1
+  #endif
+  #ifndef CYTHON_FAST_THREAD_STATE
+    #define CYTHON_FAST_THREAD_STATE 1
+  #endif
+  #ifndef CYTHON_FAST_PYCALL
+    #define CYTHON_FAST_PYCALL 1
+  #endif
+  #ifndef CYTHON_PEP489_MULTI_PHASE_INIT
+    #define CYTHON_PEP489_MULTI_PHASE_INIT (PY_VERSION_HEX >= 0x03050000)
+  #endif
+  #ifndef CYTHON_USE_TP_FINALIZE
+    #define CYTHON_USE_TP_FINALIZE (PY_VERSION_HEX >= 0x030400a1)
+  #endif
+  #ifndef CYTHON_USE_DICT_VERSIONS
+    #define CYTHON_USE_DICT_VERSIONS (PY_VERSION_HEX >= 0x030600B1)
+  #endif
+  #ifndef CYTHON_USE_EXC_INFO_STACK
+    #define CYTHON_USE_EXC_INFO_STACK (PY_VERSION_HEX >= 0x030700A3)
+  #endif
+#endif
+#if !defined(CYTHON_FAST_PYCCALL)
+#define CYTHON_FAST_PYCCALL  (CYTHON_FAST_PYCALL && PY_VERSION_HEX >= 0x030600B1)
+#endif
+#if CYTHON_USE_PYLONG_INTERNALS
+  #include "longintrepr.h"
+  #undef SHIFT
+  #undef BASE
+  #undef MASK
+  #ifdef SIZEOF_VOID_P
+    enum { __pyx_check_sizeof_voidp = 1 / (int)(SIZEOF_VOID_P == sizeof(void*)) };
+  #endif
+#endif
+#ifndef __has_attribute
+  #define __has_attribute(x) 0
+#endif
+#ifndef __has_cpp_attribute
+  #define __has_cpp_attribute(x) 0
+#endif
+#ifndef CYTHON_RESTRICT
+  #if defined(__GNUC__)
+    #define CYTHON_RESTRICT __restrict__
+  #elif defined(_MSC_VER) && _MSC_VER >= 1400
+    #define CYTHON_RESTRICT __restrict
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_RESTRICT restrict
+  #else
+    #define CYTHON_RESTRICT
+  #endif
+#endif
+#ifndef CYTHON_UNUSED
+# if defined(__GNUC__)
+#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#     define CYTHON_UNUSED __attribute__ ((__unused__))
+#   else
+#     define CYTHON_UNUSED
+#   endif
+# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
+#   define CYTHON_UNUSED __attribute__ ((__unused__))
+# else
+#   define CYTHON_UNUSED
+# endif
+#endif
+#ifndef CYTHON_MAYBE_UNUSED_VAR
+#  if defined(__cplusplus)
+     template<class T> void CYTHON_MAYBE_UNUSED_VAR( const T& ) { }
+#  else
+#    define CYTHON_MAYBE_UNUSED_VAR(x) (void)(x)
+#  endif
+#endif
+#ifndef CYTHON_NCP_UNUSED
+# if CYTHON_COMPILING_IN_CPYTHON
+#  define CYTHON_NCP_UNUSED
+# else
+#  define CYTHON_NCP_UNUSED CYTHON_UNUSED
+# endif
+#endif
+#define __Pyx_void_to_None(void_result) ((void)(void_result), Py_INCREF(Py_None), Py_None)
+#ifdef _MSC_VER
+    #ifndef _MSC_STDINT_H_
+        #if _MSC_VER < 1300
+           typedef unsigned char     uint8_t;
+           typedef unsigned int      uint32_t;
+        #else
+           typedef unsigned __int8   uint8_t;
+           typedef unsigned __int32  uint32_t;
+        #endif
+    #endif
+#else
+   #include <stdint.h>
+#endif
+#ifndef CYTHON_FALLTHROUGH
+  #if defined(__cplusplus) && __cplusplus >= 201103L
+    #if __has_cpp_attribute(fallthrough)
+      #define CYTHON_FALLTHROUGH [[fallthrough]]
+    #elif __has_cpp_attribute(clang::fallthrough)
+      #define CYTHON_FALLTHROUGH [[clang::fallthrough]]
+    #elif __has_cpp_attribute(gnu::fallthrough)
+      #define CYTHON_FALLTHROUGH [[gnu::fallthrough]]
+    #endif
+  #endif
+  #ifndef CYTHON_FALLTHROUGH
+    #if __has_attribute(fallthrough)
+      #define CYTHON_FALLTHROUGH __attribute__((fallthrough))
+    #else
+      #define CYTHON_FALLTHROUGH
+    #endif
+  #endif
+  #if defined(__clang__ ) && defined(__apple_build_version__)
+    #if __apple_build_version__ < 7000000
+      #undef  CYTHON_FALLTHROUGH
+      #define CYTHON_FALLTHROUGH
+    #endif
+  #endif
+#endif
+
+#ifndef CYTHON_INLINE
+  #if defined(__clang__)
+    #define CYTHON_INLINE __inline__ __attribute__ ((__unused__))
+  #elif defined(__GNUC__)
+    #define CYTHON_INLINE __inline__
+  #elif defined(_MSC_VER)
+    #define CYTHON_INLINE __inline
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_INLINE inline
+  #else
+    #define CYTHON_INLINE
+  #endif
+#endif
+
+#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600 && !defined(Py_OptimizeFlag)
+  #define Py_OptimizeFlag 0
+#endif
+#define __PYX_BUILD_PY_SSIZE_T "n"
+#define CYTHON_FORMAT_SSIZE_T "z"
+#if PY_MAJOR_VERSION < 3
+  #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyClass_Type
+#else
+  #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+#if PY_VERSION_HEX >= 0x030800A4 && PY_VERSION_HEX < 0x030800B2
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a, 0, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#else
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#endif
+  #define __Pyx_DefaultClassType PyType_Type
+#endif
+#ifndef Py_TPFLAGS_CHECKTYPES
+  #define Py_TPFLAGS_CHECKTYPES 0
+#endif
+#ifndef Py_TPFLAGS_HAVE_INDEX
+  #define Py_TPFLAGS_HAVE_INDEX 0
+#endif
+#ifndef Py_TPFLAGS_HAVE_NEWBUFFER
+  #define Py_TPFLAGS_HAVE_NEWBUFFER 0
+#endif
+#ifndef Py_TPFLAGS_HAVE_FINALIZE
+  #define Py_TPFLAGS_HAVE_FINALIZE 0
+#endif
+#ifndef METH_STACKLESS
+  #define METH_STACKLESS 0
+#endif
+#if PY_VERSION_HEX <= 0x030700A3 || !defined(METH_FASTCALL)
+  #ifndef METH_FASTCALL
+     #define METH_FASTCALL 0x80
+  #endif
+  typedef PyObject *(*__Pyx_PyCFunctionFast) (PyObject *self, PyObject *const *args, Py_ssize_t nargs);
+  typedef PyObject *(*__Pyx_PyCFunctionFastWithKeywords) (PyObject *self, PyObject *const *args,
+                                                          Py_ssize_t nargs, PyObject *kwnames);
+#else
+  #define __Pyx_PyCFunctionFast _PyCFunctionFast
+  #define __Pyx_PyCFunctionFastWithKeywords _PyCFunctionFastWithKeywords
+#endif
+#if CYTHON_FAST_PYCCALL
+#define __Pyx_PyFastCFunction_Check(func)\
+    ((PyCFunction_Check(func) && (METH_FASTCALL == (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS | METH_STACKLESS)))))
+#else
+#define __Pyx_PyFastCFunction_Check(func) 0
+#endif
+#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc)
+  #define PyObject_Malloc(s)   PyMem_Malloc(s)
+  #define PyObject_Free(p)     PyMem_Free(p)
+  #define PyObject_Realloc(p)  PyMem_Realloc(p)
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030400A1
+  #define PyMem_RawMalloc(n)           PyMem_Malloc(n)
+  #define PyMem_RawRealloc(p, n)       PyMem_Realloc(p, n)
+  #define PyMem_RawFree(p)             PyMem_Free(p)
+#endif
+#if CYTHON_COMPILING_IN_PYSTON
+  #define __Pyx_PyCode_HasFreeVars(co)  PyCode_HasFreeVars(co)
+  #define __Pyx_PyFrame_SetLineNumber(frame, lineno) PyFrame_SetLineNumber(frame, lineno)
+#else
+  #define __Pyx_PyCode_HasFreeVars(co)  (PyCode_GetNumFree(co) > 0)
+  #define __Pyx_PyFrame_SetLineNumber(frame, lineno)  (frame)->f_lineno = (lineno)
+#endif
+#if !CYTHON_FAST_THREAD_STATE || PY_VERSION_HEX < 0x02070000
+  #define __Pyx_PyThreadState_Current PyThreadState_GET()
+#elif PY_VERSION_HEX >= 0x03060000
+  #define __Pyx_PyThreadState_Current _PyThreadState_UncheckedGet()
+#elif PY_VERSION_HEX >= 0x03000000
+  #define __Pyx_PyThreadState_Current PyThreadState_GET()
+#else
+  #define __Pyx_PyThreadState_Current _PyThreadState_Current
+#endif
+#if PY_VERSION_HEX < 0x030700A2 && !defined(PyThread_tss_create) && !defined(Py_tss_NEEDS_INIT)
+#include "pythread.h"
+#define Py_tss_NEEDS_INIT 0
+typedef int Py_tss_t;
+static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
+  *key = PyThread_create_key();
+  return 0;
+}
+static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) {
+  Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t));
+  *key = Py_tss_NEEDS_INIT;
+  return key;
+}
+static CYTHON_INLINE void PyThread_tss_free(Py_tss_t *key) {
+  PyObject_Free(key);
+}
+static CYTHON_INLINE int PyThread_tss_is_created(Py_tss_t *key) {
+  return *key != Py_tss_NEEDS_INIT;
+}
+static CYTHON_INLINE void PyThread_tss_delete(Py_tss_t *key) {
+  PyThread_delete_key(*key);
+  *key = Py_tss_NEEDS_INIT;
+}
+static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
+  return PyThread_set_key_value(*key, value);
+}
+static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
+  return PyThread_get_key_value(*key);
+}
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
+#define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
+#else
+#define __Pyx_PyDict_NewPresized(n)  PyDict_New()
+#endif
+#if PY_MAJOR_VERSION >= 3 || CYTHON_FUTURE_DIVISION
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
+#else
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1 && CYTHON_USE_UNICODE_INTERNALS
+#define __Pyx_PyDict_GetItemStr(dict, name)  _PyDict_GetItem_KnownHash(dict, name, ((PyASCIIObject *) name)->hash)
+#else
+#define __Pyx_PyDict_GetItemStr(dict, name)  PyDict_GetItem(dict, name)
+#endif
+#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
+  #define CYTHON_PEP393_ENABLED 1
+  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ?\
+                                              0 : _PyUnicode_Ready((PyObject *)(op)))
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
+  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   PyUnicode_MAX_CHAR_VALUE(u)
+  #define __Pyx_PyUnicode_KIND(u)         PyUnicode_KIND(u)
+  #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
+  #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
+  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, ch)
+  #if defined(PyUnicode_IS_READY) && defined(PyUnicode_GET_SIZE)
+  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
+  #else
+  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_LENGTH(u))
+  #endif
+#else
+  #define CYTHON_PEP393_ENABLED 0
+  #define PyUnicode_1BYTE_KIND  1
+  #define PyUnicode_2BYTE_KIND  2
+  #define PyUnicode_4BYTE_KIND  4
+  #define __Pyx_PyUnicode_READY(op)       (0)
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
+  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   ((sizeof(Py_UNICODE) == 2) ? 65535 : 1114111)
+  #define __Pyx_PyUnicode_KIND(u)         (sizeof(Py_UNICODE))
+  #define __Pyx_PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
+  #define __Pyx_PyUnicode_READ(k, d, i)   ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
+  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  (((void)(k)), ((Py_UNICODE*)d)[i] = ch)
+  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_SIZE(u))
+#endif
+#if CYTHON_COMPILING_IN_PYPY
+  #define __Pyx_PyUnicode_Concat(a, b)      PyNumber_Add(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  PyNumber_Add(a, b)
+#else
+  #define __Pyx_PyUnicode_Concat(a, b)      PyUnicode_Concat(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ?\
+      PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b))
+#endif
+#if CYTHON_COMPILING_IN_PYPY && !defined(PyUnicode_Contains)
+  #define PyUnicode_Contains(u, s)  PySequence_Contains(u, s)
+#endif
+#if CYTHON_COMPILING_IN_PYPY && !defined(PyByteArray_Check)
+  #define PyByteArray_Check(obj)  PyObject_TypeCheck(obj, &PyByteArray_Type)
+#endif
+#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Format)
+  #define PyObject_Format(obj, fmt)  PyObject_CallMethod(obj, "__format__", "O", fmt)
+#endif
+#define __Pyx_PyString_FormatSafe(a, b)   ((unlikely((a) == Py_None || (PyString_Check(b) && !PyString_CheckExact(b)))) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b))
+#define __Pyx_PyUnicode_FormatSafe(a, b)  ((unlikely((a) == Py_None || (PyUnicode_Check(b) && !PyUnicode_CheckExact(b)))) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b))
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyString_Format(a, b)  PyUnicode_Format(a, b)
+#else
+  #define __Pyx_PyString_Format(a, b)  PyString_Format(a, b)
+#endif
+#if PY_MAJOR_VERSION < 3 && !defined(PyObject_ASCII)
+  #define PyObject_ASCII(o)            PyObject_Repr(o)
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBaseString_Type            PyUnicode_Type
+  #define PyStringObject               PyUnicodeObject
+  #define PyString_Type                PyUnicode_Type
+  #define PyString_Check               PyUnicode_Check
+  #define PyString_CheckExact          PyUnicode_CheckExact
+#ifndef PyObject_Unicode
+  #define PyObject_Unicode             PyObject_Str
+#endif
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
+  #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
+#else
+  #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj))
+  #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj))
+#endif
+#ifndef PySet_CheckExact
+  #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
+#endif
+#if PY_VERSION_HEX >= 0x030900A4
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_SET_REFCNT(obj, refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SET_SIZE(obj, size)
+#else
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_REFCNT(obj) = (refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SIZE(obj) = (size)
+#endif
+#if CYTHON_ASSUME_SAFE_MACROS
+  #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
+#else
+  #define __Pyx_PySequence_SIZE(seq)  PySequence_Size(seq)
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyIntObject                  PyLongObject
+  #define PyInt_Type                   PyLong_Type
+  #define PyInt_Check(op)              PyLong_Check(op)
+  #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
+  #define PyInt_FromString             PyLong_FromString
+  #define PyInt_FromUnicode            PyLong_FromUnicode
+  #define PyInt_FromLong               PyLong_FromLong
+  #define PyInt_FromSize_t             PyLong_FromSize_t
+  #define PyInt_FromSsize_t            PyLong_FromSsize_t
+  #define PyInt_AsLong                 PyLong_AsLong
+  #define PyInt_AS_LONG                PyLong_AS_LONG
+  #define PyInt_AsSsize_t              PyLong_AsSsize_t
+  #define PyInt_AsUnsignedLongMask     PyLong_AsUnsignedLongMask
+  #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
+  #define PyNumber_Int                 PyNumber_Long
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBoolObject                 PyLongObject
+#endif
+#if PY_MAJOR_VERSION >= 3 && CYTHON_COMPILING_IN_PYPY
+  #ifndef PyUnicode_InternFromString
+    #define PyUnicode_InternFromString(s) PyUnicode_FromString(s)
+  #endif
+#endif
+#if PY_VERSION_HEX < 0x030200A4
+  typedef long Py_hash_t;
+  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
+#else
+  #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? ((void)(klass), PyMethod_New(func, self)) : __Pyx_NewRef(func))
+#else
+  #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
+#endif
+#if CYTHON_USE_ASYNC_SLOTS
+  #if PY_VERSION_HEX >= 0x030500B1
+    #define __Pyx_PyAsyncMethodsStruct PyAsyncMethods
+    #define __Pyx_PyType_AsAsync(obj) (Py_TYPE(obj)->tp_as_async)
+  #else
+    #define __Pyx_PyType_AsAsync(obj) ((__Pyx_PyAsyncMethodsStruct*) (Py_TYPE(obj)->tp_reserved))
+  #endif
+#else
+  #define __Pyx_PyType_AsAsync(obj) NULL
+#endif
+#ifndef __Pyx_PyAsyncMethodsStruct
+    typedef struct {
+        unaryfunc am_await;
+        unaryfunc am_aiter;
+        unaryfunc am_anext;
+    } __Pyx_PyAsyncMethodsStruct;
+#endif
+
+#if defined(WIN32) || defined(MS_WINDOWS)
+  #define _USE_MATH_DEFINES
+#endif
+#include <math.h>
+#ifdef NAN
+#define __PYX_NAN() ((float) NAN)
+#else
+static CYTHON_INLINE float __PYX_NAN() {
+  float value;
+  memset(&value, 0xFF, sizeof(value));
+  return value;
+}
+#endif
+#if defined(__CYGWIN__) && defined(_LDBL_EQ_DBL)
+#define __Pyx_truncl trunc
+#else
+#define __Pyx_truncl truncl
+#endif
+
+#define __PYX_MARK_ERR_POS(f_index, lineno) \
+    { __pyx_filename = __pyx_f[f_index]; (void)__pyx_filename; __pyx_lineno = lineno; (void)__pyx_lineno; __pyx_clineno = __LINE__; (void)__pyx_clineno; }
+#define __PYX_ERR(f_index, lineno, Ln_error) \
+    { __PYX_MARK_ERR_POS(f_index, lineno) goto Ln_error; }
+
+#ifndef __PYX_EXTERN_C
+  #ifdef __cplusplus
+    #define __PYX_EXTERN_C extern "C"
+  #else
+    #define __PYX_EXTERN_C extern
+  #endif
+#endif
+
+#define __PYX_HAVE__yarl___quoting_c
+#define __PYX_HAVE_API__yarl___quoting_c
+/* Early includes */
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
+#ifdef _OPENMP
+#include <omp.h>
+#endif /* _OPENMP */
+
+#if defined(PYREX_WITHOUT_ASSERTIONS) && !defined(CYTHON_WITHOUT_ASSERTIONS)
+#define CYTHON_WITHOUT_ASSERTIONS
+#endif
+
+typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* encoding;
+                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
+
+#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_UTF8 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT (PY_MAJOR_VERSION >= 3 && __PYX_DEFAULT_STRING_ENCODING_IS_UTF8)
+#define __PYX_DEFAULT_STRING_ENCODING ""
+#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
+#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#define __Pyx_uchar_cast(c) ((unsigned char)c)
+#define __Pyx_long_cast(x) ((long)x)
+#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (\
+    (sizeof(type) < sizeof(Py_ssize_t))  ||\
+    (sizeof(type) > sizeof(Py_ssize_t) &&\
+          likely(v < (type)PY_SSIZE_T_MAX ||\
+                 v == (type)PY_SSIZE_T_MAX)  &&\
+          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||\
+                                v == (type)PY_SSIZE_T_MIN)))  ||\
+    (sizeof(type) == sizeof(Py_ssize_t) &&\
+          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||\
+                               v == (type)PY_SSIZE_T_MAX)))  )
+static CYTHON_INLINE int __Pyx_is_valid_index(Py_ssize_t i, Py_ssize_t limit) {
+    return (size_t) i < (size_t) limit;
+}
+#if defined (__cplusplus) && __cplusplus >= 201103L
+    #include <cstdlib>
+    #define __Pyx_sst_abs(value) std::abs(value)
+#elif SIZEOF_INT >= SIZEOF_SIZE_T
+    #define __Pyx_sst_abs(value) abs(value)
+#elif SIZEOF_LONG >= SIZEOF_SIZE_T
+    #define __Pyx_sst_abs(value) labs(value)
+#elif defined (_MSC_VER)
+    #define __Pyx_sst_abs(value) ((Py_ssize_t)_abs64(value))
+#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define __Pyx_sst_abs(value) llabs(value)
+#elif defined (__GNUC__)
+    #define __Pyx_sst_abs(value) __builtin_llabs(value)
+#else
+    #define __Pyx_sst_abs(value) ((value<0) ? -value : value)
+#endif
+static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject*);
+static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
+#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
+#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
+#define __Pyx_PyBytes_FromString        PyBytes_FromString
+#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
+#if PY_MAJOR_VERSION < 3
+    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#else
+    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
+#endif
+#define __Pyx_PyBytes_AsWritableString(s)     ((char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsWritableSString(s)    ((signed char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsWritableUString(s)    ((unsigned char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsString(s)     ((const char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsSString(s)    ((const signed char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsUString(s)    ((const unsigned char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyObject_AsWritableString(s)    ((char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsWritableSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsWritableUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsSString(s)    ((const signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsUString(s)    ((const unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_FromCString(s)  __Pyx_PyObject_FromString((const char*)s)
+#define __Pyx_PyBytes_FromCString(s)   __Pyx_PyBytes_FromString((const char*)s)
+#define __Pyx_PyByteArray_FromCString(s)   __Pyx_PyByteArray_FromString((const char*)s)
+#define __Pyx_PyStr_FromCString(s)     __Pyx_PyStr_FromString((const char*)s)
+#define __Pyx_PyUnicode_FromCString(s) __Pyx_PyUnicode_FromString((const char*)s)
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
+    const Py_UNICODE *u_end = u;
+    while (*u_end++) ;
+    return (size_t)(u_end - u - 1);
+}
+#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
+#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
+#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
+#define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
+#define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
+static CYTHON_INLINE int __Pyx_PyObject_IsTrueAndDecref(PyObject*);
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
+#define __Pyx_PySequence_Tuple(obj)\
+    (likely(PyTuple_CheckExact(obj)) ? __Pyx_NewRef(obj) : PySequence_Tuple(obj))
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
+#if CYTHON_ASSUME_SAFE_MACROS
+#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
+#else
+#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
+#endif
+#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
+#if PY_MAJOR_VERSION >= 3
+#define __Pyx_PyNumber_Int(x) (PyLong_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Long(x))
+#else
+#define __Pyx_PyNumber_Int(x) (PyInt_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Int(x))
+#endif
+#define __Pyx_PyNumber_Float(x) (PyFloat_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Float(x))
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+static int __Pyx_sys_getdefaultencoding_not_ascii;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    PyObject* ascii_chars_u = NULL;
+    PyObject* ascii_chars_b = NULL;
+    const char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    if (strcmp(default_encoding_c, "ascii") == 0) {
+        __Pyx_sys_getdefaultencoding_not_ascii = 0;
+    } else {
+        char ascii_chars[128];
+        int c;
+        for (c = 0; c < 128; c++) {
+            ascii_chars[c] = c;
+        }
+        __Pyx_sys_getdefaultencoding_not_ascii = 1;
+        ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
+        if (!ascii_chars_u) goto bad;
+        ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL);
+        if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) {
+            PyErr_Format(
+                PyExc_ValueError,
+                "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.",
+                default_encoding_c);
+            goto bad;
+        }
+        Py_DECREF(ascii_chars_u);
+        Py_DECREF(ascii_chars_b);
+    }
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    Py_XDECREF(ascii_chars_u);
+    Py_XDECREF(ascii_chars_b);
+    return -1;
+}
+#endif
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL)
+#else
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+static char* __PYX_DEFAULT_STRING_ENCODING;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c) + 1);
+    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
+    strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c);
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    return -1;
+}
+#endif
+#endif
+
+
+/* Test for GCC > 2.95 */
+#if defined(__GNUC__)     && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))
+  #define likely(x)   __builtin_expect(!!(x), 1)
+  #define unlikely(x) __builtin_expect(!!(x), 0)
+#else /* !__GNUC__ or GCC < 2.95 */
+  #define likely(x)   (x)
+  #define unlikely(x) (x)
+#endif /* __GNUC__ */
+static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }
+
+static PyObject *__pyx_m = NULL;
+static PyObject *__pyx_d;
+static PyObject *__pyx_b;
+static PyObject *__pyx_cython_runtime = NULL;
+static PyObject *__pyx_empty_tuple;
+static PyObject *__pyx_empty_bytes;
+static PyObject *__pyx_empty_unicode;
+static int __pyx_lineno;
+static int __pyx_clineno = 0;
+static const char * __pyx_cfilenm= __FILE__;
+static const char *__pyx_filename;
+
+
+static const char *__pyx_f[] = {
+  "yarl\\_quoting_c.pyx",
+  "stringsource",
+  "type.pxd",
+};
+
+/*--- Type declarations ---*/
+struct __pyx_obj_4yarl_10_quoting_c__Quoter;
+struct __pyx_obj_4yarl_10_quoting_c__Unquoter;
+struct __pyx_t_4yarl_10_quoting_c_Writer;
+
+/* "yarl/_quoting_c.pyx":76
+ * # ----------------- writer ---------------------------
+ * 
+ * cdef struct Writer:             # <<<<<<<<<<<<<<
+ *     char *buf
+ *     Py_ssize_t size
+ */
+struct __pyx_t_4yarl_10_quoting_c_Writer {
+  char *buf;
+  Py_ssize_t size;
+  Py_ssize_t pos;
+  int changed;
+};
+
+/* "yarl/_quoting_c.pyx":186
+ * 
+ * 
+ * cdef class _Quoter:             # <<<<<<<<<<<<<<
+ *     cdef bint _qs
+ *     cdef bint _requote
+ */
+struct __pyx_obj_4yarl_10_quoting_c__Quoter {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_4yarl_10_quoting_c__Quoter *__pyx_vtab;
+  int _qs;
+  int _requote;
+  uint8_t _safe_table[16];
+  uint8_t _protected_table[16];
+};
+
+
+/* "yarl/_quoting_c.pyx":305
+ * 
+ * 
+ * cdef class _Unquoter:             # <<<<<<<<<<<<<<
+ *     cdef str _unsafe
+ *     cdef bint _qs
+ */
+struct __pyx_obj_4yarl_10_quoting_c__Unquoter {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_4yarl_10_quoting_c__Unquoter *__pyx_vtab;
+  PyObject *_unsafe;
+  int _qs;
+  struct __pyx_obj_4yarl_10_quoting_c__Quoter *_quoter;
+  struct __pyx_obj_4yarl_10_quoting_c__Quoter *_qs_quoter;
+};
+
+
+
+/* "yarl/_quoting_c.pyx":186
+ * 
+ * 
+ * cdef class _Quoter:             # <<<<<<<<<<<<<<
+ *     cdef bint _qs
+ *     cdef bint _requote
+ */
+
+struct __pyx_vtabstruct_4yarl_10_quoting_c__Quoter {
+  PyObject *(*_do_quote)(struct __pyx_obj_4yarl_10_quoting_c__Quoter *, PyObject *, struct __pyx_t_4yarl_10_quoting_c_Writer *);
+  int (*_write)(struct __pyx_obj_4yarl_10_quoting_c__Quoter *, struct __pyx_t_4yarl_10_quoting_c_Writer *, Py_UCS4);
+};
+static struct __pyx_vtabstruct_4yarl_10_quoting_c__Quoter *__pyx_vtabptr_4yarl_10_quoting_c__Quoter;
+static CYTHON_INLINE int __pyx_f_4yarl_10_quoting_c_7_Quoter__write(struct __pyx_obj_4yarl_10_quoting_c__Quoter *, struct __pyx_t_4yarl_10_quoting_c_Writer *, Py_UCS4);
+
+
+/* "yarl/_quoting_c.pyx":305
+ * 
+ * 
+ * cdef class _Unquoter:             # <<<<<<<<<<<<<<
+ *     cdef str _unsafe
+ *     cdef bint _qs
+ */
+
+struct __pyx_vtabstruct_4yarl_10_quoting_c__Unquoter {
+  PyObject *(*_do_unquote)(struct __pyx_obj_4yarl_10_quoting_c__Unquoter *, PyObject *);
+};
+static struct __pyx_vtabstruct_4yarl_10_quoting_c__Unquoter *__pyx_vtabptr_4yarl_10_quoting_c__Unquoter;
+
+/* --- Runtime support code (head) --- */
+/* Refnanny.proto */
+#ifndef CYTHON_REFNANNY
+  #define CYTHON_REFNANNY 0
+#endif
+#if CYTHON_REFNANNY
+  typedef struct {
+    void (*INCREF)(void*, PyObject*, int);
+    void (*DECREF)(void*, PyObject*, int);
+    void (*GOTREF)(void*, PyObject*, int);
+    void (*GIVEREF)(void*, PyObject*, int);
+    void* (*SetupContext)(const char*, int, const char*);
+    void (*FinishContext)(void**);
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+              PyGILState_Release(__pyx_gilstate_save);\
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+#else
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)\
+          __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__)
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+  #define __Pyx_RefNannyFinishContext()\
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+  #define __Pyx_INCREF(r)  __Pyx_RefNanny->INCREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_DECREF(r)  __Pyx_RefNanny->DECREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_GOTREF(r)  __Pyx_RefNanny->GOTREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_GIVEREF(r) __Pyx_RefNanny->GIVEREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_XINCREF(r)  do { if((r) != NULL) {__Pyx_INCREF(r); }} while(0)
+  #define __Pyx_XDECREF(r)  do { if((r) != NULL) {__Pyx_DECREF(r); }} while(0)
+  #define __Pyx_XGOTREF(r)  do { if((r) != NULL) {__Pyx_GOTREF(r); }} while(0)
+  #define __Pyx_XGIVEREF(r) do { if((r) != NULL) {__Pyx_GIVEREF(r);}} while(0)
+#else
+  #define __Pyx_RefNannyDeclarations
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)
+  #define __Pyx_RefNannyFinishContext()
+  #define __Pyx_INCREF(r) Py_INCREF(r)
+  #define __Pyx_DECREF(r) Py_DECREF(r)
+  #define __Pyx_GOTREF(r)
+  #define __Pyx_GIVEREF(r)
+  #define __Pyx_XINCREF(r) Py_XINCREF(r)
+  #define __Pyx_XDECREF(r) Py_XDECREF(r)
+  #define __Pyx_XGOTREF(r)
+  #define __Pyx_XGIVEREF(r)
+#endif
+#define __Pyx_XDECREF_SET(r, v) do {\
+        PyObject *tmp = (PyObject *) r;\
+        r = v; __Pyx_XDECREF(tmp);\
+    } while (0)
+#define __Pyx_DECREF_SET(r, v) do {\
+        PyObject *tmp = (PyObject *) r;\
+        r = v; __Pyx_DECREF(tmp);\
+    } while (0)
+#define __Pyx_CLEAR(r)    do { PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);} while(0)
+#define __Pyx_XCLEAR(r)   do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0)
+
+/* PyObjectGetAttrStr.proto */
+#if CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name);
+#else
+#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
+#endif
+
+/* GetBuiltinName.proto */
+static PyObject *__Pyx_GetBuiltinName(PyObject *name);
+
+/* PyThreadStateGet.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyThreadState_declare  PyThreadState *__pyx_tstate;
+#define __Pyx_PyThreadState_assign  __pyx_tstate = __Pyx_PyThreadState_Current;
+#define __Pyx_PyErr_Occurred()  __pyx_tstate->curexc_type
+#else
+#define __Pyx_PyThreadState_declare
+#define __Pyx_PyThreadState_assign
+#define __Pyx_PyErr_Occurred()  PyErr_Occurred()
+#endif
+
+/* PyErrFetchRestore.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyErr_Clear() __Pyx_ErrRestore(NULL, NULL, NULL)
+#define __Pyx_ErrRestoreWithState(type, value, tb)  __Pyx_ErrRestoreInState(PyThreadState_GET(), type, value, tb)
+#define __Pyx_ErrFetchWithState(type, value, tb)    __Pyx_ErrFetchInState(PyThreadState_GET(), type, value, tb)
+#define __Pyx_ErrRestore(type, value, tb)  __Pyx_ErrRestoreInState(__pyx_tstate, type, value, tb)
+#define __Pyx_ErrFetch(type, value, tb)    __Pyx_ErrFetchInState(__pyx_tstate, type, value, tb)
+static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb);
+static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_PyErr_SetNone(exc) (Py_INCREF(exc), __Pyx_ErrRestore((exc), NULL, NULL))
+#else
+#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
+#endif
+#else
+#define __Pyx_PyErr_Clear() PyErr_Clear()
+#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
+#define __Pyx_ErrRestoreWithState(type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetchWithState(type, value, tb)  PyErr_Fetch(type, value, tb)
+#define __Pyx_ErrRestoreInState(tstate, type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetchInState(tstate, type, value, tb)  PyErr_Fetch(type, value, tb)
+#define __Pyx_ErrRestore(type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetch(type, value, tb)  PyErr_Fetch(type, value, tb)
+#endif
+
+/* WriteUnraisableException.proto */
+static void __Pyx_WriteUnraisable(const char *name, int clineno,
+                                  int lineno, const char *filename,
+                                  int full_traceback, int nogil);
+
+/* RaiseDoubleKeywords.proto */
+static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);
+
+/* ParseKeywords.proto */
+static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\
+    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\
+    const char* function_name);
+
+/* RaiseArgTupleInvalid.proto */
+static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
+    Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found);
+
+/* ArgTypeTest.proto */
+#define __Pyx_ArgTypeTest(obj, type, none_allowed, name, exact)\
+    ((likely((Py_TYPE(obj) == type) | (none_allowed && (obj == Py_None)))) ? 1 :\
+        __Pyx__ArgTypeTest(obj, type, name, exact))
+static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact);
+
+/* unicode_iter.proto */
+static CYTHON_INLINE int __Pyx_init_unicode_iteration(
+    PyObject* ustring, Py_ssize_t *length, void** data, int *kind);
+
+/* PyObjectCall.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
+#else
+#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
+#endif
+
+/* RaiseException.proto */
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
+
+/* PyCFunctionFastCall.proto */
+#if CYTHON_FAST_PYCCALL
+static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
+#else
+#define __Pyx_PyCFunction_FastCall(func, args, nargs)  (assert(0), NULL)
+#endif
+
+/* PyFunctionFastCall.proto */
+#if CYTHON_FAST_PYCALL
+#define __Pyx_PyFunction_FastCall(func, args, nargs)\
+    __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
+#if 1 || PY_VERSION_HEX < 0x030600B1
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs);
+#else
+#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
+#endif
+#define __Pyx_BUILD_ASSERT_EXPR(cond)\
+    (sizeof(char [1 - 2*!(cond)]) - 1)
+#ifndef Py_MEMBER_SIZE
+#define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
+#endif
+  static size_t __pyx_pyframe_localsplus_offset = 0;
+  #include "frameobject.h"
+  #define __Pxy_PyFrame_Initialize_Offsets()\
+    ((void)__Pyx_BUILD_ASSERT_EXPR(sizeof(PyFrameObject) == offsetof(PyFrameObject, f_localsplus) + Py_MEMBER_SIZE(PyFrameObject, f_localsplus)),\
+     (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus)))
+  #define __Pyx_PyFrame_GetLocalsplus(frame)\
+    (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset))
+#endif
+
+/* PyObjectCallMethO.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
+#endif
+
+/* PyObjectCallOneArg.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
+
+/* GetException.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_GetException(type, value, tb)  __Pyx__GetException(__pyx_tstate, type, value, tb)
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
+#else
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
+#endif
+
+/* SwapException.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_ExceptionSwap(type, value, tb)  __Pyx__ExceptionSwap(__pyx_tstate, type, value, tb)
+static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
+#else
+static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb);
+#endif
+
+/* GetTopmostException.proto */
+#if CYTHON_USE_EXC_INFO_STACK
+static _PyErr_StackItem * __Pyx_PyErr_GetTopmostException(PyThreadState *tstate);
+#endif
+
+/* SaveResetException.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_ExceptionSave(type, value, tb)  __Pyx__ExceptionSave(__pyx_tstate, type, value, tb)
+static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
+#define __Pyx_ExceptionReset(type, value, tb)  __Pyx__ExceptionReset(__pyx_tstate, type, value, tb)
+static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb);
+#else
+#define __Pyx_ExceptionSave(type, value, tb)   PyErr_GetExcInfo(type, value, tb)
+#define __Pyx_ExceptionReset(type, value, tb)  PyErr_SetExcInfo(type, value, tb)
+#endif
+
+/* ReRaiseException.proto */
+static CYTHON_INLINE void __Pyx_ReraiseException(void);
+
+/* PyErrExceptionMatches.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyErr_ExceptionMatches(err) __Pyx_PyErr_ExceptionMatchesInState(__pyx_tstate, err)
+static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err);
+#else
+#define __Pyx_PyErr_ExceptionMatches(err)  PyErr_ExceptionMatches(err)
+#endif
+
+/* GetAttr.proto */
+static CYTHON_INLINE PyObject *__Pyx_GetAttr(PyObject *, PyObject *);
+
+/* GetAttr3.proto */
+static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *, PyObject *, PyObject *);
+
+/* PyDictVersioning.proto */
+#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+#define __PYX_DICT_VERSION_INIT  ((PY_UINT64_T) -1)
+#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
+    (version_var) = __PYX_GET_DICT_VERSION(dict);\
+    (cache_var) = (value);
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
+    static PY_UINT64_T __pyx_dict_version = 0;\
+    static PyObject *__pyx_dict_cached_value = NULL;\
+    if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
+        (VAR) = __pyx_dict_cached_value;\
+    } else {\
+        (VAR) = __pyx_dict_cached_value = (LOOKUP);\
+        __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
+    }\
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj);
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj);
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version);
+#else
+#define __PYX_GET_DICT_VERSION(dict)  (0)
+#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
+#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
+#endif
+
+/* GetModuleGlobalName.proto */
+#if CYTHON_USE_DICT_VERSIONS
+#define __Pyx_GetModuleGlobalName(var, name)  {\
+    static PY_UINT64_T __pyx_dict_version = 0;\
+    static PyObject *__pyx_dict_cached_value = NULL;\
+    (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\
+        (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\
+        __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
+}
+#define __Pyx_GetModuleGlobalNameUncached(var, name)  {\
+    PY_UINT64_T __pyx_dict_version;\
+    PyObject *__pyx_dict_cached_value;\
+    (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
+}
+static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value);
+#else
+#define __Pyx_GetModuleGlobalName(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
+#define __Pyx_GetModuleGlobalNameUncached(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
+static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
+#endif
+
+/* PyObjectCallNoArg.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func);
+#else
+#define __Pyx_PyObject_CallNoArg(func) __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL)
+#endif
+
+/* PyObjectCall2Args.proto */
+static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2);
+
+/* PyObjectGetMethod.proto */
+static int __Pyx_PyObject_GetMethod(PyObject *obj, PyObject *name, PyObject **method);
+
+/* PyObjectCallMethod1.proto */
+static PyObject* __Pyx_PyObject_CallMethod1(PyObject* obj, PyObject* method_name, PyObject* arg);
+
+/* ByteArrayAppend.proto */
+static CYTHON_INLINE int __Pyx_PyByteArray_Append(PyObject* bytearray, int value);
+
+/* ByteArrayAppendObject.proto */
+static CYTHON_INLINE int __Pyx_PyByteArray_AppendObject(PyObject* bytearray, PyObject* value);
+
+/* PyUnicode_Substring.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_Substring(
+            PyObject* text, Py_ssize_t start, Py_ssize_t stop);
+
+/* decode_c_string_utf16.proto */
+static CYTHON_INLINE PyObject *__Pyx_PyUnicode_DecodeUTF16(const char *s, Py_ssize_t size, const char *errors) {
+    int byteorder = 0;
+    return PyUnicode_DecodeUTF16(s, size, errors, &byteorder);
+}
+static CYTHON_INLINE PyObject *__Pyx_PyUnicode_DecodeUTF16LE(const char *s, Py_ssize_t size, const char *errors) {
+    int byteorder = -1;
+    return PyUnicode_DecodeUTF16(s, size, errors, &byteorder);
+}
+static CYTHON_INLINE PyObject *__Pyx_PyUnicode_DecodeUTF16BE(const char *s, Py_ssize_t size, const char *errors) {
+    int byteorder = 1;
+    return PyUnicode_DecodeUTF16(s, size, errors, &byteorder);
+}
+
+/* decode_c_bytes.proto */
+static CYTHON_INLINE PyObject* __Pyx_decode_c_bytes(
+         const char* cstring, Py_ssize_t length, Py_ssize_t start, Py_ssize_t stop,
+         const char* encoding, const char* errors,
+         PyObject* (*decode_func)(const char *s, Py_ssize_t size, const char *errors));
+
+/* decode_bytearray.proto */
+static CYTHON_INLINE PyObject* __Pyx_decode_bytearray(
+         PyObject* string, Py_ssize_t start, Py_ssize_t stop,
+         const char* encoding, const char* errors,
+         PyObject* (*decode_func)(const char *s, Py_ssize_t size, const char *errors)) {
+    return __Pyx_decode_c_bytes(
+        PyByteArray_AS_STRING(string), PyByteArray_GET_SIZE(string),
+        start, stop, encoding, errors, decode_func);
+}
+
+/* PyUnicodeContains.proto */
+static CYTHON_INLINE int __Pyx_PyUnicode_ContainsTF(PyObject* substring, PyObject* text, int eq) {
+    int result = PyUnicode_Contains(text, substring);
+    return unlikely(result < 0) ? result : (result == (eq == Py_EQ));
+}
+
+/* ListAppend.proto */
+#if CYTHON_USE_PYLIST_INTERNALS && CYTHON_ASSUME_SAFE_MACROS
+static CYTHON_INLINE int __Pyx_PyList_Append(PyObject* list, PyObject* x) {
+    PyListObject* L = (PyListObject*) list;
+    Py_ssize_t len = Py_SIZE(list);
+    if (likely(L->allocated > len) & likely(len > (L->allocated >> 1))) {
+        Py_INCREF(x);
+        PyList_SET_ITEM(list, len, x);
+        __Pyx_SET_SIZE(list, len + 1);
+        return 0;
+    }
+    return PyList_Append(list, x);
+}
+#else
+#define __Pyx_PyList_Append(L,x) PyList_Append(L,x)
+#endif
+
+/* SliceObject.proto */
+#define __Pyx_PyObject_DelSlice(obj, cstart, cstop, py_start, py_stop, py_slice, has_cstart, has_cstop, wraparound)\
+    __Pyx_PyObject_SetSlice(obj, (PyObject*)NULL, cstart, cstop, py_start, py_stop, py_slice, has_cstart, has_cstop, wraparound)
+static CYTHON_INLINE int __Pyx_PyObject_SetSlice(
+        PyObject* obj, PyObject* value, Py_ssize_t cstart, Py_ssize_t cstop,
+        PyObject** py_start, PyObject** py_stop, PyObject** py_slice,
+        int has_cstart, int has_cstop, int wraparound);
+
+/* IncludeStringH.proto */
+#include <string.h>
+
+/* BytesEquals.proto */
+static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals);
+
+/* UnicodeEquals.proto */
+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals);
+
+/* UnicodeAsUCS4.proto */
+static CYTHON_INLINE Py_UCS4 __Pyx_PyUnicode_AsPy_UCS4(PyObject*);
+
+/* object_ord.proto */
+#if PY_MAJOR_VERSION >= 3
+#define __Pyx_PyObject_Ord(c)\
+    (likely(PyUnicode_Check(c)) ? (long)__Pyx_PyUnicode_AsPy_UCS4(c) : __Pyx__PyObject_Ord(c))
+#else
+#define __Pyx_PyObject_Ord(c) __Pyx__PyObject_Ord(c)
+#endif
+static long __Pyx__PyObject_Ord(PyObject* c);
+
+/* SliceObject.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetSlice(
+        PyObject* obj, Py_ssize_t cstart, Py_ssize_t cstop,
+        PyObject** py_start, PyObject** py_stop, PyObject** py_slice,
+        int has_cstart, int has_cstop, int wraparound);
+
+/* Import.proto */
+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level);
+
+/* ImportFrom.proto */
+static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name);
+
+/* GetItemInt.proto */
+#define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
+    __Pyx_GetItemInt_Fast(o, (Py_ssize_t)i, is_list, wraparound, boundscheck) :\
+    (is_list ? (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL) :\
+               __Pyx_GetItemInt_Generic(o, to_py_func(i))))
+#define __Pyx_GetItemInt_List(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
+    __Pyx_GetItemInt_List_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) :\
+    (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+#define __Pyx_GetItemInt_Tuple(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
+    __Pyx_GetItemInt_Tuple_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) :\
+    (PyErr_SetString(PyExc_IndexError, "tuple index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j);
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck);
+
+/* HasAttr.proto */
+static CYTHON_INLINE int __Pyx_HasAttr(PyObject *, PyObject *);
+
+/* ExtTypeTest.proto */
+static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type);
+
+/* PyObject_GenericGetAttrNoDict.proto */
+#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name);
+#else
+#define __Pyx_PyObject_GenericGetAttrNoDict PyObject_GenericGetAttr
+#endif
+
+/* PyObject_GenericGetAttr.proto */
+#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
+static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_name);
+#else
+#define __Pyx_PyObject_GenericGetAttr PyObject_GenericGetAttr
+#endif
+
+/* SetVTable.proto */
+static int __Pyx_SetVtable(PyObject *dict, void *vtable);
+
+/* PyObjectGetAttrStrNoError.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name);
+
+/* SetupReduce.proto */
+static int __Pyx_setup_reduce(PyObject* type_obj);
+
+/* TypeImport.proto */
+#ifndef __PYX_HAVE_RT_ImportType_proto
+#define __PYX_HAVE_RT_ImportType_proto
+enum __Pyx_ImportType_CheckSize {
+   __Pyx_ImportType_CheckSize_Error = 0,
+   __Pyx_ImportType_CheckSize_Warn = 1,
+   __Pyx_ImportType_CheckSize_Ignore = 2
+};
+static PyTypeObject *__Pyx_ImportType(PyObject* module, const char *module_name, const char *class_name, size_t size, enum __Pyx_ImportType_CheckSize check_size);
+#endif
+
+/* CLineInTraceback.proto */
+#ifdef CYTHON_CLINE_IN_TRACEBACK
+#define __Pyx_CLineForTraceback(tstate, c_line)  (((CYTHON_CLINE_IN_TRACEBACK)) ? c_line : 0)
+#else
+static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line);
+#endif
+
+/* CodeObjectCache.proto */
+typedef struct {
+    PyCodeObject* code_object;
+    int code_line;
+} __Pyx_CodeObjectCacheEntry;
+struct __Pyx_CodeObjectCache {
+    int count;
+    int max_count;
+    __Pyx_CodeObjectCacheEntry* entries;
+};
+static struct __Pyx_CodeObjectCache __pyx_code_cache = {0,0,NULL};
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line);
+static PyCodeObject *__pyx_find_code_object(int code_line);
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object);
+
+/* AddTraceback.proto */
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename);
+
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE uint8_t __Pyx_PyInt_As_uint8_t(PyObject *);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE uint64_t __Pyx_PyInt_As_uint64_t(PyObject *);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
+
+/* FastTypeChecks.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_TypeCheck(obj, type) __Pyx_IsSubtype(Py_TYPE(obj), (PyTypeObject *)type)
+static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b);
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject *type);
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *type1, PyObject *type2);
+#else
+#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#define __Pyx_PyErr_GivenExceptionMatches(err, type) PyErr_GivenExceptionMatches(err, type)
+#define __Pyx_PyErr_GivenExceptionMatches2(err, type1, type2) (PyErr_GivenExceptionMatches(err, type1) || PyErr_GivenExceptionMatches(err, type2))
+#endif
+#define __Pyx_PyException_Check(obj) __Pyx_TypeCheck(obj, PyExc_Exception)
+
+/* CheckBinaryVersion.proto */
+static int __Pyx_check_binary_version(void);
+
+/* InitStrings.proto */
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);
+
+static PyObject *__pyx_f_4yarl_10_quoting_c_7_Quoter__do_quote(struct __pyx_obj_4yarl_10_quoting_c__Quoter *__pyx_v_self, PyObject *__pyx_v_val, struct __pyx_t_4yarl_10_quoting_c_Writer *__pyx_v_writer); /* proto*/
+static CYTHON_INLINE int __pyx_f_4yarl_10_quoting_c_7_Quoter__write(struct __pyx_obj_4yarl_10_quoting_c__Quoter *__pyx_v_self, struct __pyx_t_4yarl_10_quoting_c_Writer *__pyx_v_writer, Py_UCS4 __pyx_v_ch); /* proto*/
+static PyObject *__pyx_f_4yarl_10_quoting_c_9_Unquoter__do_unquote(struct __pyx_obj_4yarl_10_quoting_c__Unquoter *__pyx_v_self, PyObject *__pyx_v_val); /* proto*/
+
+/* Module declarations from 'libc.stdint' */
+
+/* Module declarations from 'libc.string' */
+
+/* Module declarations from 'libc.stdio' */
+
+/* Module declarations from '__builtin__' */
+
+/* Module declarations from 'cpython.type' */
+static PyTypeObject *__pyx_ptype_7cpython_4type_type = 0;
+
+/* Module declarations from 'cpython' */
+
+/* Module declarations from 'cpython.object' */
+
+/* Module declarations from 'cpython.exc' */
+
+/* Module declarations from 'cpython.mem' */
+
+/* Module declarations from 'cpython.unicode' */
+
+/* Module declarations from 'yarl._quoting_c' */
+static PyTypeObject *__pyx_ptype_4yarl_10_quoting_c__Quoter = 0;
+static PyTypeObject *__pyx_ptype_4yarl_10_quoting_c__Unquoter = 0;
+static PyObject *__pyx_v_4yarl_10_quoting_c_GEN_DELIMS = 0;
+static PyObject *__pyx_v_4yarl_10_quoting_c_SUB_DELIMS_WITHOUT_QS = 0;
+static PyObject *__pyx_v_4yarl_10_quoting_c_SUB_DELIMS = 0;
+static PyObject *__pyx_v_4yarl_10_quoting_c_RESERVED = 0;
+static PyObject *__pyx_v_4yarl_10_quoting_c_UNRESERVED = 0;
+static PyObject *__pyx_v_4yarl_10_quoting_c_ALLOWED = 0;
+static PyObject *__pyx_v_4yarl_10_quoting_c_QS = 0;
+static char __pyx_v_4yarl_10_quoting_c_BUFFER[0x2000];
+static uint8_t __pyx_v_4yarl_10_quoting_c_ALLOWED_TABLE[16];
+static uint8_t __pyx_v_4yarl_10_quoting_c_ALLOWED_NOTQS_TABLE[16];
+static CYTHON_INLINE Py_UCS4 __pyx_f_4yarl_10_quoting_c__to_hex(uint8_t); /*proto*/
+static CYTHON_INLINE int __pyx_f_4yarl_10_quoting_c__from_hex(Py_UCS4); /*proto*/
+static CYTHON_INLINE Py_UCS4 __pyx_f_4yarl_10_quoting_c__restore_ch(Py_UCS4, Py_UCS4); /*proto*/
+static CYTHON_INLINE int __pyx_f_4yarl_10_quoting_c_bit_at(uint8_t *, uint64_t); /*proto*/
+static CYTHON_INLINE void __pyx_f_4yarl_10_quoting_c_set_bit(uint8_t *, uint64_t); /*proto*/
+static CYTHON_INLINE void __pyx_f_4yarl_10_quoting_c__init_writer(struct __pyx_t_4yarl_10_quoting_c_Writer *); /*proto*/
+static CYTHON_INLINE void __pyx_f_4yarl_10_quoting_c__release_writer(struct __pyx_t_4yarl_10_quoting_c_Writer *); /*proto*/
+static CYTHON_INLINE int __pyx_f_4yarl_10_quoting_c__write_char(struct __pyx_t_4yarl_10_quoting_c_Writer *, Py_UCS4, int); /*proto*/
+static CYTHON_INLINE int __pyx_f_4yarl_10_quoting_c__write_pct(struct __pyx_t_4yarl_10_quoting_c_Writer *, uint8_t, int); /*proto*/
+static CYTHON_INLINE int __pyx_f_4yarl_10_quoting_c__write_percent(struct __pyx_t_4yarl_10_quoting_c_Writer *); /*proto*/
+static CYTHON_INLINE int __pyx_f_4yarl_10_quoting_c__write_pct_check(struct __pyx_t_4yarl_10_quoting_c_Writer *, Py_UCS4, Py_UCS4 *); /*proto*/
+static CYTHON_INLINE int __pyx_f_4yarl_10_quoting_c__write_utf8(struct __pyx_t_4yarl_10_quoting_c_Writer *, Py_UCS4); /*proto*/
+static PyObject *__pyx_f_4yarl_10_quoting_c___pyx_unpickle__Quoter__set_state(struct __pyx_obj_4yarl_10_quoting_c__Quoter *, PyObject *); /*proto*/
+static PyObject *__pyx_f_4yarl_10_quoting_c___pyx_unpickle__Unquoter__set_state(struct __pyx_obj_4yarl_10_quoting_c__Unquoter *, PyObject *); /*proto*/
+static int __Pyx_carray_from_py_uint8_t(PyObject *, uint8_t *, Py_ssize_t); /*proto*/
+#define __Pyx_MODULE_NAME "yarl._quoting_c"
+extern int __pyx_module_is_main_yarl___quoting_c;
+int __pyx_module_is_main_yarl___quoting_c = 0;
+
+/* Implementation of 'yarl._quoting_c' */
+static PyObject *__pyx_builtin_range;
+static PyObject *__pyx_builtin_chr;
+static PyObject *__pyx_builtin_ValueError;
+static PyObject *__pyx_builtin_TypeError;
+static PyObject *__pyx_builtin_UnicodeDecodeError;
+static PyObject *__pyx_builtin_hex;
+static PyObject *__pyx_builtin_OverflowError;
+static PyObject *__pyx_builtin_enumerate;
+static PyObject *__pyx_builtin_IndexError;
+static const char __pyx_k_[] = "";
+static const char __pyx_k_i[] = "i";
+static const char __pyx_k__4[] = "+=&;";
+static const char __pyx_k__5[] = "%";
+static const char __pyx_k__6[] = "+";
+static const char __pyx_k__7[] = " ";
+static const char __pyx_k__9[] = ":/?#[]@";
+static const char __pyx_k_qs[] = "qs";
+static const char __pyx_k__10[] = "!$'()*,";
+static const char __pyx_k__11[] = "+?=;";
+static const char __pyx_k__12[] = "-._~";
+static const char __pyx_k__13[] = "+&=;";
+static const char __pyx_k_chr[] = "chr";
+static const char __pyx_k_hex[] = "hex";
+static const char __pyx_k_new[] = "__new__";
+static const char __pyx_k_val[] = "val";
+static const char __pyx_k_base[] = "base";
+static const char __pyx_k_dict[] = "__dict__";
+static const char __pyx_k_main[] = "__main__";
+static const char __pyx_k_name[] = "__name__";
+static const char __pyx_k_safe[] = "safe";
+static const char __pyx_k_test[] = "__test__";
+static const char __pyx_k_range[] = "range";
+static const char __pyx_k_upper[] = "upper";
+static const char __pyx_k_Quoter[] = "_Quoter";
+static const char __pyx_k_append[] = "append";
+static const char __pyx_k_digits[] = "digits";
+static const char __pyx_k_import[] = "__import__";
+static const char __pyx_k_pickle[] = "pickle";
+static const char __pyx_k_reduce[] = "__reduce__";
+static const char __pyx_k_string[] = "string";
+static const char __pyx_k_unsafe[] = "unsafe";
+static const char __pyx_k_update[] = "update";
+static const char __pyx_k_requote[] = "requote";
+static const char __pyx_k_Unquoter[] = "_Unquoter";
+static const char __pyx_k_getstate[] = "__getstate__";
+static const char __pyx_k_pyx_type[] = "__pyx_type";
+static const char __pyx_k_setstate[] = "__setstate__";
+static const char __pyx_k_TypeError[] = "TypeError";
+static const char __pyx_k_enumerate[] = "enumerate";
+static const char __pyx_k_protected[] = "protected";
+static const char __pyx_k_pyx_state[] = "__pyx_state";
+static const char __pyx_k_reduce_ex[] = "__reduce_ex__";
+static const char __pyx_k_IndexError[] = "IndexError";
+static const char __pyx_k_ValueError[] = "ValueError";
+static const char __pyx_k_pyx_result[] = "__pyx_result";
+static const char __pyx_k_pyx_vtable[] = "__pyx_vtable__";
+static const char __pyx_k_PickleError[] = "PickleError";
+static const char __pyx_k_pyx_checksum[] = "__pyx_checksum";
+static const char __pyx_k_stringsource[] = "stringsource";
+static const char __pyx_k_OverflowError[] = "OverflowError";
+static const char __pyx_k_ascii_letters[] = "ascii_letters";
+static const char __pyx_k_reduce_cython[] = "__reduce_cython__";
+static const char __pyx_k_pyx_PickleError[] = "__pyx_PickleError";
+static const char __pyx_k_setstate_cython[] = "__setstate_cython__";
+static const char __pyx_k_yarl__quoting_c[] = "yarl._quoting_c";
+static const char __pyx_k_UnicodeDecodeError[] = "UnicodeDecodeError";
+static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
+static const char __pyx_k_pyx_unpickle__Quoter[] = "__pyx_unpickle__Quoter";
+static const char __pyx_k_Argument_should_be_str[] = "Argument should be str";
+static const char __pyx_k_pyx_unpickle__Unquoter[] = "__pyx_unpickle__Unquoter";
+static const char __pyx_k_Incompatible_checksums_s_vs_0x27[] = "Incompatible checksums (%s vs 0x276577d = (_qs, _qs_quoter, _quoter, _unsafe))";
+static const char __pyx_k_Incompatible_checksums_s_vs_0xe9[] = "Incompatible checksums (%s vs 0xe91bd35 = (_protected_table, _qs, _requote, _safe_table))";
+static const char __pyx_k_Only_safe_symbols_with_ORD_128_a[] = "Only safe symbols with ORD < 128 are allowed";
+static PyObject *__pyx_kp_u_;
+static PyObject *__pyx_kp_u_Argument_should_be_str;
+static PyObject *__pyx_kp_s_Incompatible_checksums_s_vs_0x27;
+static PyObject *__pyx_kp_s_Incompatible_checksums_s_vs_0xe9;
+static PyObject *__pyx_n_s_IndexError;
+static PyObject *__pyx_kp_u_Only_safe_symbols_with_ORD_128_a;
+static PyObject *__pyx_n_s_OverflowError;
+static PyObject *__pyx_n_s_PickleError;
+static PyObject *__pyx_n_s_Quoter;
+static PyObject *__pyx_n_s_TypeError;
+static PyObject *__pyx_n_s_UnicodeDecodeError;
+static PyObject *__pyx_n_s_Unquoter;
+static PyObject *__pyx_n_s_ValueError;
+static PyObject *__pyx_kp_u__10;
+static PyObject *__pyx_kp_u__11;
+static PyObject *__pyx_kp_u__12;
+static PyObject *__pyx_kp_u__13;
+static PyObject *__pyx_kp_u__4;
+static PyObject *__pyx_kp_u__5;
+static PyObject *__pyx_kp_u__6;
+static PyObject *__pyx_kp_u__7;
+static PyObject *__pyx_kp_u__9;
+static PyObject *__pyx_n_s_append;
+static PyObject *__pyx_n_s_ascii_letters;
+static PyObject *__pyx_n_s_base;
+static PyObject *__pyx_n_s_chr;
+static PyObject *__pyx_n_s_cline_in_traceback;
+static PyObject *__pyx_n_s_dict;
+static PyObject *__pyx_n_s_digits;
+static PyObject *__pyx_n_s_enumerate;
+static PyObject *__pyx_n_s_getstate;
+static PyObject *__pyx_n_s_hex;
+static PyObject *__pyx_n_s_i;
+static PyObject *__pyx_n_s_import;
+static PyObject *__pyx_n_s_main;
+static PyObject *__pyx_n_s_name;
+static PyObject *__pyx_n_s_new;
+static PyObject *__pyx_n_s_pickle;
+static PyObject *__pyx_n_s_protected;
+static PyObject *__pyx_n_s_pyx_PickleError;
+static PyObject *__pyx_n_s_pyx_checksum;
+static PyObject *__pyx_n_s_pyx_result;
+static PyObject *__pyx_n_s_pyx_state;
+static PyObject *__pyx_n_s_pyx_type;
+static PyObject *__pyx_n_s_pyx_unpickle__Quoter;
+static PyObject *__pyx_n_s_pyx_unpickle__Unquoter;
+static PyObject *__pyx_n_s_pyx_vtable;
+static PyObject *__pyx_n_s_qs;
+static PyObject *__pyx_n_s_range;
+static PyObject *__pyx_n_s_reduce;
+static PyObject *__pyx_n_s_reduce_cython;
+static PyObject *__pyx_n_s_reduce_ex;
+static PyObject *__pyx_n_s_requote;
+static PyObject *__pyx_n_s_safe;
+static PyObject *__pyx_n_s_setstate;
+static PyObject *__pyx_n_s_setstate_cython;
+static PyObject *__pyx_n_s_string;
+static PyObject *__pyx_kp_s_stringsource;
+static PyObject *__pyx_n_s_test;
+static PyObject *__pyx_n_s_unsafe;
+static PyObject *__pyx_n_s_update;
+static PyObject *__pyx_n_s_upper;
+static PyObject *__pyx_n_s_val;
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+static PyObject *__pyx_pf_4yarl_10_quoting_c_7_Quoter_2__call__(struct __pyx_obj_4yarl_10_quoting_c__Quoter *__pyx_v_self, PyObject *__pyx_v_val); /* proto */
+static PyObject *__pyx_pf_4yarl_10_quoting_c_7_Quoter_4__reduce_cython__(struct __pyx_obj_4yarl_10_quoting_c__Quoter *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4yarl_10_quoting_c_7_Quoter_6__setstate_cython__(struct __pyx_obj_4yarl_10_quoting_c__Quoter *__pyx_v_self, PyObject *__pyx_v___pyx_state); /* proto */
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+static PyObject *__pyx_pf_4yarl_10_quoting_c_9_Unquoter_4__reduce_cython__(struct __pyx_obj_4yarl_10_quoting_c__Unquoter *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_4yarl_10_quoting_c_9_Unquoter_6__setstate_cython__(struct __pyx_obj_4yarl_10_quoting_c__Unquoter *__pyx_v_self, PyObject *__pyx_v___pyx_state); /* proto */
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+static PyObject *__pyx_tp_new_4yarl_10_quoting_c__Unquoter(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
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+ */
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+ * 
+ * 
+ * cdef inline int _write_percent(Writer* writer):             # <<<<<<<<<<<<<<
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+ */
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+  Py_UCS4 __pyx_v_pct1;
+  Py_UCS4 __pyx_v_pct2;
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+  int __pyx_t_1;
+  int __pyx_t_2;
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+ *     cdef Py_UCS4 pct1 = _to_hex(<uint8_t>ch >> 4)             # <<<<<<<<<<<<<<
+ *     cdef Py_UCS4 pct2 = _to_hex(<uint8_t>ch & 0x0f)
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+ */
+  __pyx_v_pct1 = __pyx_f_4yarl_10_quoting_c__to_hex((((uint8_t)__pyx_v_ch) >> 4));
+
+  /* "yarl/_quoting_c.pyx":139
+ * cdef inline int _write_pct_check(Writer* writer, Py_UCS4 ch, Py_UCS4 pct[]):
+ *     cdef Py_UCS4 pct1 = _to_hex(<uint8_t>ch >> 4)
+ *     cdef Py_UCS4 pct2 = _to_hex(<uint8_t>ch & 0x0f)             # <<<<<<<<<<<<<<
+ *     cdef bint changed = pct[0] != pct1 or pct[1] != pct2
+ * 
+ */
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+
+  /* "yarl/_quoting_c.pyx":140
+ *     cdef Py_UCS4 pct1 = _to_hex(<uint8_t>ch >> 4)
+ *     cdef Py_UCS4 pct2 = _to_hex(<uint8_t>ch & 0x0f)
+ *     cdef bint changed = pct[0] != pct1 or pct[1] != pct2             # <<<<<<<<<<<<<<
+ * 
+ *     if _write_char(writer, '%', changed) < 0:
+ */
+  __pyx_t_2 = (((__pyx_v_pct[0]) != __pyx_v_pct1) != 0);
+  if (!__pyx_t_2) {
+  } else {
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+    goto __pyx_L3_bool_binop_done;
+  }
+  __pyx_t_2 = (((__pyx_v_pct[1]) != __pyx_v_pct2) != 0);
+  __pyx_t_1 = __pyx_t_2;
+  __pyx_L3_bool_binop_done:;
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+  /* "yarl/_quoting_c.pyx":142
+ *     cdef bint changed = pct[0] != pct1 or pct[1] != pct2
+ * 
+ *     if _write_char(writer, '%', changed) < 0:             # <<<<<<<<<<<<<<
+ *         return -1
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+    /* "yarl/_quoting_c.pyx":143
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+ *     if _write_char(writer, '%', changed) < 0:
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+    goto __pyx_L0;
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+ *     cdef bint changed = pct[0] != pct1 or pct[1] != pct2
+ * 
+ *     if _write_char(writer, '%', changed) < 0:             # <<<<<<<<<<<<<<
+ *         return -1
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+ */
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+ *     if _write_char(writer, '%', changed) < 0:
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+    /* "yarl/_quoting_c.pyx":145
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+  __pyx_r = __pyx_f_4yarl_10_quoting_c__write_char(__pyx_v_writer, __pyx_v_pct2, __pyx_v_changed);
+  goto __pyx_L0;
+
+  /* "yarl/_quoting_c.pyx":137
+ * 
+ * 
+ * cdef inline int _write_pct_check(Writer* writer, Py_UCS4 ch, Py_UCS4 pct[]):             # <<<<<<<<<<<<<<
+ *     cdef Py_UCS4 pct1 = _to_hex(<uint8_t>ch >> 4)
+ *     cdef Py_UCS4 pct2 = _to_hex(<uint8_t>ch & 0x0f)
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+  /* function exit code */
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+  __Pyx_RefNannyFinishContext();
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+/* "yarl/_quoting_c.pyx":149
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+ * 
+ * cdef inline int _write_utf8(Writer* writer, Py_UCS4 symbol):             # <<<<<<<<<<<<<<
+ *     cdef uint64_t utf = <uint64_t> symbol
+ * 
+ */
+
+static CYTHON_INLINE int __pyx_f_4yarl_10_quoting_c__write_utf8(struct __pyx_t_4yarl_10_quoting_c_Writer *__pyx_v_writer, Py_UCS4 __pyx_v_symbol) {
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+  int __pyx_r;
+  __Pyx_RefNannyDeclarations
+  int __pyx_t_1;
+  int __pyx_t_2;
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+  /* "yarl/_quoting_c.pyx":150
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+ * cdef inline int _write_utf8(Writer* writer, Py_UCS4 symbol):
+ *     cdef uint64_t utf = <uint64_t> symbol             # <<<<<<<<<<<<<<
+ * 
+ *     if utf < 0x80:
+ */
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+
+  /* "yarl/_quoting_c.pyx":152
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+ * 
+ *     if utf < 0x80:             # <<<<<<<<<<<<<<
+ *         return _write_pct(writer, <uint8_t>utf, True)
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+  if (__pyx_t_1) {
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+    goto __pyx_L0;
+
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+      /* "yarl/_quoting_c.pyx":155
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+    }
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+    /* "yarl/_quoting_c.pyx":157
+ *         if _write_pct(writer, <uint8_t>(0xc0 | (utf >> 6)), True) < 0:
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+ *         return _write_pct(writer,  <uint8_t>(0x80 | (utf & 0x3f)), True)             # <<<<<<<<<<<<<<
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+    goto __pyx_L0;
+
+    /* "yarl/_quoting_c.pyx":154
+ *     if utf < 0x80:
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+ *         return 0
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+  if (__pyx_t_2) {
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+ *         if _write_pct(writer, <uint8_t>(0x80 | ((utf >> 6) & 0x3f)),
+ */
+    __pyx_t_2 = ((__pyx_f_4yarl_10_quoting_c__write_pct(__pyx_v_writer, ((uint8_t)(0xe0 | (__pyx_v_utf >> 12))), 1) < 0) != 0);
+    if (__pyx_t_2) {
+
+      /* "yarl/_quoting_c.pyx":163
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+ *             return -1             # <<<<<<<<<<<<<<
+ *         if _write_pct(writer, <uint8_t>(0x80 | ((utf >> 6) & 0x3f)),
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+      __pyx_r = -1;
+      goto __pyx_L0;
+
+      /* "yarl/_quoting_c.pyx":162
+ *         return 0
+ *     elif utf < 0x10000:
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+
+    /* "yarl/_quoting_c.pyx":165
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+ *         if _write_pct(writer, <uint8_t>(0x80 | ((utf >> 6) & 0x3f)),
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+ */
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+
+    /* "yarl/_quoting_c.pyx":164
+ *         if _write_pct(writer, <uint8_t>(0xe0 | (utf >> 12)), True) < 0:
+ *             return -1
+ *         if _write_pct(writer, <uint8_t>(0x80 | ((utf >> 6) & 0x3f)),             # <<<<<<<<<<<<<<
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+ *             return -1
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+    if (__pyx_t_2) {
+
+      /* "yarl/_quoting_c.pyx":166
+ *         if _write_pct(writer, <uint8_t>(0x80 | ((utf >> 6) & 0x3f)),
+ *                        True) < 0:
+ *             return -1             # <<<<<<<<<<<<<<
+ *         return _write_pct(writer, <uint8_t>(0x80 | (utf & 0x3f)), True)
+ *     elif utf > 0x10FFFF:
+ */
+      __pyx_r = -1;
+      goto __pyx_L0;
+
+      /* "yarl/_quoting_c.pyx":164
+ *         if _write_pct(writer, <uint8_t>(0xe0 | (utf >> 12)), True) < 0:
+ *             return -1
+ *         if _write_pct(writer, <uint8_t>(0x80 | ((utf >> 6) & 0x3f)),             # <<<<<<<<<<<<<<
+ *                        True) < 0:
+ *             return -1
+ */
+    }
+
+    /* "yarl/_quoting_c.pyx":167
+ *                        True) < 0:
+ *             return -1
+ *         return _write_pct(writer, <uint8_t>(0x80 | (utf & 0x3f)), True)             # <<<<<<<<<<<<<<
+ *     elif utf > 0x10FFFF:
+ *         # symbol is too large
+ */
+    __pyx_r = __pyx_f_4yarl_10_quoting_c__write_pct(__pyx_v_writer, ((uint8_t)(0x80 | (__pyx_v_utf & 0x3f))), 1);
+    goto __pyx_L0;
+
+    /* "yarl/_quoting_c.pyx":161
+ *         # surogate pair, ignored
+ *         return 0
+ *     elif utf < 0x10000:             # <<<<<<<<<<<<<<
+ *         if _write_pct(writer, <uint8_t>(0xe0 | (utf >> 12)), True) < 0:
+ *             return -1
+ */
+  }
+
+  /* "yarl/_quoting_c.pyx":168
+ *             return -1
+ *         return _write_pct(writer, <uint8_t>(0x80 | (utf & 0x3f)), True)
+ *     elif utf > 0x10FFFF:             # <<<<<<<<<<<<<<
+ *         # symbol is too large
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+ */
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+  if (__pyx_t_2) {
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+ *     elif utf > 0x10FFFF:             # <<<<<<<<<<<<<<
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+ *         return 0
+ */
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+    if (__pyx_t_2) {
+
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+#endif
+#endif
+    __Pyx_PyThreadState_assign
+    __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
+    if (full_traceback) {
+        Py_XINCREF(old_exc);
+        Py_XINCREF(old_val);
+        Py_XINCREF(old_tb);
+        __Pyx_ErrRestore(old_exc, old_val, old_tb);
+        PyErr_PrintEx(1);
+    }
+    #if PY_MAJOR_VERSION < 3
+    ctx = PyString_FromString(name);
+    #else
+    ctx = PyUnicode_FromString(name);
+    #endif
+    __Pyx_ErrRestore(old_exc, old_val, old_tb);
+    if (!ctx) {
+        PyErr_WriteUnraisable(Py_None);
+    } else {
+        PyErr_WriteUnraisable(ctx);
+        Py_DECREF(ctx);
+    }
+#ifdef WITH_THREAD
+    if (nogil)
+        PyGILState_Release(state);
+#endif
+}
+
+/* RaiseDoubleKeywords */
+static void __Pyx_RaiseDoubleKeywordsError(
+    const char* func_name,
+    PyObject* kw_name)
+{
+    PyErr_Format(PyExc_TypeError,
+        #if PY_MAJOR_VERSION >= 3
+        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
+        #else
+        "%s() got multiple values for keyword argument '%s'", func_name,
+        PyString_AsString(kw_name));
+        #endif
+}
+
+/* ParseKeywords */
+static int __Pyx_ParseOptionalKeywords(
+    PyObject *kwds,
+    PyObject **argnames[],
+    PyObject *kwds2,
+    PyObject *values[],
+    Py_ssize_t num_pos_args,
+    const char* function_name)
+{
+    PyObject *key = 0, *value = 0;
+    Py_ssize_t pos = 0;
+    PyObject*** name;
+    PyObject*** first_kw_arg = argnames + num_pos_args;
+    while (PyDict_Next(kwds, &pos, &key, &value)) {
+        name = first_kw_arg;
+        while (*name && (**name != key)) name++;
+        if (*name) {
+            values[name-argnames] = value;
+            continue;
+        }
+        name = first_kw_arg;
+        #if PY_MAJOR_VERSION < 3
+        if (likely(PyString_Check(key))) {
+            while (*name) {
+                if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
+                        && _PyString_Eq(**name, key)) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    if ((**argname == key) || (
+                            (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key))
+                             && _PyString_Eq(**argname, key))) {
+                        goto arg_passed_twice;
+                    }
+                    argname++;
+                }
+            }
+        } else
+        #endif
+        if (likely(PyUnicode_Check(key))) {
+            while (*name) {
+                int cmp = (**name == key) ? 0 :
+                #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                    (__Pyx_PyUnicode_GET_LENGTH(**name) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
+                #endif
+                    PyUnicode_Compare(**name, key);
+                if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                if (cmp == 0) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    int cmp = (**argname == key) ? 0 :
+                    #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                        (__Pyx_PyUnicode_GET_LENGTH(**argname) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
+                    #endif
+                        PyUnicode_Compare(**argname, key);
+                    if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                    if (cmp == 0) goto arg_passed_twice;
+                    argname++;
+                }
+            }
+        } else
+            goto invalid_keyword_type;
+        if (kwds2) {
+            if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
+        } else {
+            goto invalid_keyword;
+        }
+    }
+    return 0;
+arg_passed_twice:
+    __Pyx_RaiseDoubleKeywordsError(function_name, key);
+    goto bad;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() keywords must be strings", function_name);
+    goto bad;
+invalid_keyword:
+    PyErr_Format(PyExc_TypeError,
+    #if PY_MAJOR_VERSION < 3
+        "%.200s() got an unexpected keyword argument '%.200s'",
+        function_name, PyString_AsString(key));
+    #else
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+bad:
+    return -1;
+}
+
+/* RaiseArgTupleInvalid */
+static void __Pyx_RaiseArgtupleInvalid(
+    const char* func_name,
+    int exact,
+    Py_ssize_t num_min,
+    Py_ssize_t num_max,
+    Py_ssize_t num_found)
+{
+    Py_ssize_t num_expected;
+    const char *more_or_less;
+    if (num_found < num_min) {
+        num_expected = num_min;
+        more_or_less = "at least";
+    } else {
+        num_expected = num_max;
+        more_or_less = "at most";
+    }
+    if (exact) {
+        more_or_less = "exactly";
+    }
+    PyErr_Format(PyExc_TypeError,
+                 "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                 func_name, more_or_less, num_expected,
+                 (num_expected == 1) ? "" : "s", num_found);
+}
+
+/* ArgTypeTest */
+static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact)
+{
+    if (unlikely(!type)) {
+        PyErr_SetString(PyExc_SystemError, "Missing type object");
+        return 0;
+    }
+    else if (exact) {
+        #if PY_MAJOR_VERSION == 2
+        if ((type == &PyBaseString_Type) && likely(__Pyx_PyBaseString_CheckExact(obj))) return 1;
+        #endif
+    }
+    else {
+        if (likely(__Pyx_TypeCheck(obj, type))) return 1;
+    }
+    PyErr_Format(PyExc_TypeError,
+        "Argument '%.200s' has incorrect type (expected %.200s, got %.200s)",
+        name, type->tp_name, Py_TYPE(obj)->tp_name);
+    return 0;
+}
+
+/* unicode_iter */
+static CYTHON_INLINE int __Pyx_init_unicode_iteration(
+    PyObject* ustring, Py_ssize_t *length, void** data, int *kind) {
+#if CYTHON_PEP393_ENABLED
+    if (unlikely(__Pyx_PyUnicode_READY(ustring) < 0)) return -1;
+    *kind   = PyUnicode_KIND(ustring);
+    *length = PyUnicode_GET_LENGTH(ustring);
+    *data   = PyUnicode_DATA(ustring);
+#else
+    *kind   = 0;
+    *length = PyUnicode_GET_SIZE(ustring);
+    *data   = (void*)PyUnicode_AS_UNICODE(ustring);
+#endif
+    return 0;
+}
+
+/* PyObjectCall */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyObject *result;
+    ternaryfunc call = func->ob_type->tp_call;
+    if (unlikely(!call))
+        return PyObject_Call(func, arg, kw);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = (*call)(func, arg, kw);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+/* RaiseException */
+#if PY_MAJOR_VERSION < 3
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
+                        CYTHON_UNUSED PyObject *cause) {
+    __Pyx_PyThreadState_declare
+    Py_XINCREF(type);
+    if (!value || value == Py_None)
+        value = NULL;
+    else
+        Py_INCREF(value);
+    if (!tb || tb == Py_None)
+        tb = NULL;
+    else {
+        Py_INCREF(tb);
+        if (!PyTraceBack_Check(tb)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: arg 3 must be a traceback or None");
+            goto raise_error;
+        }
+    }
+    if (PyType_Check(type)) {
+#if CYTHON_COMPILING_IN_PYPY
+        if (!value) {
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+#endif
+        PyErr_NormalizeException(&type, &value, &tb);
+    } else {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto raise_error;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(type);
+        Py_INCREF(type);
+        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: exception class must be a subclass of BaseException");
+            goto raise_error;
+        }
+    }
+    __Pyx_PyThreadState_assign
+    __Pyx_ErrRestore(type, value, tb);
+    return;
+raise_error:
+    Py_XDECREF(value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+    return;
+}
+#else
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
+    PyObject* owned_instance = NULL;
+    if (tb == Py_None) {
+        tb = 0;
+    } else if (tb && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto bad;
+    }
+    if (value == Py_None)
+        value = 0;
+    if (PyExceptionInstance_Check(type)) {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto bad;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(value);
+    } else if (PyExceptionClass_Check(type)) {
+        PyObject *instance_class = NULL;
+        if (value && PyExceptionInstance_Check(value)) {
+            instance_class = (PyObject*) Py_TYPE(value);
+            if (instance_class != type) {
+                int is_subclass = PyObject_IsSubclass(instance_class, type);
+                if (!is_subclass) {
+                    instance_class = NULL;
+                } else if (unlikely(is_subclass == -1)) {
+                    goto bad;
+                } else {
+                    type = instance_class;
+                }
+            }
+        }
+        if (!instance_class) {
+            PyObject *args;
+            if (!value)
+                args = PyTuple_New(0);
+            else if (PyTuple_Check(value)) {
+                Py_INCREF(value);
+                args = value;
+            } else
+                args = PyTuple_Pack(1, value);
+            if (!args)
+                goto bad;
+            owned_instance = PyObject_Call(type, args, NULL);
+            Py_DECREF(args);
+            if (!owned_instance)
+                goto bad;
+            value = owned_instance;
+            if (!PyExceptionInstance_Check(value)) {
+                PyErr_Format(PyExc_TypeError,
+                             "calling %R should have returned an instance of "
+                             "BaseException, not %R",
+                             type, Py_TYPE(value));
+                goto bad;
+            }
+        }
+    } else {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
+    }
+    if (cause) {
+        PyObject *fixed_cause;
+        if (cause == Py_None) {
+            fixed_cause = NULL;
+        } else if (PyExceptionClass_Check(cause)) {
+            fixed_cause = PyObject_CallObject(cause, NULL);
+            if (fixed_cause == NULL)
+                goto bad;
+        } else if (PyExceptionInstance_Check(cause)) {
+            fixed_cause = cause;
+            Py_INCREF(fixed_cause);
+        } else {
+            PyErr_SetString(PyExc_TypeError,
+                            "exception causes must derive from "
+                            "BaseException");
+            goto bad;
+        }
+        PyException_SetCause(value, fixed_cause);
+    }
+    PyErr_SetObject(type, value);
+    if (tb) {
+#if CYTHON_COMPILING_IN_PYPY
+        PyObject *tmp_type, *tmp_value, *tmp_tb;
+        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
+        Py_INCREF(tb);
+        PyErr_Restore(tmp_type, tmp_value, tb);
+        Py_XDECREF(tmp_tb);
+#else
+        PyThreadState *tstate = __Pyx_PyThreadState_Current;
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
+        }
+#endif
+    }
+bad:
+    Py_XDECREF(owned_instance);
+    return;
+}
+#endif
+
+/* PyCFunctionFastCall */
+#if CYTHON_FAST_PYCCALL
+static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) {
+    PyCFunctionObject *func = (PyCFunctionObject*)func_obj;
+    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
+    PyObject *self = PyCFunction_GET_SELF(func);
+    int flags = PyCFunction_GET_FLAGS(func);
+    assert(PyCFunction_Check(func));
+    assert(METH_FASTCALL == (flags & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS | METH_STACKLESS)));
+    assert(nargs >= 0);
+    assert(nargs == 0 || args != NULL);
+    /* _PyCFunction_FastCallDict() must not be called with an exception set,
+       because it may clear it (directly or indirectly) and so the
+       caller loses its exception */
+    assert(!PyErr_Occurred());
+    if ((PY_VERSION_HEX < 0x030700A0) || unlikely(flags & METH_KEYWORDS)) {
+        return (*((__Pyx_PyCFunctionFastWithKeywords)(void*)meth)) (self, args, nargs, NULL);
+    } else {
+        return (*((__Pyx_PyCFunctionFast)(void*)meth)) (self, args, nargs);
+    }
+}
+#endif
+
+/* PyFunctionFastCall */
+#if CYTHON_FAST_PYCALL
+static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na,
+                                               PyObject *globals) {
+    PyFrameObject *f;
+    PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    PyObject **fastlocals;
+    Py_ssize_t i;
+    PyObject *result;
+    assert(globals != NULL);
+    /* XXX Perhaps we should create a specialized
+       PyFrame_New() that doesn't take locals, but does
+       take builtins without sanity checking them.
+       */
+    assert(tstate != NULL);
+    f = PyFrame_New(tstate, co, globals, NULL);
+    if (f == NULL) {
+        return NULL;
+    }
+    fastlocals = __Pyx_PyFrame_GetLocalsplus(f);
+    for (i = 0; i < na; i++) {
+        Py_INCREF(*args);
+        fastlocals[i] = *args++;
+    }
+    result = PyEval_EvalFrameEx(f,0);
+    ++tstate->recursion_depth;
+    Py_DECREF(f);
+    --tstate->recursion_depth;
+    return result;
+}
+#if 1 || PY_VERSION_HEX < 0x030600B1
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs) {
+    PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
+    PyObject *globals = PyFunction_GET_GLOBALS(func);
+    PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
+    PyObject *closure;
+#if PY_MAJOR_VERSION >= 3
+    PyObject *kwdefs;
+#endif
+    PyObject *kwtuple, **k;
+    PyObject **d;
+    Py_ssize_t nd;
+    Py_ssize_t nk;
+    PyObject *result;
+    assert(kwargs == NULL || PyDict_Check(kwargs));
+    nk = kwargs ? PyDict_Size(kwargs) : 0;
+    if (Py_EnterRecursiveCall((char*)" while calling a Python object")) {
+        return NULL;
+    }
+    if (
+#if PY_MAJOR_VERSION >= 3
+            co->co_kwonlyargcount == 0 &&
+#endif
+            likely(kwargs == NULL || nk == 0) &&
+            co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) {
+        if (argdefs == NULL && co->co_argcount == nargs) {
+            result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals);
+            goto done;
+        }
+        else if (nargs == 0 && argdefs != NULL
+                 && co->co_argcount == Py_SIZE(argdefs)) {
+            /* function called with no arguments, but all parameters have
+               a default value: use default values as arguments .*/
+            args = &PyTuple_GET_ITEM(argdefs, 0);
+            result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals);
+            goto done;
+        }
+    }
+    if (kwargs != NULL) {
+        Py_ssize_t pos, i;
+        kwtuple = PyTuple_New(2 * nk);
+        if (kwtuple == NULL) {
+            result = NULL;
+            goto done;
+        }
+        k = &PyTuple_GET_ITEM(kwtuple, 0);
+        pos = i = 0;
+        while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) {
+            Py_INCREF(k[i]);
+            Py_INCREF(k[i+1]);
+            i += 2;
+        }
+        nk = i / 2;
+    }
+    else {
+        kwtuple = NULL;
+        k = NULL;
+    }
+    closure = PyFunction_GET_CLOSURE(func);
+#if PY_MAJOR_VERSION >= 3
+    kwdefs = PyFunction_GET_KW_DEFAULTS(func);
+#endif
+    if (argdefs != NULL) {
+        d = &PyTuple_GET_ITEM(argdefs, 0);
+        nd = Py_SIZE(argdefs);
+    }
+    else {
+        d = NULL;
+        nd = 0;
+    }
+#if PY_MAJOR_VERSION >= 3
+    result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
+                               args, (int)nargs,
+                               k, (int)nk,
+                               d, (int)nd, kwdefs, closure);
+#else
+    result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
+                               args, (int)nargs,
+                               k, (int)nk,
+                               d, (int)nd, closure);
+#endif
+    Py_XDECREF(kwtuple);
+done:
+    Py_LeaveRecursiveCall();
+    return result;
+}
+#endif
+#endif
+
+/* PyObjectCallMethO */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
+    PyObject *self, *result;
+    PyCFunction cfunc;
+    cfunc = PyCFunction_GET_FUNCTION(func);
+    self = PyCFunction_GET_SELF(func);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = cfunc(self, arg);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+/* PyObjectCallOneArg */
+#if CYTHON_COMPILING_IN_CPYTHON
+static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_New(1);
+    if (unlikely(!args)) return NULL;
+    Py_INCREF(arg);
+    PyTuple_SET_ITEM(args, 0, arg);
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+#if CYTHON_FAST_PYCALL
+    if (PyFunction_Check(func)) {
+        return __Pyx_PyFunction_FastCall(func, &arg, 1);
+    }
+#endif
+    if (likely(PyCFunction_Check(func))) {
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
+            return __Pyx_PyObject_CallMethO(func, arg);
+#if CYTHON_FAST_PYCCALL
+        } else if (PyCFunction_GET_FLAGS(func) & METH_FASTCALL) {
+            return __Pyx_PyCFunction_FastCall(func, &arg, 1);
+#endif
+        }
+    }
+    return __Pyx__PyObject_CallOneArg(func, arg);
+}
+#else
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_Pack(1, arg);
+    if (unlikely(!args)) return NULL;
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+#endif
+
+/* GetException */
+#if CYTHON_FAST_THREAD_STATE
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
+#else
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
+#endif
+{
+    PyObject *local_type, *local_value, *local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    local_type = tstate->curexc_type;
+    local_value = tstate->curexc_value;
+    local_tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(&local_type, &local_value, &local_tb);
+#endif
+    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
+#if CYTHON_FAST_THREAD_STATE
+    if (unlikely(tstate->curexc_type))
+#else
+    if (unlikely(PyErr_Occurred()))
+#endif
+        goto bad;
+    #if PY_MAJOR_VERSION >= 3
+    if (local_tb) {
+        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
+            goto bad;
+    }
+    #endif
+    Py_XINCREF(local_tb);
+    Py_XINCREF(local_type);
+    Py_XINCREF(local_value);
+    *type = local_type;
+    *value = local_value;
+    *tb = local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    #if CYTHON_USE_EXC_INFO_STACK
+    {
+        _PyErr_StackItem *exc_info = tstate->exc_info;
+        tmp_type = exc_info->exc_type;
+        tmp_value = exc_info->exc_value;
+        tmp_tb = exc_info->exc_traceback;
+        exc_info->exc_type = local_type;
+        exc_info->exc_value = local_value;
+        exc_info->exc_traceback = local_tb;
+    }
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = local_type;
+    tstate->exc_value = local_value;
+    tstate->exc_traceback = local_tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(local_type, local_value, local_tb);
+#endif
+    return 0;
+bad:
+    *type = 0;
+    *value = 0;
+    *tb = 0;
+    Py_XDECREF(local_type);
+    Py_XDECREF(local_value);
+    Py_XDECREF(local_tb);
+    return -1;
+}
+
+/* SwapException */
+#if CYTHON_FAST_THREAD_STATE
+static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    tmp_type = exc_info->exc_type;
+    tmp_value = exc_info->exc_value;
+    tmp_tb = exc_info->exc_traceback;
+    exc_info->exc_type = *type;
+    exc_info->exc_value = *value;
+    exc_info->exc_traceback = *tb;
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = *type;
+    tstate->exc_value = *value;
+    tstate->exc_traceback = *tb;
+    #endif
+    *type = tmp_type;
+    *value = tmp_value;
+    *tb = tmp_tb;
+}
+#else
+static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyErr_GetExcInfo(&tmp_type, &tmp_value, &tmp_tb);
+    PyErr_SetExcInfo(*type, *value, *tb);
+    *type = tmp_type;
+    *value = tmp_value;
+    *tb = tmp_tb;
+}
+#endif
+
+/* GetTopmostException */
+#if CYTHON_USE_EXC_INFO_STACK
+static _PyErr_StackItem *
+__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
+{
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) &&
+           exc_info->previous_item != NULL)
+    {
+        exc_info = exc_info->previous_item;
+    }
+    return exc_info;
+}
+#endif
+
+/* SaveResetException */
+#if CYTHON_FAST_THREAD_STATE
+static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
+    *type = exc_info->exc_type;
+    *value = exc_info->exc_value;
+    *tb = exc_info->exc_traceback;
+    #else
+    *type = tstate->exc_type;
+    *value = tstate->exc_value;
+    *tb = tstate->exc_traceback;
+    #endif
+    Py_XINCREF(*type);
+    Py_XINCREF(*value);
+    Py_XINCREF(*tb);
+}
+static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = tstate->exc_info;
+    tmp_type = exc_info->exc_type;
+    tmp_value = exc_info->exc_value;
+    tmp_tb = exc_info->exc_traceback;
+    exc_info->exc_type = type;
+    exc_info->exc_value = value;
+    exc_info->exc_traceback = tb;
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = type;
+    tstate->exc_value = value;
+    tstate->exc_traceback = tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+}
+#endif
+
+/* ReRaiseException */
+static CYTHON_INLINE void __Pyx_ReraiseException(void) {
+    PyObject *type = NULL, *value = NULL, *tb = NULL;
+#if CYTHON_FAST_THREAD_STATE
+    PyThreadState *tstate = PyThreadState_GET();
+    #if CYTHON_USE_EXC_INFO_STACK
+    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
+    type = exc_info->exc_type;
+    value = exc_info->exc_value;
+    tb = exc_info->exc_traceback;
+    #else
+    type = tstate->exc_type;
+    value = tstate->exc_value;
+    tb = tstate->exc_traceback;
+    #endif
+#else
+    PyErr_GetExcInfo(&type, &value, &tb);
+#endif
+    if (!type || type == Py_None) {
+#if !CYTHON_FAST_THREAD_STATE
+        Py_XDECREF(type);
+        Py_XDECREF(value);
+        Py_XDECREF(tb);
+#endif
+        PyErr_SetString(PyExc_RuntimeError,
+            "No active exception to reraise");
+    } else {
+#if CYTHON_FAST_THREAD_STATE
+        Py_INCREF(type);
+        Py_XINCREF(value);
+        Py_XINCREF(tb);
+#endif
+        PyErr_Restore(type, value, tb);
+    }
+}
+
+/* PyErrExceptionMatches */
+#if CYTHON_FAST_THREAD_STATE
+static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
+    }
+    return 0;
+}
+static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
+    PyObject *exc_type = tstate->curexc_type;
+    if (exc_type == err) return 1;
+    if (unlikely(!exc_type)) return 0;
+    if (unlikely(PyTuple_Check(err)))
+        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
+    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
+}
+#endif
+
+/* GetAttr */
+static CYTHON_INLINE PyObject *__Pyx_GetAttr(PyObject *o, PyObject *n) {
+#if CYTHON_USE_TYPE_SLOTS
+#if PY_MAJOR_VERSION >= 3
+    if (likely(PyUnicode_Check(n)))
+#else
+    if (likely(PyString_Check(n)))
+#endif
+        return __Pyx_PyObject_GetAttrStr(o, n);
+#endif
+    return PyObject_GetAttr(o, n);
+}
+
+/* GetAttr3 */
+static PyObject *__Pyx_GetAttr3Default(PyObject *d) {
+    __Pyx_PyThreadState_declare
+    __Pyx_PyThreadState_assign
+    if (unlikely(!__Pyx_PyErr_ExceptionMatches(PyExc_AttributeError)))
+        return NULL;
+    __Pyx_PyErr_Clear();
+    Py_INCREF(d);
+    return d;
+}
+static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *o, PyObject *n, PyObject *d) {
+    PyObject *r = __Pyx_GetAttr(o, n);
+    return (likely(r)) ? r : __Pyx_GetAttr3Default(d);
+}
+
+/* PyDictVersioning */
+#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    return likely(dict) ? __PYX_GET_DICT_VERSION(dict) : 0;
+}
+static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj) {
+    PyObject **dictptr = NULL;
+    Py_ssize_t offset = Py_TYPE(obj)->tp_dictoffset;
+    if (offset) {
+#if CYTHON_COMPILING_IN_CPYTHON
+        dictptr = (likely(offset > 0)) ? (PyObject **) ((char *)obj + offset) : _PyObject_GetDictPtr(obj);
+#else
+        dictptr = _PyObject_GetDictPtr(obj);
+#endif
+    }
+    return (dictptr && *dictptr) ? __PYX_GET_DICT_VERSION(*dictptr) : 0;
+}
+static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version) {
+    PyObject *dict = Py_TYPE(obj)->tp_dict;
+    if (unlikely(!dict) || unlikely(tp_dict_version != __PYX_GET_DICT_VERSION(dict)))
+        return 0;
+    return obj_dict_version == __Pyx_get_object_dict_version(obj);
+}
+#endif
+
+/* GetModuleGlobalName */
+#if CYTHON_USE_DICT_VERSIONS
+static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
+#else
+static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
+#endif
+{
+    PyObject *result;
+#if !CYTHON_AVOID_BORROWED_REFS
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
+    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    } else if (unlikely(PyErr_Occurred())) {
+        return NULL;
+    }
+#else
+    result = PyDict_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    }
+#endif
+#else
+    result = PyObject_GetItem(__pyx_d, name);
+    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
+    if (likely(result)) {
+        return __Pyx_NewRef(result);
+    }
+    PyErr_Clear();
+#endif
+    return __Pyx_GetBuiltinName(name);
+}
+
+/* PyObjectCallNoArg */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) {
+#if CYTHON_FAST_PYCALL
+    if (PyFunction_Check(func)) {
+        return __Pyx_PyFunction_FastCall(func, NULL, 0);
+    }
+#endif
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || __Pyx_CyFunction_Check(func)))
+#else
+    if (likely(PyCFunction_Check(func)))
+#endif
+    {
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) {
+            return __Pyx_PyObject_CallMethO(func, NULL);
+        }
+    }
+    return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL);
+}
+#endif
+
+/* PyObjectCall2Args */
+static CYTHON_UNUSED PyObject* __Pyx_PyObject_Call2Args(PyObject* function, PyObject* arg1, PyObject* arg2) {
+    PyObject *args, *result = NULL;
+    #if CYTHON_FAST_PYCALL
+    if (PyFunction_Check(function)) {
+        PyObject *args[2] = {arg1, arg2};
+        return __Pyx_PyFunction_FastCall(function, args, 2);
+    }
+    #endif
+    #if CYTHON_FAST_PYCCALL
+    if (__Pyx_PyFastCFunction_Check(function)) {
+        PyObject *args[2] = {arg1, arg2};
+        return __Pyx_PyCFunction_FastCall(function, args, 2);
+    }
+    #endif
+    args = PyTuple_New(2);
+    if (unlikely(!args)) goto done;
+    Py_INCREF(arg1);
+    PyTuple_SET_ITEM(args, 0, arg1);
+    Py_INCREF(arg2);
+    PyTuple_SET_ITEM(args, 1, arg2);
+    Py_INCREF(function);
+    result = __Pyx_PyObject_Call(function, args, NULL);
+    Py_DECREF(args);
+    Py_DECREF(function);
+done:
+    return result;
+}
+
+/* PyObjectGetMethod */
+static int __Pyx_PyObject_GetMethod(PyObject *obj, PyObject *name, PyObject **method) {
+    PyObject *attr;
+#if CYTHON_UNPACK_METHODS && CYTHON_COMPILING_IN_CPYTHON && CYTHON_USE_PYTYPE_LOOKUP
+    PyTypeObject *tp = Py_TYPE(obj);
+    PyObject *descr;
+    descrgetfunc f = NULL;
+    PyObject **dictptr, *dict;
+    int meth_found = 0;
+    assert (*method == NULL);
+    if (unlikely(tp->tp_getattro != PyObject_GenericGetAttr)) {
+        attr = __Pyx_PyObject_GetAttrStr(obj, name);
+        goto try_unpack;
+    }
+    if (unlikely(tp->tp_dict == NULL) && unlikely(PyType_Ready(tp) < 0)) {
+        return 0;
+    }
+    descr = _PyType_Lookup(tp, name);
+    if (likely(descr != NULL)) {
+        Py_INCREF(descr);
+#if PY_MAJOR_VERSION >= 3
+        #ifdef __Pyx_CyFunction_USED
+        if (likely(PyFunction_Check(descr) || (Py_TYPE(descr) == &PyMethodDescr_Type) || __Pyx_CyFunction_Check(descr)))
+        #else
+        if (likely(PyFunction_Check(descr) || (Py_TYPE(descr) == &PyMethodDescr_Type)))
+        #endif
+#else
+        #ifdef __Pyx_CyFunction_USED
+        if (likely(PyFunction_Check(descr) || __Pyx_CyFunction_Check(descr)))
+        #else
+        if (likely(PyFunction_Check(descr)))
+        #endif
+#endif
+        {
+            meth_found = 1;
+        } else {
+            f = Py_TYPE(descr)->tp_descr_get;
+            if (f != NULL && PyDescr_IsData(descr)) {
+                attr = f(descr, obj, (PyObject *)Py_TYPE(obj));
+                Py_DECREF(descr);
+                goto try_unpack;
+            }
+        }
+    }
+    dictptr = _PyObject_GetDictPtr(obj);
+    if (dictptr != NULL && (dict = *dictptr) != NULL) {
+        Py_INCREF(dict);
+        attr = __Pyx_PyDict_GetItemStr(dict, name);
+        if (attr != NULL) {
+            Py_INCREF(attr);
+            Py_DECREF(dict);
+            Py_XDECREF(descr);
+            goto try_unpack;
+        }
+        Py_DECREF(dict);
+    }
+    if (meth_found) {
+        *method = descr;
+        return 1;
+    }
+    if (f != NULL) {
+        attr = f(descr, obj, (PyObject *)Py_TYPE(obj));
+        Py_DECREF(descr);
+        goto try_unpack;
+    }
+    if (descr != NULL) {
+        *method = descr;
+        return 0;
+    }
+    PyErr_Format(PyExc_AttributeError,
+#if PY_MAJOR_VERSION >= 3
+                 "'%.50s' object has no attribute '%U'",
+                 tp->tp_name, name);
+#else
+                 "'%.50s' object has no attribute '%.400s'",
+                 tp->tp_name, PyString_AS_STRING(name));
+#endif
+    return 0;
+#else
+    attr = __Pyx_PyObject_GetAttrStr(obj, name);
+    goto try_unpack;
+#endif
+try_unpack:
+#if CYTHON_UNPACK_METHODS
+    if (likely(attr) && PyMethod_Check(attr) && likely(PyMethod_GET_SELF(attr) == obj)) {
+        PyObject *function = PyMethod_GET_FUNCTION(attr);
+        Py_INCREF(function);
+        Py_DECREF(attr);
+        *method = function;
+        return 1;
+    }
+#endif
+    *method = attr;
+    return 0;
+}
+
+/* PyObjectCallMethod1 */
+static PyObject* __Pyx__PyObject_CallMethod1(PyObject* method, PyObject* arg) {
+    PyObject *result = __Pyx_PyObject_CallOneArg(method, arg);
+    Py_DECREF(method);
+    return result;
+}
+static PyObject* __Pyx_PyObject_CallMethod1(PyObject* obj, PyObject* method_name, PyObject* arg) {
+    PyObject *method = NULL, *result;
+    int is_method = __Pyx_PyObject_GetMethod(obj, method_name, &method);
+    if (likely(is_method)) {
+        result = __Pyx_PyObject_Call2Args(method, obj, arg);
+        Py_DECREF(method);
+        return result;
+    }
+    if (unlikely(!method)) return NULL;
+    return __Pyx__PyObject_CallMethod1(method, arg);
+}
+
+/* ByteArrayAppend */
+static CYTHON_INLINE int __Pyx_PyByteArray_Append(PyObject* bytearray, int value) {
+    PyObject *pyval, *retval;
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (likely(__Pyx_is_valid_index(value, 256))) {
+        Py_ssize_t n = Py_SIZE(bytearray);
+        if (likely(n != PY_SSIZE_T_MAX)) {
+            if (unlikely(PyByteArray_Resize(bytearray, n + 1) < 0))
+                return -1;
+            PyByteArray_AS_STRING(bytearray)[n] = value;
+            return 0;
+        }
+    } else {
+        PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)");
+        return -1;
+    }
+#endif
+    pyval = PyInt_FromLong(value);
+    if (unlikely(!pyval))
+        return -1;
+    retval = __Pyx_PyObject_CallMethod1(bytearray, __pyx_n_s_append, pyval);
+    Py_DECREF(pyval);
+    if (unlikely(!retval))
+        return -1;
+    Py_DECREF(retval);
+    return 0;
+}
+
+/* ByteArrayAppendObject */
+static CYTHON_INLINE int __Pyx_PyByteArray_AppendObject(PyObject* bytearray, PyObject* value) {
+    Py_ssize_t ival;
+#if PY_MAJOR_VERSION < 3
+    if (unlikely(PyString_Check(value))) {
+        if (unlikely(PyString_GET_SIZE(value) != 1)) {
+            PyErr_SetString(PyExc_ValueError, "string must be of size 1");
+            return -1;
+        }
+        ival = (unsigned char) (PyString_AS_STRING(value)[0]);
+    } else
+#endif
+#if CYTHON_USE_PYLONG_INTERNALS
+    if (likely(PyLong_CheckExact(value)) && likely(Py_SIZE(value) == 1 || Py_SIZE(value) == 0)) {
+        if (Py_SIZE(value) == 0) {
+            ival = 0;
+        } else {
+            ival = ((PyLongObject*)value)->ob_digit[0];
+            if (unlikely(ival > 255)) goto bad_range;
+        }
+    } else
+#endif
+    {
+        ival = __Pyx_PyIndex_AsSsize_t(value);
+        if (unlikely(!__Pyx_is_valid_index(ival, 256))) {
+            if (ival == -1 && PyErr_Occurred())
+                return -1;
+            goto bad_range;
+        }
+    }
+    return __Pyx_PyByteArray_Append(bytearray, ival);
+bad_range:
+    PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)");
+    return -1;
+}
+
+/* PyUnicode_Substring */
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_Substring(
+            PyObject* text, Py_ssize_t start, Py_ssize_t stop) {
+    Py_ssize_t length;
+    if (unlikely(__Pyx_PyUnicode_READY(text) == -1)) return NULL;
+    length = __Pyx_PyUnicode_GET_LENGTH(text);
+    if (start < 0) {
+        start += length;
+        if (start < 0)
+            start = 0;
+    }
+    if (stop < 0)
+        stop += length;
+    else if (stop > length)
+        stop = length;
+    if (stop <= start)
+        return __Pyx_NewRef(__pyx_empty_unicode);
+#if CYTHON_PEP393_ENABLED
+    return PyUnicode_FromKindAndData(PyUnicode_KIND(text),
+        PyUnicode_1BYTE_DATA(text) + start*PyUnicode_KIND(text), stop-start);
+#else
+    return PyUnicode_FromUnicode(PyUnicode_AS_UNICODE(text)+start, stop-start);
+#endif
+}
+
+/* decode_c_bytes */
+static CYTHON_INLINE PyObject* __Pyx_decode_c_bytes(
+         const char* cstring, Py_ssize_t length, Py_ssize_t start, Py_ssize_t stop,
+         const char* encoding, const char* errors,
+         PyObject* (*decode_func)(const char *s, Py_ssize_t size, const char *errors)) {
+    if (unlikely((start < 0) | (stop < 0))) {
+        if (start < 0) {
+            start += length;
+            if (start < 0)
+                start = 0;
+        }
+        if (stop < 0)
+            stop += length;
+    }
+    if (stop > length)
+        stop = length;
+    if (unlikely(stop <= start))
+        return __Pyx_NewRef(__pyx_empty_unicode);
+    length = stop - start;
+    cstring += start;
+    if (decode_func) {
+        return decode_func(cstring, length, errors);
+    } else {
+        return PyUnicode_Decode(cstring, length, encoding, errors);
+    }
+}
+
+/* SliceObject */
+static CYTHON_INLINE int __Pyx_PyObject_SetSlice(PyObject* obj, PyObject* value,
+        Py_ssize_t cstart, Py_ssize_t cstop,
+        PyObject** _py_start, PyObject** _py_stop, PyObject** _py_slice,
+        int has_cstart, int has_cstop, CYTHON_UNUSED int wraparound) {
+#if CYTHON_USE_TYPE_SLOTS
+    PyMappingMethods* mp;
+#if PY_MAJOR_VERSION < 3
+    PySequenceMethods* ms = Py_TYPE(obj)->tp_as_sequence;
+    if (likely(ms && ms->sq_ass_slice)) {
+        if (!has_cstart) {
+            if (_py_start && (*_py_start != Py_None)) {
+                cstart = __Pyx_PyIndex_AsSsize_t(*_py_start);
+                if ((cstart == (Py_ssize_t)-1) && PyErr_Occurred()) goto bad;
+            } else
+                cstart = 0;
+        }
+        if (!has_cstop) {
+            if (_py_stop && (*_py_stop != Py_None)) {
+                cstop = __Pyx_PyIndex_AsSsize_t(*_py_stop);
+                if ((cstop == (Py_ssize_t)-1) && PyErr_Occurred()) goto bad;
+            } else
+                cstop = PY_SSIZE_T_MAX;
+        }
+        if (wraparound && unlikely((cstart < 0) | (cstop < 0)) && likely(ms->sq_length)) {
+            Py_ssize_t l = ms->sq_length(obj);
+            if (likely(l >= 0)) {
+                if (cstop < 0) {
+                    cstop += l;
+                    if (cstop < 0) cstop = 0;
+                }
+                if (cstart < 0) {
+                    cstart += l;
+                    if (cstart < 0) cstart = 0;
+                }
+            } else {
+                if (!PyErr_ExceptionMatches(PyExc_OverflowError))
+                    goto bad;
+                PyErr_Clear();
+            }
+        }
+        return ms->sq_ass_slice(obj, cstart, cstop, value);
+    }
+#endif
+    mp = Py_TYPE(obj)->tp_as_mapping;
+    if (likely(mp && mp->mp_ass_subscript))
+#endif
+    {
+        int result;
+        PyObject *py_slice, *py_start, *py_stop;
+        if (_py_slice) {
+            py_slice = *_py_slice;
+        } else {
+            PyObject* owned_start = NULL;
+            PyObject* owned_stop = NULL;
+            if (_py_start) {
+                py_start = *_py_start;
+            } else {
+                if (has_cstart) {
+                    owned_start = py_start = PyInt_FromSsize_t(cstart);
+                    if (unlikely(!py_start)) goto bad;
+                } else
+                    py_start = Py_None;
+            }
+            if (_py_stop) {
+                py_stop = *_py_stop;
+            } else {
+                if (has_cstop) {
+                    owned_stop = py_stop = PyInt_FromSsize_t(cstop);
+                    if (unlikely(!py_stop)) {
+                        Py_XDECREF(owned_start);
+                        goto bad;
+                    }
+                } else
+                    py_stop = Py_None;
+            }
+            py_slice = PySlice_New(py_start, py_stop, Py_None);
+            Py_XDECREF(owned_start);
+            Py_XDECREF(owned_stop);
+            if (unlikely(!py_slice)) goto bad;
+        }
+#if CYTHON_USE_TYPE_SLOTS
+        result = mp->mp_ass_subscript(obj, py_slice, value);
+#else
+        result = value ? PyObject_SetItem(obj, py_slice, value) : PyObject_DelItem(obj, py_slice);
+#endif
+        if (!_py_slice) {
+            Py_DECREF(py_slice);
+        }
+        return result;
+    }
+    PyErr_Format(PyExc_TypeError,
+        "'%.200s' object does not support slice %.10s",
+        Py_TYPE(obj)->tp_name, value ? "assignment" : "deletion");
+bad:
+    return -1;
+}
+
+/* BytesEquals */
+static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals) {
+#if CYTHON_COMPILING_IN_PYPY
+    return PyObject_RichCompareBool(s1, s2, equals);
+#else
+    if (s1 == s2) {
+        return (equals == Py_EQ);
+    } else if (PyBytes_CheckExact(s1) & PyBytes_CheckExact(s2)) {
+        const char *ps1, *ps2;
+        Py_ssize_t length = PyBytes_GET_SIZE(s1);
+        if (length != PyBytes_GET_SIZE(s2))
+            return (equals == Py_NE);
+        ps1 = PyBytes_AS_STRING(s1);
+        ps2 = PyBytes_AS_STRING(s2);
+        if (ps1[0] != ps2[0]) {
+            return (equals == Py_NE);
+        } else if (length == 1) {
+            return (equals == Py_EQ);
+        } else {
+            int result;
+#if CYTHON_USE_UNICODE_INTERNALS
+            Py_hash_t hash1, hash2;
+            hash1 = ((PyBytesObject*)s1)->ob_shash;
+            hash2 = ((PyBytesObject*)s2)->ob_shash;
+            if (hash1 != hash2 && hash1 != -1 && hash2 != -1) {
+                return (equals == Py_NE);
+            }
+#endif
+            result = memcmp(ps1, ps2, (size_t)length);
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & PyBytes_CheckExact(s2)) {
+        return (equals == Py_NE);
+    } else if ((s2 == Py_None) & PyBytes_CheckExact(s1)) {
+        return (equals == Py_NE);
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+#endif
+}
+
+/* UnicodeEquals */
+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals) {
+#if CYTHON_COMPILING_IN_PYPY
+    return PyObject_RichCompareBool(s1, s2, equals);
+#else
+#if PY_MAJOR_VERSION < 3
+    PyObject* owned_ref = NULL;
+#endif
+    int s1_is_unicode, s2_is_unicode;
+    if (s1 == s2) {
+        goto return_eq;
+    }
+    s1_is_unicode = PyUnicode_CheckExact(s1);
+    s2_is_unicode = PyUnicode_CheckExact(s2);
+#if PY_MAJOR_VERSION < 3
+    if ((s1_is_unicode & (!s2_is_unicode)) && PyString_CheckExact(s2)) {
+        owned_ref = PyUnicode_FromObject(s2);
+        if (unlikely(!owned_ref))
+            return -1;
+        s2 = owned_ref;
+        s2_is_unicode = 1;
+    } else if ((s2_is_unicode & (!s1_is_unicode)) && PyString_CheckExact(s1)) {
+        owned_ref = PyUnicode_FromObject(s1);
+        if (unlikely(!owned_ref))
+            return -1;
+        s1 = owned_ref;
+        s1_is_unicode = 1;
+    } else if (((!s2_is_unicode) & (!s1_is_unicode))) {
+        return __Pyx_PyBytes_Equals(s1, s2, equals);
+    }
+#endif
+    if (s1_is_unicode & s2_is_unicode) {
+        Py_ssize_t length;
+        int kind;
+        void *data1, *data2;
+        if (unlikely(__Pyx_PyUnicode_READY(s1) < 0) || unlikely(__Pyx_PyUnicode_READY(s2) < 0))
+            return -1;
+        length = __Pyx_PyUnicode_GET_LENGTH(s1);
+        if (length != __Pyx_PyUnicode_GET_LENGTH(s2)) {
+            goto return_ne;
+        }
+#if CYTHON_USE_UNICODE_INTERNALS
+        {
+            Py_hash_t hash1, hash2;
+        #if CYTHON_PEP393_ENABLED
+            hash1 = ((PyASCIIObject*)s1)->hash;
+            hash2 = ((PyASCIIObject*)s2)->hash;
+        #else
+            hash1 = ((PyUnicodeObject*)s1)->hash;
+            hash2 = ((PyUnicodeObject*)s2)->hash;
+        #endif
+            if (hash1 != hash2 && hash1 != -1 && hash2 != -1) {
+                goto return_ne;
+            }
+        }
+#endif
+        kind = __Pyx_PyUnicode_KIND(s1);
+        if (kind != __Pyx_PyUnicode_KIND(s2)) {
+            goto return_ne;
+        }
+        data1 = __Pyx_PyUnicode_DATA(s1);
+        data2 = __Pyx_PyUnicode_DATA(s2);
+        if (__Pyx_PyUnicode_READ(kind, data1, 0) != __Pyx_PyUnicode_READ(kind, data2, 0)) {
+            goto return_ne;
+        } else if (length == 1) {
+            goto return_eq;
+        } else {
+            int result = memcmp(data1, data2, (size_t)(length * kind));
+            #if PY_MAJOR_VERSION < 3
+            Py_XDECREF(owned_ref);
+            #endif
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & s2_is_unicode) {
+        goto return_ne;
+    } else if ((s2 == Py_None) & s1_is_unicode) {
+        goto return_ne;
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        #if PY_MAJOR_VERSION < 3
+        Py_XDECREF(owned_ref);
+        #endif
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+return_eq:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_EQ);
+return_ne:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_NE);
+#endif
+}
+
+/* UnicodeAsUCS4 */
+static CYTHON_INLINE Py_UCS4 __Pyx_PyUnicode_AsPy_UCS4(PyObject* x) {
+   Py_ssize_t length;
+   #if CYTHON_PEP393_ENABLED
+   length = PyUnicode_GET_LENGTH(x);
+   if (likely(length == 1)) {
+       return PyUnicode_READ_CHAR(x, 0);
+   }
+   #else
+   length = PyUnicode_GET_SIZE(x);
+   if (likely(length == 1)) {
+       return PyUnicode_AS_UNICODE(x)[0];
+   }
+   #if Py_UNICODE_SIZE == 2
+   else if (PyUnicode_GET_SIZE(x) == 2) {
+       Py_UCS4 high_val = PyUnicode_AS_UNICODE(x)[0];
+       if (high_val >= 0xD800 && high_val <= 0xDBFF) {
+           Py_UCS4 low_val = PyUnicode_AS_UNICODE(x)[1];
+           if (low_val >= 0xDC00 && low_val <= 0xDFFF) {
+               return 0x10000 + (((high_val & ((1<<10)-1)) << 10) | (low_val & ((1<<10)-1)));
+           }
+       }
+   }
+   #endif
+   #endif
+   PyErr_Format(PyExc_ValueError,
+                "only single character unicode strings can be converted to Py_UCS4, "
+                "got length %" CYTHON_FORMAT_SSIZE_T "d", length);
+   return (Py_UCS4)-1;
+}
+
+/* object_ord */
+static long __Pyx__PyObject_Ord(PyObject* c) {
+    Py_ssize_t size;
+    if (PyBytes_Check(c)) {
+        size = PyBytes_GET_SIZE(c);
+        if (likely(size == 1)) {
+            return (unsigned char) PyBytes_AS_STRING(c)[0];
+        }
+#if PY_MAJOR_VERSION < 3
+    } else if (PyUnicode_Check(c)) {
+        return (long)__Pyx_PyUnicode_AsPy_UCS4(c);
+#endif
+#if (!CYTHON_COMPILING_IN_PYPY) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE))
+    } else if (PyByteArray_Check(c)) {
+        size = PyByteArray_GET_SIZE(c);
+        if (likely(size == 1)) {
+            return (unsigned char) PyByteArray_AS_STRING(c)[0];
+        }
+#endif
+    } else {
+        PyErr_Format(PyExc_TypeError,
+            "ord() expected string of length 1, but %.200s found", c->ob_type->tp_name);
+        return (long)(Py_UCS4)-1;
+    }
+    PyErr_Format(PyExc_TypeError,
+        "ord() expected a character, but string of length %zd found", size);
+    return (long)(Py_UCS4)-1;
+}
+
+/* SliceObject */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetSlice(PyObject* obj,
+        Py_ssize_t cstart, Py_ssize_t cstop,
+        PyObject** _py_start, PyObject** _py_stop, PyObject** _py_slice,
+        int has_cstart, int has_cstop, CYTHON_UNUSED int wraparound) {
+#if CYTHON_USE_TYPE_SLOTS
+    PyMappingMethods* mp;
+#if PY_MAJOR_VERSION < 3
+    PySequenceMethods* ms = Py_TYPE(obj)->tp_as_sequence;
+    if (likely(ms && ms->sq_slice)) {
+        if (!has_cstart) {
+            if (_py_start && (*_py_start != Py_None)) {
+                cstart = __Pyx_PyIndex_AsSsize_t(*_py_start);
+                if ((cstart == (Py_ssize_t)-1) && PyErr_Occurred()) goto bad;
+            } else
+                cstart = 0;
+        }
+        if (!has_cstop) {
+            if (_py_stop && (*_py_stop != Py_None)) {
+                cstop = __Pyx_PyIndex_AsSsize_t(*_py_stop);
+                if ((cstop == (Py_ssize_t)-1) && PyErr_Occurred()) goto bad;
+            } else
+                cstop = PY_SSIZE_T_MAX;
+        }
+        if (wraparound && unlikely((cstart < 0) | (cstop < 0)) && likely(ms->sq_length)) {
+            Py_ssize_t l = ms->sq_length(obj);
+            if (likely(l >= 0)) {
+                if (cstop < 0) {
+                    cstop += l;
+                    if (cstop < 0) cstop = 0;
+                }
+                if (cstart < 0) {
+                    cstart += l;
+                    if (cstart < 0) cstart = 0;
+                }
+            } else {
+                if (!PyErr_ExceptionMatches(PyExc_OverflowError))
+                    goto bad;
+                PyErr_Clear();
+            }
+        }
+        return ms->sq_slice(obj, cstart, cstop);
+    }
+#endif
+    mp = Py_TYPE(obj)->tp_as_mapping;
+    if (likely(mp && mp->mp_subscript))
+#endif
+    {
+        PyObject* result;
+        PyObject *py_slice, *py_start, *py_stop;
+        if (_py_slice) {
+            py_slice = *_py_slice;
+        } else {
+            PyObject* owned_start = NULL;
+            PyObject* owned_stop = NULL;
+            if (_py_start) {
+                py_start = *_py_start;
+            } else {
+                if (has_cstart) {
+                    owned_start = py_start = PyInt_FromSsize_t(cstart);
+                    if (unlikely(!py_start)) goto bad;
+                } else
+                    py_start = Py_None;
+            }
+            if (_py_stop) {
+                py_stop = *_py_stop;
+            } else {
+                if (has_cstop) {
+                    owned_stop = py_stop = PyInt_FromSsize_t(cstop);
+                    if (unlikely(!py_stop)) {
+                        Py_XDECREF(owned_start);
+                        goto bad;
+                    }
+                } else
+                    py_stop = Py_None;
+            }
+            py_slice = PySlice_New(py_start, py_stop, Py_None);
+            Py_XDECREF(owned_start);
+            Py_XDECREF(owned_stop);
+            if (unlikely(!py_slice)) goto bad;
+        }
+#if CYTHON_USE_TYPE_SLOTS
+        result = mp->mp_subscript(obj, py_slice);
+#else
+        result = PyObject_GetItem(obj, py_slice);
+#endif
+        if (!_py_slice) {
+            Py_DECREF(py_slice);
+        }
+        return result;
+    }
+    PyErr_Format(PyExc_TypeError,
+        "'%.200s' object is unsliceable", Py_TYPE(obj)->tp_name);
+bad:
+    return NULL;
+}
+
+/* Import */
+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
+    PyObject *empty_list = 0;
+    PyObject *module = 0;
+    PyObject *global_dict = 0;
+    PyObject *empty_dict = 0;
+    PyObject *list;
+    #if PY_MAJOR_VERSION < 3
+    PyObject *py_import;
+    py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import);
+    if (!py_import)
+        goto bad;
+    #endif
+    if (from_list)
+        list = from_list;
+    else {
+        empty_list = PyList_New(0);
+        if (!empty_list)
+            goto bad;
+        list = empty_list;
+    }
+    global_dict = PyModule_GetDict(__pyx_m);
+    if (!global_dict)
+        goto bad;
+    empty_dict = PyDict_New();
+    if (!empty_dict)
+        goto bad;
+    {
+        #if PY_MAJOR_VERSION >= 3
+        if (level == -1) {
+            if ((1) && (strchr(__Pyx_MODULE_NAME, '.'))) {
+                module = PyImport_ImportModuleLevelObject(
+                    name, global_dict, empty_dict, list, 1);
+                if (!module) {
+                    if (!PyErr_ExceptionMatches(PyExc_ImportError))
+                        goto bad;
+                    PyErr_Clear();
+                }
+            }
+            level = 0;
+        }
+        #endif
+        if (!module) {
+            #if PY_MAJOR_VERSION < 3
+            PyObject *py_level = PyInt_FromLong(level);
+            if (!py_level)
+                goto bad;
+            module = PyObject_CallFunctionObjArgs(py_import,
+                name, global_dict, empty_dict, list, py_level, (PyObject *)NULL);
+            Py_DECREF(py_level);
+            #else
+            module = PyImport_ImportModuleLevelObject(
+                name, global_dict, empty_dict, list, level);
+            #endif
+        }
+    }
+bad:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(py_import);
+    #endif
+    Py_XDECREF(empty_list);
+    Py_XDECREF(empty_dict);
+    return module;
+}
+
+/* ImportFrom */
+static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) {
+    PyObject* value = __Pyx_PyObject_GetAttrStr(module, name);
+    if (unlikely(!value) && PyErr_ExceptionMatches(PyExc_AttributeError)) {
+        PyErr_Format(PyExc_ImportError,
+        #if PY_MAJOR_VERSION < 3
+            "cannot import name %.230s", PyString_AS_STRING(name));
+        #else
+            "cannot import name %S", name);
+        #endif
+    }
+    return value;
+}
+
+/* GetItemInt */
+static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
+    PyObject *r;
+    if (!j) return NULL;
+    r = PyObject_GetItem(o, j);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              CYTHON_NCP_UNUSED int wraparound,
+                                                              CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    Py_ssize_t wrapped_i = i;
+    if (wraparound & unlikely(i < 0)) {
+        wrapped_i += PyList_GET_SIZE(o);
+    }
+    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyList_GET_SIZE(o)))) {
+        PyObject *r = PyList_GET_ITEM(o, wrapped_i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              CYTHON_NCP_UNUSED int wraparound,
+                                                              CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
+    Py_ssize_t wrapped_i = i;
+    if (wraparound & unlikely(i < 0)) {
+        wrapped_i += PyTuple_GET_SIZE(o);
+    }
+    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyTuple_GET_SIZE(o)))) {
+        PyObject *r = PyTuple_GET_ITEM(o, wrapped_i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i, int is_list,
+                                                     CYTHON_NCP_UNUSED int wraparound,
+                                                     CYTHON_NCP_UNUSED int boundscheck) {
+#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS && CYTHON_USE_TYPE_SLOTS
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
+        if ((!boundscheck) || (likely(__Pyx_is_valid_index(n, PyList_GET_SIZE(o))))) {
+            PyObject *r = PyList_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    }
+    else if (PyTuple_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
+        if ((!boundscheck) || likely(__Pyx_is_valid_index(n, PyTuple_GET_SIZE(o)))) {
+            PyObject *r = PyTuple_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    } else {
+        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
+        if (likely(m && m->sq_item)) {
+            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
+                Py_ssize_t l = m->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (!PyErr_ExceptionMatches(PyExc_OverflowError))
+                        return NULL;
+                    PyErr_Clear();
+                }
+            }
+            return m->sq_item(o, i);
+        }
+    }
+#else
+    if (is_list || PySequence_Check(o)) {
+        return PySequence_GetItem(o, i);
+    }
+#endif
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+}
+
+/* HasAttr */
+static CYTHON_INLINE int __Pyx_HasAttr(PyObject *o, PyObject *n) {
+    PyObject *r;
+    if (unlikely(!__Pyx_PyBaseString_Check(n))) {
+        PyErr_SetString(PyExc_TypeError,
+                        "hasattr(): attribute name must be string");
+        return -1;
+    }
+    r = __Pyx_GetAttr(o, n);
+    if (unlikely(!r)) {
+        PyErr_Clear();
+        return 0;
+    } else {
+        Py_DECREF(r);
+        return 1;
+    }
+}
+
+/* ExtTypeTest */
+static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
+    if (unlikely(!type)) {
+        PyErr_SetString(PyExc_SystemError, "Missing type object");
+        return 0;
+    }
+    if (likely(__Pyx_TypeCheck(obj, type)))
+        return 1;
+    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
+                 Py_TYPE(obj)->tp_name, type->tp_name);
+    return 0;
+}
+
+/* PyObject_GenericGetAttrNoDict */
+#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
+static PyObject *__Pyx_RaiseGenericGetAttributeError(PyTypeObject *tp, PyObject *attr_name) {
+    PyErr_Format(PyExc_AttributeError,
+#if PY_MAJOR_VERSION >= 3
+                 "'%.50s' object has no attribute '%U'",
+                 tp->tp_name, attr_name);
+#else
+                 "'%.50s' object has no attribute '%.400s'",
+                 tp->tp_name, PyString_AS_STRING(attr_name));
+#endif
+    return NULL;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name) {
+    PyObject *descr;
+    PyTypeObject *tp = Py_TYPE(obj);
+    if (unlikely(!PyString_Check(attr_name))) {
+        return PyObject_GenericGetAttr(obj, attr_name);
+    }
+    assert(!tp->tp_dictoffset);
+    descr = _PyType_Lookup(tp, attr_name);
+    if (unlikely(!descr)) {
+        return __Pyx_RaiseGenericGetAttributeError(tp, attr_name);
+    }
+    Py_INCREF(descr);
+    #if PY_MAJOR_VERSION < 3
+    if (likely(PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_HAVE_CLASS)))
+    #endif
+    {
+        descrgetfunc f = Py_TYPE(descr)->tp_descr_get;
+        if (unlikely(f)) {
+            PyObject *res = f(descr, obj, (PyObject *)tp);
+            Py_DECREF(descr);
+            return res;
+        }
+    }
+    return descr;
+}
+#endif
+
+/* PyObject_GenericGetAttr */
+#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
+static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_name) {
+    if (unlikely(Py_TYPE(obj)->tp_dictoffset)) {
+        return PyObject_GenericGetAttr(obj, attr_name);
+    }
+    return __Pyx_PyObject_GenericGetAttrNoDict(obj, attr_name);
+}
+#endif
+
+/* SetVTable */
+static int __Pyx_SetVtable(PyObject *dict, void *vtable) {
+#if PY_VERSION_HEX >= 0x02070000
+    PyObject *ob = PyCapsule_New(vtable, 0, 0);
+#else
+    PyObject *ob = PyCObject_FromVoidPtr(vtable, 0);
+#endif
+    if (!ob)
+        goto bad;
+    if (PyDict_SetItem(dict, __pyx_n_s_pyx_vtable, ob) < 0)
+        goto bad;
+    Py_DECREF(ob);
+    return 0;
+bad:
+    Py_XDECREF(ob);
+    return -1;
+}
+
+/* PyObjectGetAttrStrNoError */
+static void __Pyx_PyObject_GetAttrStr_ClearAttributeError(void) {
+    __Pyx_PyThreadState_declare
+    __Pyx_PyThreadState_assign
+    if (likely(__Pyx_PyErr_ExceptionMatches(PyExc_AttributeError)))
+        __Pyx_PyErr_Clear();
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name) {
+    PyObject *result;
+#if CYTHON_COMPILING_IN_CPYTHON && CYTHON_USE_TYPE_SLOTS && PY_VERSION_HEX >= 0x030700B1
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_getattro == PyObject_GenericGetAttr)) {
+        return _PyObject_GenericGetAttrWithDict(obj, attr_name, NULL, 1);
+    }
+#endif
+    result = __Pyx_PyObject_GetAttrStr(obj, attr_name);
+    if (unlikely(!result)) {
+        __Pyx_PyObject_GetAttrStr_ClearAttributeError();
+    }
+    return result;
+}
+
+/* SetupReduce */
+static int __Pyx_setup_reduce_is_named(PyObject* meth, PyObject* name) {
+  int ret;
+  PyObject *name_attr;
+  name_attr = __Pyx_PyObject_GetAttrStr(meth, __pyx_n_s_name);
+  if (likely(name_attr)) {
+      ret = PyObject_RichCompareBool(name_attr, name, Py_EQ);
+  } else {
+      ret = -1;
+  }
+  if (unlikely(ret < 0)) {
+      PyErr_Clear();
+      ret = 0;
+  }
+  Py_XDECREF(name_attr);
+  return ret;
+}
+static int __Pyx_setup_reduce(PyObject* type_obj) {
+    int ret = 0;
+    PyObject *object_reduce = NULL;
+    PyObject *object_reduce_ex = NULL;
+    PyObject *reduce = NULL;
+    PyObject *reduce_ex = NULL;
+    PyObject *reduce_cython = NULL;
+    PyObject *setstate = NULL;
+    PyObject *setstate_cython = NULL;
+#if CYTHON_USE_PYTYPE_LOOKUP
+    if (_PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate)) goto __PYX_GOOD;
+#else
+    if (PyObject_HasAttr(type_obj, __pyx_n_s_getstate)) goto __PYX_GOOD;
+#endif
+#if CYTHON_USE_PYTYPE_LOOKUP
+    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
+#else
+    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
+#endif
+    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto __PYX_BAD;
+    if (reduce_ex == object_reduce_ex) {
+#if CYTHON_USE_PYTYPE_LOOKUP
+        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
+#else
+        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
+#endif
+        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto __PYX_BAD;
+        if (reduce == object_reduce || __Pyx_setup_reduce_is_named(reduce, __pyx_n_s_reduce_cython)) {
+            reduce_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_reduce_cython);
+            if (likely(reduce_cython)) {
+                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+            } else if (reduce == object_reduce || PyErr_Occurred()) {
+                goto __PYX_BAD;
+            }
+            setstate = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate);
+            if (!setstate) PyErr_Clear();
+            if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) {
+                setstate_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_setstate_cython);
+                if (likely(setstate_cython)) {
+                    ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                    ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
+                } else if (!setstate || PyErr_Occurred()) {
+                    goto __PYX_BAD;
+                }
+            }
+            PyType_Modified((PyTypeObject*)type_obj);
+        }
+    }
+    goto __PYX_GOOD;
+__PYX_BAD:
+    if (!PyErr_Occurred())
+        PyErr_Format(PyExc_RuntimeError, "Unable to initialize pickling for %s", ((PyTypeObject*)type_obj)->tp_name);
+    ret = -1;
+__PYX_GOOD:
+#if !CYTHON_USE_PYTYPE_LOOKUP
+    Py_XDECREF(object_reduce);
+    Py_XDECREF(object_reduce_ex);
+#endif
+    Py_XDECREF(reduce);
+    Py_XDECREF(reduce_ex);
+    Py_XDECREF(reduce_cython);
+    Py_XDECREF(setstate);
+    Py_XDECREF(setstate_cython);
+    return ret;
+}
+
+/* TypeImport */
+#ifndef __PYX_HAVE_RT_ImportType
+#define __PYX_HAVE_RT_ImportType
+static PyTypeObject *__Pyx_ImportType(PyObject *module, const char *module_name, const char *class_name,
+    size_t size, enum __Pyx_ImportType_CheckSize check_size)
+{
+    PyObject *result = 0;
+    char warning[200];
+    Py_ssize_t basicsize;
+#ifdef Py_LIMITED_API
+    PyObject *py_basicsize;
+#endif
+    result = PyObject_GetAttrString(module, class_name);
+    if (!result)
+        goto bad;
+    if (!PyType_Check(result)) {
+        PyErr_Format(PyExc_TypeError,
+            "%.200s.%.200s is not a type object",
+            module_name, class_name);
+        goto bad;
+    }
+#ifndef Py_LIMITED_API
+    basicsize = ((PyTypeObject *)result)->tp_basicsize;
+#else
+    py_basicsize = PyObject_GetAttrString(result, "__basicsize__");
+    if (!py_basicsize)
+        goto bad;
+    basicsize = PyLong_AsSsize_t(py_basicsize);
+    Py_DECREF(py_basicsize);
+    py_basicsize = 0;
+    if (basicsize == (Py_ssize_t)-1 && PyErr_Occurred())
+        goto bad;
+#endif
+    if ((size_t)basicsize < size) {
+        PyErr_Format(PyExc_ValueError,
+            "%.200s.%.200s size changed, may indicate binary incompatibility. "
+            "Expected %zd from C header, got %zd from PyObject",
+            module_name, class_name, size, basicsize);
+        goto bad;
+    }
+    if (check_size == __Pyx_ImportType_CheckSize_Error && (size_t)basicsize != size) {
+        PyErr_Format(PyExc_ValueError,
+            "%.200s.%.200s size changed, may indicate binary incompatibility. "
+            "Expected %zd from C header, got %zd from PyObject",
+            module_name, class_name, size, basicsize);
+        goto bad;
+    }
+    else if (check_size == __Pyx_ImportType_CheckSize_Warn && (size_t)basicsize > size) {
+        PyOS_snprintf(warning, sizeof(warning),
+            "%s.%s size changed, may indicate binary incompatibility. "
+            "Expected %zd from C header, got %zd from PyObject",
+            module_name, class_name, size, basicsize);
+        if (PyErr_WarnEx(NULL, warning, 0) < 0) goto bad;
+    }
+    return (PyTypeObject *)result;
+bad:
+    Py_XDECREF(result);
+    return NULL;
+}
+#endif
+
+/* CLineInTraceback */
+#ifndef CYTHON_CLINE_IN_TRACEBACK
+static int __Pyx_CLineForTraceback(CYTHON_NCP_UNUSED PyThreadState *tstate, int c_line) {
+    PyObject *use_cline;
+    PyObject *ptype, *pvalue, *ptraceback;
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyObject **cython_runtime_dict;
+#endif
+    if (unlikely(!__pyx_cython_runtime)) {
+        return c_line;
+    }
+    __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
+#if CYTHON_COMPILING_IN_CPYTHON
+    cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
+    if (likely(cython_runtime_dict)) {
+        __PYX_PY_DICT_LOOKUP_IF_MODIFIED(
+            use_cline, *cython_runtime_dict,
+            __Pyx_PyDict_GetItemStr(*cython_runtime_dict, __pyx_n_s_cline_in_traceback))
+    } else
+#endif
+    {
+      PyObject *use_cline_obj = __Pyx_PyObject_GetAttrStr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback);
+      if (use_cline_obj) {
+        use_cline = PyObject_Not(use_cline_obj) ? Py_False : Py_True;
+        Py_DECREF(use_cline_obj);
+      } else {
+        PyErr_Clear();
+        use_cline = NULL;
+      }
+    }
+    if (!use_cline) {
+        c_line = 0;
+        PyObject_SetAttr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback, Py_False);
+    }
+    else if (use_cline == Py_False || (use_cline != Py_True && PyObject_Not(use_cline) != 0)) {
+        c_line = 0;
+    }
+    __Pyx_ErrRestoreInState(tstate, ptype, pvalue, ptraceback);
+    return c_line;
+}
+#endif
+
+/* CodeObjectCache */
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
+    int start = 0, mid = 0, end = count - 1;
+    if (end >= 0 && code_line > entries[end].code_line) {
+        return count;
+    }
+    while (start < end) {
+        mid = start + (end - start) / 2;
+        if (code_line < entries[mid].code_line) {
+            end = mid;
+        } else if (code_line > entries[mid].code_line) {
+             start = mid + 1;
+        } else {
+            return mid;
+        }
+    }
+    if (code_line <= entries[mid].code_line) {
+        return mid;
+    } else {
+        return mid + 1;
+    }
+}
+static PyCodeObject *__pyx_find_code_object(int code_line) {
+    PyCodeObject* code_object;
+    int pos;
+    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
+        return NULL;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
+        return NULL;
+    }
+    code_object = __pyx_code_cache.entries[pos].code_object;
+    Py_INCREF(code_object);
+    return code_object;
+}
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
+    int pos, i;
+    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
+    if (unlikely(!code_line)) {
+        return;
+    }
+    if (unlikely(!entries)) {
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (likely(entries)) {
+            __pyx_code_cache.entries = entries;
+            __pyx_code_cache.max_count = 64;
+            __pyx_code_cache.count = 1;
+            entries[0].code_line = code_line;
+            entries[0].code_object = code_object;
+            Py_INCREF(code_object);
+        }
+        return;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
+        PyCodeObject* tmp = entries[pos].code_object;
+        entries[pos].code_object = code_object;
+        Py_DECREF(tmp);
+        return;
+    }
+    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
+        int new_max = __pyx_code_cache.max_count + 64;
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
+            __pyx_code_cache.entries, ((size_t)new_max) * sizeof(__Pyx_CodeObjectCacheEntry));
+        if (unlikely(!entries)) {
+            return;
+        }
+        __pyx_code_cache.entries = entries;
+        __pyx_code_cache.max_count = new_max;
+    }
+    for (i=__pyx_code_cache.count; i>pos; i--) {
+        entries[i] = entries[i-1];
+    }
+    entries[pos].code_line = code_line;
+    entries[pos].code_object = code_object;
+    __pyx_code_cache.count++;
+    Py_INCREF(code_object);
+}
+
+/* AddTraceback */
+#include "compile.h"
+#include "frameobject.h"
+#include "traceback.h"
+static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
+            const char *funcname, int c_line,
+            int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyObject *py_srcfile = 0;
+    PyObject *py_funcname = 0;
+    #if PY_MAJOR_VERSION < 3
+    py_srcfile = PyString_FromString(filename);
+    #else
+    py_srcfile = PyUnicode_FromString(filename);
+    #endif
+    if (!py_srcfile) goto bad;
+    if (c_line) {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #else
+        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #endif
+    }
+    else {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromString(funcname);
+        #else
+        py_funcname = PyUnicode_FromString(funcname);
+        #endif
+    }
+    if (!py_funcname) goto bad;
+    py_code = __Pyx_PyCode_New(
+        0,
+        0,
+        0,
+        0,
+        0,
+        __pyx_empty_bytes, /*PyObject *code,*/
+        __pyx_empty_tuple, /*PyObject *consts,*/
+        __pyx_empty_tuple, /*PyObject *names,*/
+        __pyx_empty_tuple, /*PyObject *varnames,*/
+        __pyx_empty_tuple, /*PyObject *freevars,*/
+        __pyx_empty_tuple, /*PyObject *cellvars,*/
+        py_srcfile,   /*PyObject *filename,*/
+        py_funcname,  /*PyObject *name,*/
+        py_line,
+        __pyx_empty_bytes  /*PyObject *lnotab*/
+    );
+    Py_DECREF(py_srcfile);
+    Py_DECREF(py_funcname);
+    return py_code;
+bad:
+    Py_XDECREF(py_srcfile);
+    Py_XDECREF(py_funcname);
+    return NULL;
+}
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyFrameObject *py_frame = 0;
+    PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    if (c_line) {
+        c_line = __Pyx_CLineForTraceback(tstate, c_line);
+    }
+    py_code = __pyx_find_code_object(c_line ? -c_line : py_line);
+    if (!py_code) {
+        py_code = __Pyx_CreateCodeObjectForTraceback(
+            funcname, c_line, py_line, filename);
+        if (!py_code) goto bad;
+        __pyx_insert_code_object(c_line ? -c_line : py_line, py_code);
+    }
+    py_frame = PyFrame_New(
+        tstate,            /*PyThreadState *tstate,*/
+        py_code,           /*PyCodeObject *code,*/
+        __pyx_d,    /*PyObject *globals,*/
+        0                  /*PyObject *locals*/
+    );
+    if (!py_frame) goto bad;
+    __Pyx_PyFrame_SetLineNumber(py_frame, py_line);
+    PyTraceBack_Here(py_frame);
+bad:
+    Py_XDECREF(py_code);
+    Py_XDECREF(py_frame);
+}
+
+/* CIntFromPyVerify */
+#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\
+    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0)
+#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\
+    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1)
+#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\
+    {\
+        func_type value = func_value;\
+        if (sizeof(target_type) < sizeof(func_type)) {\
+            if (unlikely(value != (func_type) (target_type) value)) {\
+                func_type zero = 0;\
+                if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\
+                    return (target_type) -1;\
+                if (is_unsigned && unlikely(value < zero))\
+                    goto raise_neg_overflow;\
+                else\
+                    goto raise_overflow;\
+            }\
+        }\
+        return (target_type) value;\
+    }
+
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
+/* CIntFromPy */
+static CYTHON_INLINE uint8_t __Pyx_PyInt_As_uint8_t(PyObject *x) {
+    const uint8_t neg_one = (uint8_t) ((uint8_t) 0 - (uint8_t) 1), const_zero = (uint8_t) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(uint8_t) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(uint8_t, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (uint8_t) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (uint8_t) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(uint8_t, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(uint8_t) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint8_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint8_t) >= 2 * PyLong_SHIFT) {
+                            return (uint8_t) (((((uint8_t)digits[1]) << PyLong_SHIFT) | (uint8_t)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(uint8_t) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint8_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint8_t) >= 3 * PyLong_SHIFT) {
+                            return (uint8_t) (((((((uint8_t)digits[2]) << PyLong_SHIFT) | (uint8_t)digits[1]) << PyLong_SHIFT) | (uint8_t)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(uint8_t) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint8_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint8_t) >= 4 * PyLong_SHIFT) {
+                            return (uint8_t) (((((((((uint8_t)digits[3]) << PyLong_SHIFT) | (uint8_t)digits[2]) << PyLong_SHIFT) | (uint8_t)digits[1]) << PyLong_SHIFT) | (uint8_t)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (uint8_t) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(uint8_t) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(uint8_t, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(uint8_t) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(uint8_t, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (uint8_t) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(uint8_t, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(uint8_t,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(uint8_t) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint8_t, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint8_t) - 1 > 2 * PyLong_SHIFT) {
+                            return (uint8_t) (((uint8_t)-1)*(((((uint8_t)digits[1]) << PyLong_SHIFT) | (uint8_t)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(uint8_t) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint8_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint8_t) - 1 > 2 * PyLong_SHIFT) {
+                            return (uint8_t) ((((((uint8_t)digits[1]) << PyLong_SHIFT) | (uint8_t)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(uint8_t) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint8_t, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint8_t) - 1 > 3 * PyLong_SHIFT) {
+                            return (uint8_t) (((uint8_t)-1)*(((((((uint8_t)digits[2]) << PyLong_SHIFT) | (uint8_t)digits[1]) << PyLong_SHIFT) | (uint8_t)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(uint8_t) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint8_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint8_t) - 1 > 3 * PyLong_SHIFT) {
+                            return (uint8_t) ((((((((uint8_t)digits[2]) << PyLong_SHIFT) | (uint8_t)digits[1]) << PyLong_SHIFT) | (uint8_t)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(uint8_t) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint8_t, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint8_t) - 1 > 4 * PyLong_SHIFT) {
+                            return (uint8_t) (((uint8_t)-1)*(((((((((uint8_t)digits[3]) << PyLong_SHIFT) | (uint8_t)digits[2]) << PyLong_SHIFT) | (uint8_t)digits[1]) << PyLong_SHIFT) | (uint8_t)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(uint8_t) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint8_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint8_t) - 1 > 4 * PyLong_SHIFT) {
+                            return (uint8_t) ((((((((((uint8_t)digits[3]) << PyLong_SHIFT) | (uint8_t)digits[2]) << PyLong_SHIFT) | (uint8_t)digits[1]) << PyLong_SHIFT) | (uint8_t)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(uint8_t) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(uint8_t, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(uint8_t) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(uint8_t, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            uint8_t val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (uint8_t) -1;
+        }
+    } else {
+        uint8_t val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (uint8_t) -1;
+        val = __Pyx_PyInt_As_uint8_t(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to uint8_t");
+    return (uint8_t) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to uint8_t");
+    return (uint8_t) -1;
+}
+
+/* CIntFromPy */
+static CYTHON_INLINE uint64_t __Pyx_PyInt_As_uint64_t(PyObject *x) {
+    const uint64_t neg_one = (uint64_t) ((uint64_t) 0 - (uint64_t) 1), const_zero = (uint64_t) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(uint64_t) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(uint64_t, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (uint64_t) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (uint64_t) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(uint64_t, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(uint64_t) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint64_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint64_t) >= 2 * PyLong_SHIFT) {
+                            return (uint64_t) (((((uint64_t)digits[1]) << PyLong_SHIFT) | (uint64_t)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(uint64_t) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint64_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint64_t) >= 3 * PyLong_SHIFT) {
+                            return (uint64_t) (((((((uint64_t)digits[2]) << PyLong_SHIFT) | (uint64_t)digits[1]) << PyLong_SHIFT) | (uint64_t)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(uint64_t) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint64_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint64_t) >= 4 * PyLong_SHIFT) {
+                            return (uint64_t) (((((((((uint64_t)digits[3]) << PyLong_SHIFT) | (uint64_t)digits[2]) << PyLong_SHIFT) | (uint64_t)digits[1]) << PyLong_SHIFT) | (uint64_t)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (uint64_t) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(uint64_t) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(uint64_t, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(uint64_t) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(uint64_t, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (uint64_t) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(uint64_t, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(uint64_t,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(uint64_t) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint64_t, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint64_t) - 1 > 2 * PyLong_SHIFT) {
+                            return (uint64_t) (((uint64_t)-1)*(((((uint64_t)digits[1]) << PyLong_SHIFT) | (uint64_t)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(uint64_t) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint64_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint64_t) - 1 > 2 * PyLong_SHIFT) {
+                            return (uint64_t) ((((((uint64_t)digits[1]) << PyLong_SHIFT) | (uint64_t)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(uint64_t) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint64_t, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint64_t) - 1 > 3 * PyLong_SHIFT) {
+                            return (uint64_t) (((uint64_t)-1)*(((((((uint64_t)digits[2]) << PyLong_SHIFT) | (uint64_t)digits[1]) << PyLong_SHIFT) | (uint64_t)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(uint64_t) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint64_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint64_t) - 1 > 3 * PyLong_SHIFT) {
+                            return (uint64_t) ((((((((uint64_t)digits[2]) << PyLong_SHIFT) | (uint64_t)digits[1]) << PyLong_SHIFT) | (uint64_t)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(uint64_t) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint64_t, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint64_t) - 1 > 4 * PyLong_SHIFT) {
+                            return (uint64_t) (((uint64_t)-1)*(((((((((uint64_t)digits[3]) << PyLong_SHIFT) | (uint64_t)digits[2]) << PyLong_SHIFT) | (uint64_t)digits[1]) << PyLong_SHIFT) | (uint64_t)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(uint64_t) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(uint64_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(uint64_t) - 1 > 4 * PyLong_SHIFT) {
+                            return (uint64_t) ((((((((((uint64_t)digits[3]) << PyLong_SHIFT) | (uint64_t)digits[2]) << PyLong_SHIFT) | (uint64_t)digits[1]) << PyLong_SHIFT) | (uint64_t)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(uint64_t) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(uint64_t, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(uint64_t) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(uint64_t, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            uint64_t val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (uint64_t) -1;
+        }
+    } else {
+        uint64_t val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (uint64_t) -1;
+        val = __Pyx_PyInt_As_uint64_t(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to uint64_t");
+    return (uint64_t) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to uint64_t");
+    return (uint64_t) -1;
+}
+
+/* CIntFromPy */
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
+    const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(long) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (long) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (long) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 2 * PyLong_SHIFT) {
+                            return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 3 * PyLong_SHIFT) {
+                            return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 4 * PyLong_SHIFT) {
+                            return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (long) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(long) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (long) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(long) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                            return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                            return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
+                            return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(long) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            long val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (long) -1;
+        }
+    } else {
+        long val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (long) -1;
+        val = __Pyx_PyInt_As_long(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to long");
+    return (long) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to long");
+    return (long) -1;
+}
+
+/* CIntFromPy */
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
+    const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(int) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (int) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (int) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 2 * PyLong_SHIFT) {
+                            return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 3 * PyLong_SHIFT) {
+                            return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 4 * PyLong_SHIFT) {
+                            return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (int) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(int) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (int) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(int) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                            return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                            return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
+                            return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(int) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            int val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (int) -1;
+        }
+    } else {
+        int val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (int) -1;
+        val = __Pyx_PyInt_As_int(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to int");
+    return (int) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to int");
+    return (int) -1;
+}
+
+/* FastTypeChecks */
+#if CYTHON_COMPILING_IN_CPYTHON
+static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) {
+    while (a) {
+        a = a->tp_base;
+        if (a == b)
+            return 1;
+    }
+    return b == &PyBaseObject_Type;
+}
+static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) {
+    PyObject *mro;
+    if (a == b) return 1;
+    mro = a->tp_mro;
+    if (likely(mro)) {
+        Py_ssize_t i, n;
+        n = PyTuple_GET_SIZE(mro);
+        for (i = 0; i < n; i++) {
+            if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b)
+                return 1;
+        }
+        return 0;
+    }
+    return __Pyx_InBases(a, b);
+}
+#if PY_MAJOR_VERSION == 2
+static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) {
+    PyObject *exception, *value, *tb;
+    int res;
+    __Pyx_PyThreadState_declare
+    __Pyx_PyThreadState_assign
+    __Pyx_ErrFetch(&exception, &value, &tb);
+    res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0;
+    if (unlikely(res == -1)) {
+        PyErr_WriteUnraisable(err);
+        res = 0;
+    }
+    if (!res) {
+        res = PyObject_IsSubclass(err, exc_type2);
+        if (unlikely(res == -1)) {
+            PyErr_WriteUnraisable(err);
+            res = 0;
+        }
+    }
+    __Pyx_ErrRestore(exception, value, tb);
+    return res;
+}
+#else
+static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) {
+    int res = exc_type1 ? __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type1) : 0;
+    if (!res) {
+        res = __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2);
+    }
+    return res;
+}
+#endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
+    if (likely(err == exc_type)) return 1;
+    if (likely(PyExceptionClass_Check(err))) {
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
+    }
+    return PyErr_GivenExceptionMatches(err, exc_type);
+}
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
+    if (likely(err == exc_type1 || err == exc_type2)) return 1;
+    if (likely(PyExceptionClass_Check(err))) {
+        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
+    }
+    return (PyErr_GivenExceptionMatches(err, exc_type1) || PyErr_GivenExceptionMatches(err, exc_type2));
+}
+#endif
+
+/* CheckBinaryVersion */
+static int __Pyx_check_binary_version(void) {
+    char ctversion[4], rtversion[4];
+    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
+    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
+    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
+        char message[200];
+        PyOS_snprintf(message, sizeof(message),
+                      "compiletime version %s of module '%.100s' "
+                      "does not match runtime version %s",
+                      ctversion, __Pyx_MODULE_NAME, rtversion);
+        return PyErr_WarnEx(NULL, message, 1);
+    }
+    return 0;
+}
+
+/* InitStrings */
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+    while (t->p) {
+        #if PY_MAJOR_VERSION < 3
+        if (t->is_unicode) {
+            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
+        } else if (t->intern) {
+            *t->p = PyString_InternFromString(t->s);
+        } else {
+            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
+        }
+        #else
+        if (t->is_unicode | t->is_str) {
+            if (t->intern) {
+                *t->p = PyUnicode_InternFromString(t->s);
+            } else if (t->encoding) {
+                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
+            } else {
+                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
+            }
+        } else {
+            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
+        }
+        #endif
+        if (!*t->p)
+            return -1;
+        if (PyObject_Hash(*t->p) == -1)
+            return -1;
+        ++t;
+    }
+    return 0;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
+    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
+}
+static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject* o) {
+    Py_ssize_t ignore;
+    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
+}
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+#if !CYTHON_PEP393_ENABLED
+static const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+    char* defenc_c;
+    PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
+    if (!defenc) return NULL;
+    defenc_c = PyBytes_AS_STRING(defenc);
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+    {
+        char* end = defenc_c + PyBytes_GET_SIZE(defenc);
+        char* c;
+        for (c = defenc_c; c < end; c++) {
+            if ((unsigned char) (*c) >= 128) {
+                PyUnicode_AsASCIIString(o);
+                return NULL;
+            }
+        }
+    }
+#endif
+    *length = PyBytes_GET_SIZE(defenc);
+    return defenc_c;
+}
+#else
+static CYTHON_INLINE const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+    if (unlikely(__Pyx_PyUnicode_READY(o) == -1)) return NULL;
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+    if (likely(PyUnicode_IS_ASCII(o))) {
+        *length = PyUnicode_GET_LENGTH(o);
+        return PyUnicode_AsUTF8(o);
+    } else {
+        PyUnicode_AsASCIIString(o);
+        return NULL;
+    }
+#else
+    return PyUnicode_AsUTF8AndSize(o, length);
+#endif
+}
+#endif
+#endif
+static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+    if (
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+            __Pyx_sys_getdefaultencoding_not_ascii &&
+#endif
+            PyUnicode_Check(o)) {
+        return __Pyx_PyUnicode_AsStringAndSize(o, length);
+    } else
+#endif
+#if (!CYTHON_COMPILING_IN_PYPY) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE))
+    if (PyByteArray_Check(o)) {
+        *length = PyByteArray_GET_SIZE(o);
+        return PyByteArray_AS_STRING(o);
+    } else
+#endif
+    {
+        char* result;
+        int r = PyBytes_AsStringAndSize(o, &result, length);
+        if (unlikely(r < 0)) {
+            return NULL;
+        } else {
+            return result;
+        }
+    }
+}
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
+   int is_true = x == Py_True;
+   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
+   else return PyObject_IsTrue(x);
+}
+static CYTHON_INLINE int __Pyx_PyObject_IsTrueAndDecref(PyObject* x) {
+    int retval;
+    if (unlikely(!x)) return -1;
+    retval = __Pyx_PyObject_IsTrue(x);
+    Py_DECREF(x);
+    return retval;
+}
+static PyObject* __Pyx_PyNumber_IntOrLongWrongResultType(PyObject* result, const char* type_name) {
+#if PY_MAJOR_VERSION >= 3
+    if (PyLong_Check(result)) {
+        if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1,
+                "__int__ returned non-int (type %.200s).  "
+                "The ability to return an instance of a strict subclass of int "
+                "is deprecated, and may be removed in a future version of Python.",
+                Py_TYPE(result)->tp_name)) {
+            Py_DECREF(result);
+            return NULL;
+        }
+        return result;
+    }
+#endif
+    PyErr_Format(PyExc_TypeError,
+                 "__%.4s__ returned non-%.4s (type %.200s)",
+                 type_name, type_name, Py_TYPE(result)->tp_name);
+    Py_DECREF(result);
+    return NULL;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x) {
+#if CYTHON_USE_TYPE_SLOTS
+  PyNumberMethods *m;
+#endif
+  const char *name = NULL;
+  PyObject *res = NULL;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_Check(x) || PyLong_Check(x)))
+#else
+  if (likely(PyLong_Check(x)))
+#endif
+    return __Pyx_NewRef(x);
+#if CYTHON_USE_TYPE_SLOTS
+  m = Py_TYPE(x)->tp_as_number;
+  #if PY_MAJOR_VERSION < 3
+  if (m && m->nb_int) {
+    name = "int";
+    res = m->nb_int(x);
+  }
+  else if (m && m->nb_long) {
+    name = "long";
+    res = m->nb_long(x);
+  }
+  #else
+  if (likely(m && m->nb_int)) {
+    name = "int";
+    res = m->nb_int(x);
+  }
+  #endif
+#else
+  if (!PyBytes_CheckExact(x) && !PyUnicode_CheckExact(x)) {
+    res = PyNumber_Int(x);
+  }
+#endif
+  if (likely(res)) {
+#if PY_MAJOR_VERSION < 3
+    if (unlikely(!PyInt_Check(res) && !PyLong_Check(res))) {
+#else
+    if (unlikely(!PyLong_CheckExact(res))) {
+#endif
+        return __Pyx_PyNumber_IntOrLongWrongResultType(res, name);
+    }
+  }
+  else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_TypeError,
+                    "an integer is required");
+  }
+  return res;
+}
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
+  Py_ssize_t ival;
+  PyObject *x;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_CheckExact(b))) {
+    if (sizeof(Py_ssize_t) >= sizeof(long))
+        return PyInt_AS_LONG(b);
+    else
+        return PyInt_AsSsize_t(b);
+  }
+#endif
+  if (likely(PyLong_CheckExact(b))) {
+    #if CYTHON_USE_PYLONG_INTERNALS
+    const digit* digits = ((PyLongObject*)b)->ob_digit;
+    const Py_ssize_t size = Py_SIZE(b);
+    if (likely(__Pyx_sst_abs(size) <= 1)) {
+        ival = likely(size) ? digits[0] : 0;
+        if (size == -1) ival = -ival;
+        return ival;
+    } else {
+      switch (size) {
+         case 2:
+           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -2:
+           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case 3:
+           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -3:
+           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case 4:
+           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -4:
+           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+      }
+    }
+    #endif
+    return PyLong_AsSsize_t(b);
+  }
+  x = PyNumber_Index(b);
+  if (!x) return -1;
+  ival = PyInt_AsSsize_t(x);
+  Py_DECREF(x);
+  return ival;
+}
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
+  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
+}
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
+    return PyInt_FromSize_t(ival);
+}
+
+
+#endif /* Py_PYTHON_H */
diff --git a/venv/Lib/site-packages/yarl/_quoting_c.cp38-win_amd64.pyd b/venv/Lib/site-packages/yarl/_quoting_c.cp38-win_amd64.pyd
new file mode 100644
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HcmV?d00001

diff --git a/venv/Lib/site-packages/yarl/_quoting_c.pyi b/venv/Lib/site-packages/yarl/_quoting_c.pyi
new file mode 100644
index 0000000..4e6a35d
--- /dev/null
+++ b/venv/Lib/site-packages/yarl/_quoting_c.pyi
@@ -0,0 +1,16 @@
+from typing import Optional
+
+class _Quoter:
+    def __init__(
+        self,
+        *,
+        safe: str = ...,
+        protected: str = ...,
+        qs: bool = ...,
+        requote: bool = ...
+    ) -> None: ...
+    def __call__(self, val: Optional[str] = ...) -> Optional[str]: ...
+
+class _Unquoter:
+    def __init__(self, *, unsafe: str = ..., qs: bool = ...) -> None: ...
+    def __call__(self, val: Optional[str] = ...) -> Optional[str]: ...
diff --git a/venv/Lib/site-packages/yarl/_quoting_c.pyx b/venv/Lib/site-packages/yarl/_quoting_c.pyx
new file mode 100644
index 0000000..2f12b8e
--- /dev/null
+++ b/venv/Lib/site-packages/yarl/_quoting_c.pyx
@@ -0,0 +1,394 @@
+# cython: language_level=3
+
+from libc.stdint cimport uint8_t, uint64_t
+from libc.string cimport memcpy, memset
+
+from cpython.exc cimport PyErr_NoMemory
+from cpython.mem cimport PyMem_Malloc, PyMem_Realloc, PyMem_Free
+from cpython.unicode cimport PyUnicode_DecodeASCII
+
+from string import ascii_letters, digits
+
+cdef str GEN_DELIMS = ":/?#[]@"
+cdef str SUB_DELIMS_WITHOUT_QS = "!$'()*,"
+cdef str SUB_DELIMS = SUB_DELIMS_WITHOUT_QS + '+?=;'
+cdef str RESERVED = GEN_DELIMS + SUB_DELIMS
+cdef str UNRESERVED = ascii_letters + digits + '-._~'
+cdef str ALLOWED = UNRESERVED + SUB_DELIMS_WITHOUT_QS
+cdef str QS = '+&=;'
+
+DEF BUF_SIZE = 8 * 1024  # 8KiB
+cdef char BUFFER[BUF_SIZE]
+
+
+cdef inline Py_UCS4 _to_hex(uint8_t v):
+    if v < 10:
+        return <Py_UCS4>(v+0x30)  # ord('0') == 0x30
+    else:
+        return <Py_UCS4>(v+0x41-10)  # ord('A') == 0x41
+
+
+cdef inline int _from_hex(Py_UCS4 v):
+    if '0' <= v <= '9':
+        return <int>(v) - 0x30  # ord('0') == 0x30
+    elif 'A' <= v <= 'F':
+        return <int>(v) - 0x41 + 10  # ord('A') == 0x41
+    elif 'a' <= v <= 'f':
+        return <int>(v) - 0x61 + 10  # ord('a') == 0x61
+    else:
+        return -1
+
+
+cdef inline Py_UCS4 _restore_ch(Py_UCS4 d1, Py_UCS4 d2):
+    cdef int digit1 = _from_hex(d1)
+    if digit1 < 0:
+        return <Py_UCS4>-1
+    cdef int digit2 = _from_hex(d2)
+    if digit2 < 0:
+        return <Py_UCS4>-1
+    return <Py_UCS4>(digit1 << 4 | digit2)
+
+
+cdef uint8_t ALLOWED_TABLE[16]
+cdef uint8_t ALLOWED_NOTQS_TABLE[16]
+
+
+cdef inline bint bit_at(uint8_t array[], uint64_t ch):
+    return array[ch >> 3] & (1 << (ch & 7))
+
+
+cdef inline void set_bit(uint8_t array[], uint64_t ch):
+    array[ch >> 3] |= (1 << (ch & 7))
+
+
+memset(ALLOWED_TABLE, 0, sizeof(ALLOWED_TABLE))
+memset(ALLOWED_NOTQS_TABLE, 0, sizeof(ALLOWED_NOTQS_TABLE))
+
+for i in range(128):
+    if chr(i) in ALLOWED:
+        set_bit(ALLOWED_TABLE, i)
+        set_bit(ALLOWED_NOTQS_TABLE, i)
+    if chr(i) in QS:
+        set_bit(ALLOWED_NOTQS_TABLE, i)
+
+# ----------------- writer ---------------------------
+
+cdef struct Writer:
+    char *buf
+    Py_ssize_t size
+    Py_ssize_t pos
+    bint changed
+
+
+cdef inline void _init_writer(Writer* writer):
+    writer.buf = &BUFFER[0]
+    writer.size = BUF_SIZE
+    writer.pos = 0
+    writer.changed = 0
+
+
+cdef inline void _release_writer(Writer* writer):
+    if writer.buf != BUFFER:
+        PyMem_Free(writer.buf)
+
+
+cdef inline int _write_char(Writer* writer, Py_UCS4 ch, bint changed):
+    cdef char * buf
+    cdef Py_ssize_t size
+
+    if writer.pos == writer.size:
+        # reallocate
+        size = writer.size + BUF_SIZE
+        if writer.buf == BUFFER:
+            buf = <char*>PyMem_Malloc(size)
+            if buf == NULL:
+                PyErr_NoMemory()
+                return -1
+            memcpy(buf, writer.buf, writer.size)
+        else:
+            buf = <char*>PyMem_Realloc(writer.buf, size)
+            if buf == NULL:
+                PyErr_NoMemory()
+                return -1
+        writer.buf = buf
+        writer.size = size
+    writer.buf[writer.pos] = <char>ch
+    writer.pos += 1
+    writer.changed |= changed
+    return 0
+
+
+cdef inline int _write_pct(Writer* writer, uint8_t ch, bint changed):
+    if _write_char(writer, '%', changed) < 0:
+        return -1
+    if _write_char(writer, _to_hex(<uint8_t>ch >> 4), changed) < 0:
+        return -1
+    return _write_char(writer, _to_hex(<uint8_t>ch & 0x0f), changed)
+
+
+cdef inline int _write_percent(Writer* writer):
+    if _write_char(writer, '%', True) < 0:
+        return -1
+    if _write_char(writer, '2', True) < 0:
+        return -1
+    return _write_char(writer, '5', True)
+
+
+cdef inline int _write_pct_check(Writer* writer, Py_UCS4 ch, Py_UCS4 pct[]):
+    cdef Py_UCS4 pct1 = _to_hex(<uint8_t>ch >> 4)
+    cdef Py_UCS4 pct2 = _to_hex(<uint8_t>ch & 0x0f)
+    cdef bint changed = pct[0] != pct1 or pct[1] != pct2
+
+    if _write_char(writer, '%', changed) < 0:
+        return -1
+    if _write_char(writer, pct1, changed) < 0:
+        return -1
+    return _write_char(writer, pct2, changed)
+
+
+cdef inline int _write_utf8(Writer* writer, Py_UCS4 symbol):
+    cdef uint64_t utf = <uint64_t> symbol
+
+    if utf < 0x80:
+        return _write_pct(writer, <uint8_t>utf, True)
+    elif utf < 0x800:
+        if _write_pct(writer, <uint8_t>(0xc0 | (utf >> 6)), True) < 0:
+            return -1
+        return _write_pct(writer,  <uint8_t>(0x80 | (utf & 0x3f)), True)
+    elif 0xD800 <= utf <= 0xDFFF:
+        # surogate pair, ignored
+        return 0
+    elif utf < 0x10000:
+        if _write_pct(writer, <uint8_t>(0xe0 | (utf >> 12)), True) < 0:
+            return -1
+        if _write_pct(writer, <uint8_t>(0x80 | ((utf >> 6) & 0x3f)),
+                       True) < 0:
+            return -1
+        return _write_pct(writer, <uint8_t>(0x80 | (utf & 0x3f)), True)
+    elif utf > 0x10FFFF:
+        # symbol is too large
+        return 0
+    else:
+        if _write_pct(writer,  <uint8_t>(0xf0 | (utf >> 18)), True) < 0:
+            return -1
+        if _write_pct(writer,  <uint8_t>(0x80 | ((utf >> 12) & 0x3f)),
+                       True) < 0:
+           return -1
+        if _write_pct(writer,  <uint8_t>(0x80 | ((utf >> 6) & 0x3f)),
+                       True) < 0:
+            return -1
+        return _write_pct(writer, <uint8_t>(0x80 | (utf & 0x3f)), True)
+
+
+# --------------------- end writer --------------------------
+
+
+cdef class _Quoter:
+    cdef bint _qs
+    cdef bint _requote
+
+    cdef uint8_t _safe_table[16]
+    cdef uint8_t _protected_table[16]
+
+    def __init__(
+            self, *, str safe='', str protected='', bint qs=False, bint requote=True,
+    ):
+        cdef Py_UCS4 ch
+
+        self._qs = qs
+        self._requote = requote
+
+        if not self._qs:
+            memcpy(self._safe_table,
+                   ALLOWED_NOTQS_TABLE,
+                   sizeof(self._safe_table))
+        else:
+            memcpy(self._safe_table,
+                   ALLOWED_TABLE,
+                   sizeof(self._safe_table))
+        for ch in safe:
+            if ord(ch) > 127:
+                raise ValueError("Only safe symbols with ORD < 128 are allowed")
+            set_bit(self._safe_table, ch)
+
+        memset(self._protected_table, 0, sizeof(self._protected_table))
+        for ch in protected:
+            if ord(ch) > 127:
+                raise ValueError("Only safe symbols with ORD < 128 are allowed")
+            set_bit(self._safe_table, ch)
+            set_bit(self._protected_table, ch)
+
+    def __call__(self, val):
+        cdef Writer writer
+        if val is None:
+            return None
+        if type(val) is not str:
+            if isinstance(val, str):
+                # derived from str
+                val = str(val)
+            else:
+                raise TypeError("Argument should be str")
+        _init_writer(&writer)
+        try:
+            return self._do_quote(<str>val, &writer)
+        finally:
+            _release_writer(&writer)
+
+    cdef str _do_quote(self, str val, Writer *writer):
+        cdef Py_UCS4 ch
+        cdef int has_pct = 0
+        cdef Py_UCS4 pct[2]
+        cdef int idx = 0
+
+        for ch in val:
+            if has_pct:
+                pct[has_pct-1] = ch
+                has_pct += 1
+                if has_pct == 3:
+                    ch = _restore_ch(pct[0], pct[1])
+                    has_pct = 0
+
+                    if ch == <Py_UCS4>-1:
+                        if _write_percent(writer) < 0:
+                            raise
+                        if self._write(writer, pct[0]) < 0:
+                            raise
+                        if self._write(writer, pct[1]) < 0:
+                            raise
+                        continue
+
+                    if ch < 128:
+                        if bit_at(self._protected_table, ch):
+                            if _write_pct(writer, ch, True) < 0:
+                                raise
+                            continue
+
+                        if bit_at(self._safe_table, ch):
+                            if _write_char(writer, ch, True) < 0:
+                                raise
+                            continue
+
+                    if _write_pct_check(writer, ch, pct) < 0:
+                        raise
+                continue
+
+            elif ch == '%' and self._requote:
+                has_pct = 1
+                continue
+
+            if self._write(writer, ch) < 0:
+                raise
+
+        if has_pct:
+            if _write_percent(writer) < 0:
+                raise
+            if has_pct > 1:  # the value is 2
+                if self._write(writer, ch) < 0:
+                    raise
+
+        if not writer.changed:
+            return val
+        else:
+            return PyUnicode_DecodeASCII(writer.buf, writer.pos, "strict")
+
+    cdef inline int _write(self, Writer *writer, Py_UCS4 ch):
+        if self._qs:
+            if ch == ' ':
+                return _write_char(writer, '+', True)
+
+        if ch < 128 and bit_at(self._safe_table, ch):
+            return _write_char(writer, ch, False)
+
+        return _write_utf8(writer, ch)
+
+
+cdef class _Unquoter:
+    cdef str _unsafe
+    cdef bint _qs
+    cdef _Quoter _quoter
+    cdef _Quoter _qs_quoter
+
+    def __init__(self, *, unsafe='', qs=False):
+        self._unsafe = unsafe
+        self._qs = qs
+        self._quoter = _Quoter()
+        self._qs_quoter = _Quoter(qs=True)
+
+    def __call__(self, val):
+        if val is None:
+            return None
+        if type(val) is not str:
+            if isinstance(val, str):
+                # derived from str
+                val = str(val)
+            else:
+                raise TypeError("Argument should be str")
+        return self._do_unquote(<str>val)
+
+    cdef str _do_unquote(self, str val):
+        if len(val) == 0:
+            return val
+        cdef str pct = ''
+        cdef str last_pct = ''
+        cdef bytearray pcts = bytearray()
+        cdef list ret = []
+        cdef str unquoted
+        for ch in val:
+            if pct:
+                pct += ch
+                if len(pct) == 3:  # pragma: no branch   # peephole optimizer
+                    pcts.append(int(pct[1:], base=16))
+                    last_pct = pct
+                    pct = ''
+                continue
+            if pcts:
+                try:
+                    unquoted = pcts.decode('utf8')
+                except UnicodeDecodeError:
+                    pass
+                else:
+                    if self._qs and unquoted in '+=&;':
+                        ret.append(self._qs_quoter(unquoted))
+                    elif unquoted in self._unsafe:
+                        ret.append(self._quoter(unquoted))
+                    else:
+                        ret.append(unquoted)
+                    del pcts[:]
+
+            if ch == '%':
+                pct = ch
+                continue
+
+            if pcts:
+                ret.append(last_pct)  # %F8ab
+                last_pct = ''
+
+            if ch == '+':
+                if not self._qs or ch in self._unsafe:
+                    ret.append('+')
+                else:
+                    ret.append(' ')
+                continue
+
+            if ch in self._unsafe:
+                ret.append('%')
+                h = hex(ord(ch)).upper()[2:]
+                for ch in h:
+                    ret.append(ch)
+                continue
+
+            ret.append(ch)
+
+        if pcts:
+            try:
+                unquoted = pcts.decode('utf8')
+            except UnicodeDecodeError:
+                ret.append(last_pct)  # %F8
+            else:
+                if self._qs and unquoted in '+=&;':
+                    ret.append(self._qs_quoter(unquoted))
+                elif unquoted in self._unsafe:
+                    ret.append(self._quoter(unquoted))
+                else:
+                    ret.append(unquoted)
+        return ''.join(ret)
diff --git a/venv/Lib/site-packages/yarl/_quoting_py.py b/venv/Lib/site-packages/yarl/_quoting_py.py
new file mode 100644
index 0000000..be68b78
--- /dev/null
+++ b/venv/Lib/site-packages/yarl/_quoting_py.py
@@ -0,0 +1,206 @@
+import re
+from string import ascii_letters, ascii_lowercase, digits
+from typing import Optional, cast
+
+
+BASCII_LOWERCASE = ascii_lowercase.encode("ascii")
+BPCT_ALLOWED = {"%{:02X}".format(i).encode("ascii") for i in range(256)}
+GEN_DELIMS = ":/?#[]@"
+SUB_DELIMS_WITHOUT_QS = "!$'()*,"
+SUB_DELIMS = SUB_DELIMS_WITHOUT_QS + "+&=;"
+RESERVED = GEN_DELIMS + SUB_DELIMS
+UNRESERVED = ascii_letters + digits + "-._~"
+ALLOWED = UNRESERVED + SUB_DELIMS_WITHOUT_QS
+
+
+_IS_HEX = re.compile(b"[A-Z0-9][A-Z0-9]")
+
+
+class _Quoter:
+    def __init__(
+        self,
+        *,
+        safe: str = "",
+        protected: str = "",
+        qs: bool = False,
+        requote: bool = True
+    ) -> None:
+        self._safe = safe
+        self._protected = protected
+        self._qs = qs
+        self._requote = requote
+
+    def __call__(self, val: Optional[str]) -> Optional[str]:
+        if val is None:
+            return None
+        if not isinstance(val, str):
+            raise TypeError("Argument should be str")
+        if not val:
+            return ""
+        bval = cast(str, val).encode("utf8", errors="ignore")
+        ret = bytearray()
+        pct = bytearray()
+        safe = self._safe
+        safe += ALLOWED
+        if not self._qs:
+            safe += "+&=;"
+        safe += self._protected
+        bsafe = safe.encode("ascii")
+        idx = 0
+        while idx < len(bval):
+            ch = bval[idx]
+            idx += 1
+
+            if pct:
+                if ch in BASCII_LOWERCASE:
+                    ch = ch - 32  # convert to uppercase
+                pct.append(ch)
+                if len(pct) == 3:  # pragma: no branch   # peephole optimizer
+                    buf = pct[1:]
+                    if not _IS_HEX.match(buf):
+                        ret.extend(b"%25")
+                        pct.clear()
+                        idx -= 2
+                        continue
+                    try:
+                        unquoted = chr(int(pct[1:].decode("ascii"), base=16))
+                    except ValueError:
+                        ret.extend(b"%25")
+                        pct.clear()
+                        idx -= 2
+                        continue
+
+                    if unquoted in self._protected:
+                        ret.extend(pct)
+                    elif unquoted in safe:
+                        ret.append(ord(unquoted))
+                    else:
+                        ret.extend(pct)
+                    pct.clear()
+
+                # special case, if we have only one char after "%"
+                elif len(pct) == 2 and idx == len(bval):
+                    ret.extend(b"%25")
+                    pct.clear()
+                    idx -= 1
+
+                continue
+
+            elif ch == ord("%") and self._requote:
+                pct.clear()
+                pct.append(ch)
+
+                # special case if "%" is last char
+                if idx == len(bval):
+                    ret.extend(b"%25")
+
+                continue
+
+            if self._qs:
+                if ch == ord(" "):
+                    ret.append(ord("+"))
+                    continue
+            if ch in bsafe:
+                ret.append(ch)
+                continue
+
+            ret.extend(("%{:02X}".format(ch)).encode("ascii"))
+
+        ret2 = ret.decode("ascii")
+        if ret2 == val:
+            return val
+        return ret2
+
+
+class _Unquoter:
+    def __init__(self, *, unsafe: str = "", qs: bool = False) -> None:
+        self._unsafe = unsafe
+        self._qs = qs
+        self._quoter = _Quoter()
+        self._qs_quoter = _Quoter(qs=True)
+
+    def __call__(self, val: Optional[str]) -> Optional[str]:
+        if val is None:
+            return None
+        if not isinstance(val, str):
+            raise TypeError("Argument should be str")
+        if not val:
+            return ""
+        pct = ""
+        last_pct = ""
+        pcts = bytearray()
+        ret = []
+        for ch in val:
+            if pct:
+                pct += ch
+                if len(pct) == 3:  # pragma: no branch   # peephole optimizer
+                    pcts.append(int(pct[1:], base=16))
+                    last_pct = pct
+                    pct = ""
+                continue
+            if pcts:
+                try:
+                    unquoted = pcts.decode("utf8")
+                except UnicodeDecodeError:
+                    pass
+                else:
+                    if self._qs and unquoted in "+=&;":
+                        to_add = self._qs_quoter(unquoted)
+                        if to_add is None:  # pragma: no cover
+                            raise RuntimeError("Cannot quote None")
+                        ret.append(to_add)
+                    elif unquoted in self._unsafe:
+                        to_add = self._quoter(unquoted)
+                        if to_add is None:  # pragma: no cover
+                            raise RuntimeError("Cannot quote None")
+                        ret.append(to_add)
+                    else:
+                        ret.append(unquoted)
+                    del pcts[:]
+
+            if ch == "%":
+                pct = ch
+                continue
+
+            if pcts:
+                ret.append(last_pct)  # %F8ab
+                last_pct = ""
+
+            if ch == "+":
+                if not self._qs or ch in self._unsafe:
+                    ret.append("+")
+                else:
+                    ret.append(" ")
+                continue
+
+            if ch in self._unsafe:
+                ret.append("%")
+                h = hex(ord(ch)).upper()[2:]
+                for ch in h:
+                    ret.append(ch)
+                continue
+
+            ret.append(ch)
+
+        if pcts:
+            try:
+                unquoted = pcts.decode("utf8")
+            except UnicodeDecodeError:
+                ret.append(last_pct)  # %F8
+            else:
+                if self._qs and unquoted in "+=&;":
+                    to_add = self._qs_quoter(unquoted)
+                    if to_add is None:  # pragma: no cover
+                        raise RuntimeError("Cannot quote None")
+                    ret.append(to_add)
+                elif unquoted in self._unsafe:
+                    to_add = self._qs_quoter(unquoted)
+                    if to_add is None:  # pragma: no cover
+                        raise RuntimeError("Cannot quote None")
+                    ret.append(to_add)
+                else:
+                    ret.append(unquoted)
+        ret2 = "".join(ret)
+        if ret2 == val:
+            return val
+        return ret2
diff --git a/venv/Lib/site-packages/yarl/_url.py b/venv/Lib/site-packages/yarl/_url.py
new file mode 100644
index 0000000..61688ce
--- /dev/null
+++ b/venv/Lib/site-packages/yarl/_url.py
@@ -0,0 +1,1106 @@
+import functools
+import sys
+import warnings
+from collections.abc import Mapping, Sequence
+from ipaddress import ip_address
+from urllib.parse import SplitResult, parse_qsl, urljoin, urlsplit, urlunsplit
+
+from multidict import MultiDict, MultiDictProxy
+import idna
+
+
+from ._quoting import _Quoter, _Unquoter
+
+
+DEFAULT_PORTS = {"http": 80, "https": 443, "ws": 80, "wss": 443}
+
+sentinel = object()
+
+
+def rewrite_module(obj: object) -> object:
+    obj.__module__ = "yarl"
+    return obj
+
+
+class cached_property:
+    """Use as a class method decorator.  It operates almost exactly like
+    the Python `@property` decorator, but it puts the result of the
+    method it decorates into the instance dict after the first call,
+    effectively replacing the function it decorates with an instance
+    variable.  It is, in Python parlance, a data descriptor.
+
+    """
+
+    def __init__(self, wrapped):
+        self.wrapped = wrapped
+        try:
+            self.__doc__ = wrapped.__doc__
+        except AttributeError:  # pragma: no cover
+            self.__doc__ = ""
+        self.name = wrapped.__name__
+
+    def __get__(self, inst, owner, _sentinel=sentinel):
+        if inst is None:
+            return self
+        val = inst._cache.get(self.name, _sentinel)
+        if val is not _sentinel:
+            return val
+        val = self.wrapped(inst)
+        inst._cache[self.name] = val
+        return val
+
+    def __set__(self, inst, value):
+        raise AttributeError("cached property is read-only")
+
+
+@rewrite_module
+class URL:
+    # Don't derive from str
+    # follow pathlib.Path design
+    # probably URL will not suffer from pathlib problems:
+    # it's intended for libraries like aiohttp,
+    # not to be passed into standard library functions like os.open etc.
+
+    # URL grammar (RFC 3986)
+    # pct-encoded = "%" HEXDIG HEXDIG
+    # reserved    = gen-delims / sub-delims
+    # gen-delims  = ":" / "/" / "?" / "#" / "[" / "]" / "@"
+    # sub-delims  = "!" / "$" / "&" / "'" / "(" / ")"
+    #             / "*" / "+" / "," / ";" / "="
+    # unreserved  = ALPHA / DIGIT / "-" / "." / "_" / "~"
+    # URI         = scheme ":" hier-part [ "?" query ] [ "#" fragment ]
+    # hier-part   = "//" authority path-abempty
+    #             / path-absolute
+    #             / path-rootless
+    #             / path-empty
+    # scheme      = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
+    # authority   = [ userinfo "@" ] host [ ":" port ]
+    # userinfo    = *( unreserved / pct-encoded / sub-delims / ":" )
+    # host        = IP-literal / IPv4address / reg-name
+    # IP-literal = "[" ( IPv6address / IPvFuture  ) "]"
+    # IPvFuture  = "v" 1*HEXDIG "." 1*( unreserved / sub-delims / ":" )
+    # IPv6address =                            6( h16 ":" ) ls32
+    #             /                       "::" 5( h16 ":" ) ls32
+    #             / [               h16 ] "::" 4( h16 ":" ) ls32
+    #             / [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32
+    #             / [ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32
+    #             / [ *3( h16 ":" ) h16 ] "::"    h16 ":"   ls32
+    #             / [ *4( h16 ":" ) h16 ] "::"              ls32
+    #             / [ *5( h16 ":" ) h16 ] "::"              h16
+    #             / [ *6( h16 ":" ) h16 ] "::"
+    # ls32        = ( h16 ":" h16 ) / IPv4address
+    #             ; least-significant 32 bits of address
+    # h16         = 1*4HEXDIG
+    #             ; 16 bits of address represented in hexadecimal
+    # IPv4address = dec-octet "." dec-octet "." dec-octet "." dec-octet
+    # dec-octet   = DIGIT                 ; 0-9
+    #             / %x31-39 DIGIT         ; 10-99
+    #             / "1" 2DIGIT            ; 100-199
+    #             / "2" %x30-34 DIGIT     ; 200-249
+    #             / "25" %x30-35          ; 250-255
+    # reg-name    = *( unreserved / pct-encoded / sub-delims )
+    # port        = *DIGIT
+    # path          = path-abempty    ; begins with "/" or is empty
+    #               / path-absolute   ; begins with "/" but not "//"
+    #               / path-noscheme   ; begins with a non-colon segment
+    #               / path-rootless   ; begins with a segment
+    #               / path-empty      ; zero characters
+    # path-abempty  = *( "/" segment )
+    # path-absolute = "/" [ segment-nz *( "/" segment ) ]
+    # path-noscheme = segment-nz-nc *( "/" segment )
+    # path-rootless = segment-nz *( "/" segment )
+    # path-empty    = 0<pchar>
+    # segment       = *pchar
+    # segment-nz    = 1*pchar
+    # segment-nz-nc = 1*( unreserved / pct-encoded / sub-delims / "@" )
+    #               ; non-zero-length segment without any colon ":"
+    # pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
+    # query       = *( pchar / "/" / "?" )
+    # fragment    = *( pchar / "/" / "?" )
+    # URI-reference = URI / relative-ref
+    # relative-ref  = relative-part [ "?" query ] [ "#" fragment ]
+    # relative-part = "//" authority path-abempty
+    #               / path-absolute
+    #               / path-noscheme
+    #               / path-empty
+    # absolute-URI  = scheme ":" hier-part [ "?" query ]
+    __slots__ = ("_cache", "_val")
+
+    _QUOTER = _Quoter()
+    _PATH_QUOTER = _Quoter(safe="@:", protected="/+")
+    _QUERY_QUOTER = _Quoter(safe="?/:@", protected="=+&;", qs=True)
+    _QUERY_PART_QUOTER = _Quoter(safe="?/:@", qs=True, requote=False)
+    _FRAGMENT_QUOTER = _Quoter(safe="?/:@")
+
+    _UNQUOTER = _Unquoter()
+    _PATH_UNQUOTER = _Unquoter(unsafe="+")
+    _QS_UNQUOTER = _Unquoter(qs=True)
+
+    def __new__(cls, val="", *, encoded=False, strict=None):
+        if strict is not None:  # pragma: no cover
+            warnings.warn("strict parameter is ignored")
+        if type(val) is cls:
+            return val
+        if type(val) is str:
+            val = urlsplit(val)
+        elif type(val) is SplitResult:
+            if not encoded:
+                raise ValueError("Cannot apply decoding to SplitResult")
+        elif isinstance(val, str):
+            val = urlsplit(str(val))
+        else:
+            raise TypeError("Constructor parameter should be str")
+
+        if not encoded:
+            if not val[1]:  # netloc
+                netloc = ""
+                host = ""
+            else:
+                host = val.hostname
+                if host is None:
+                    raise ValueError("Invalid URL: host is required for absolute urls")
+
+                try:
+                    port = val.port
+                except ValueError as e:
+                    raise ValueError(
+                        "Invalid URL: port can't be converted to integer"
+                    ) from e
+
+                netloc = cls._make_netloc(
+                    val.username, val.password, host, port, encode=True
+                )
+            path = cls._PATH_QUOTER(val[2])
+            if netloc:
+                path = cls._normalize_path(path)
+
+            cls._validate_authority_uri_abs_path(host=host, path=path)
+            query = cls._QUERY_QUOTER(val[3])
+            fragment = cls._FRAGMENT_QUOTER(val[4])
+            val = SplitResult(val[0], netloc, path, query, fragment)
+
+        self = object.__new__(cls)
+        self._val = val
+        self._cache = {}
+        return self
+
+    @classmethod
+    def build(
+        cls,
+        *,
+        scheme="",
+        authority="",
+        user=None,
+        password=None,
+        host="",
+        port=None,
+        path="",
+        query=None,
+        query_string="",
+        fragment="",
+        encoded=False
+    ):
+        """Creates and returns a new URL"""
+
+        if authority and (user or password or host or port):
+            raise ValueError(
+                'Can\'t mix "authority" with "user", "password", "host" or "port".'
+            )
+        if port and not host:
+            raise ValueError('Can\'t build URL with "port" but without "host".')
+        if query and query_string:
+            raise ValueError('Only one of "query" or "query_string" should be passed')
+        if (
+            scheme is None
+            or authority is None
+            or path is None
+            or query_string is None
+            or fragment is None
+        ):
+            raise TypeError(
+                'NoneType is illegal for "scheme", "authority", "path", '
+                '"query_string", and "fragment" args, use empty string instead.'
+            )
+
+        if authority:
+            if encoded:
+                netloc = authority
+            else:
+                tmp = SplitResult("", authority, "", "", "")
+                netloc = cls._make_netloc(
+                    tmp.username, tmp.password, tmp.hostname, tmp.port, encode=True
+                )
+        elif not user and not password and not host and not port:
+            netloc = ""
+        else:
+            netloc = cls._make_netloc(user, password, host, port, encode=not encoded)
+        if not encoded:
+            path = cls._PATH_QUOTER(path)
+            if netloc:
+                path = cls._normalize_path(path)
+
+            cls._validate_authority_uri_abs_path(host=host, path=path)
+            query_string = cls._QUERY_QUOTER(query_string)
+            fragment = cls._FRAGMENT_QUOTER(fragment)
+
+        url = cls(
+            SplitResult(scheme, netloc, path, query_string, fragment), encoded=True
+        )
+
+        if query:
+            return url.with_query(query)
+        else:
+            return url
+
+    def __init_subclass__(cls):
+        raise TypeError("Inheritance a class {!r} from URL is forbidden".format(cls))
+
+    def __str__(self):
+        val = self._val
+        if not val.path and self.is_absolute() and (val.query or val.fragment):
+            val = val._replace(path="/")
+        return urlunsplit(val)
+
+    def __repr__(self):
+        return "{}('{}')".format(self.__class__.__name__, str(self))
+
+    def __eq__(self, other):
+        if not type(other) is URL:
+            return NotImplemented
+
+        val1 = self._val
+        if not val1.path and self.is_absolute():
+            val1 = val1._replace(path="/")
+
+        val2 = other._val
+        if not val2.path and other.is_absolute():
+            val2 = val2._replace(path="/")
+
+        return val1 == val2
+
+    def __hash__(self):
+        ret = self._cache.get("hash")
+        if ret is None:
+            val = self._val
+            if not val.path and self.is_absolute():
+                val = val._replace(path="/")
+            ret = self._cache["hash"] = hash(val)
+        return ret
+
+    def __le__(self, other):
+        if not type(other) is URL:
+            return NotImplemented
+        return self._val <= other._val
+
+    def __lt__(self, other):
+        if not type(other) is URL:
+            return NotImplemented
+        return self._val < other._val
+
+    def __ge__(self, other):
+        if not type(other) is URL:
+            return NotImplemented
+        return self._val >= other._val
+
+    def __gt__(self, other):
+        if not type(other) is URL:
+            return NotImplemented
+        return self._val > other._val
+
+    def __truediv__(self, name):
+        name = self._PATH_QUOTER(name)
+        if name.startswith("/"):
+            raise ValueError(
+                "Appending path {!r} starting from slash is forbidden".format(name)
+            )
+        path = self._val.path
+        if path == "/":
+            new_path = "/" + name
+        elif not path and not self.is_absolute():
+            new_path = name
+        else:
+            parts = path.rstrip("/").split("/")
+            parts.append(name)
+            new_path = "/".join(parts)
+        if self.is_absolute():
+            new_path = self._normalize_path(new_path)
+        return URL(
+            self._val._replace(path=new_path, query="", fragment=""), encoded=True
+        )
+
+    def __mod__(self, query):
+        return self.update_query(query)
+
+    def __bool__(self) -> bool:
+        return bool(
+            self._val.netloc or self._val.path or self._val.query or self._val.fragment
+        )
+
+    def __getstate__(self):
+        return (self._val,)
+
+    def __setstate__(self, state):
+        if state[0] is None and isinstance(state[1], dict):
+            # default style pickle
+            self._val = state[1]["_val"]
+        else:
+            self._val, *unused = state
+        self._cache = {}
+
+    def is_absolute(self):
+        """A check for absolute URLs.
+
+        Return True for absolute ones (having scheme or starting
+        with //), False otherwise.
+
+        """
+        return self.raw_host is not None
+
+    def is_default_port(self):
+        """A check for default port.
+
+        Return True if port is default for specified scheme,
+        e.g. 'http://python.org' or 'http://python.org:80', False
+        otherwise.
+
+        """
+        if self.port is None:
+            return False
+        default = DEFAULT_PORTS.get(self.scheme)
+        if default is None:
+            return False
+        return self.port == default
+
+    def origin(self):
+        """Return an URL with scheme, host and port parts only.
+
+        user, password, path, query and fragment are removed.
+
+        """
+        # TODO: add a keyword-only option for keeping user/pass maybe?
+        if not self.is_absolute():
+            raise ValueError("URL should be absolute")
+        if not self._val.scheme:
+            raise ValueError("URL should have scheme")
+        v = self._val
+        netloc = self._make_netloc(None, None, v.hostname, v.port, encode=False)
+        val = v._replace(netloc=netloc, path="", query="", fragment="")
+        return URL(val, encoded=True)
+
+    def relative(self):
+        """Return a relative part of the URL.
+
+        scheme, user, password, host and port are removed.
+
+        """
+        if not self.is_absolute():
+            raise ValueError("URL should be absolute")
+        val = self._val._replace(scheme="", netloc="")
+        return URL(val, encoded=True)
+
+    @property
+    def scheme(self):
+        """Scheme for absolute URLs.
+
+        Empty string for relative URLs or URLs starting with //
+
+        """
+        return self._val.scheme
+
+    @property
+    def raw_authority(self):
+        """Encoded authority part of URL.
+
+        Empty string for relative URLs.
+
+        """
+        return self._val.netloc
+
+    @cached_property
+    def authority(self):
+        """Decoded authority part of URL.
+
+        Empty string for relative URLs.
+
+        """
+        return self._make_netloc(
+            self.user, self.password, self.host, self.port, encode=False
+        )
+
+    @property
+    def raw_user(self):
+        """Encoded user part of URL.
+
+        None if user is missing.
+
+        """
+        # not .username
+        ret = self._val.username
+        if not ret:
+            return None
+        return ret
+
+    @cached_property
+    def user(self):
+        """Decoded user part of URL.
+
+        None if user is missing.
+
+        """
+        return self._UNQUOTER(self.raw_user)
+
+    @property
+    def raw_password(self):
+        """Encoded password part of URL.
+
+        None if password is missing.
+
+        """
+        return self._val.password
+
+    @cached_property
+    def password(self):
+        """Decoded password part of URL.
+
+        None if password is missing.
+
+        """
+        return self._UNQUOTER(self.raw_password)
+
+    @property
+    def raw_host(self):
+        """Encoded host part of URL.
+
+        None for relative URLs.
+
+        """
+        # Use host instead of hostname for sake of shortness
+        # May add .hostname prop later
+        return self._val.hostname
+
+    @cached_property
+    def host(self):
+        """Decoded host part of URL.
+
+        None for relative URLs.
+
+        """
+        raw = self.raw_host
+        if raw is None:
+            return None
+        if "%" in raw:
+            # Hack for scoped IPv6 addresses like
+            # fe80::2%Проверка
+            # presence of '%' sign means only IPv6 address, so idna is useless.
+            return raw
+        return _idna_decode(raw)
+
+    @property
+    def port(self):
+        """Port part of URL, with scheme-based fallback.
+
+        None for relative URLs or URLs without explicit port and
+        scheme without default port substitution.
+
+        """
+        return self._val.port or DEFAULT_PORTS.get(self._val.scheme)
+
+    @property
+    def explicit_port(self):
+        """Port part of URL, without scheme-based fallback.
+
+        None for relative URLs or URLs without explicit port.
+
+        """
+        return self._val.port
+
+    @property
+    def raw_path(self):
+        """Encoded path of URL.
+
+        / for absolute URLs without path part.
+
+        """
+        ret = self._val.path
+        if not ret and self.is_absolute():
+            ret = "/"
+        return ret
+
+    @cached_property
+    def path(self):
+        """Decoded path of URL.
+
+        / for absolute URLs without path part.
+
+        """
+        return self._PATH_UNQUOTER(self.raw_path)
+
+    @cached_property
+    def query(self):
+        """A MultiDictProxy representing parsed query parameters in decoded
+        representation.
+
+        Empty value if URL has no query part.
+
+        """
+        ret = MultiDict(parse_qsl(self.raw_query_string, keep_blank_values=True))
+        return MultiDictProxy(ret)
+
+    @property
+    def raw_query_string(self):
+        """Encoded query part of URL.
+
+        Empty string if query is missing.
+
+        """
+        return self._val.query
+
+    @cached_property
+    def query_string(self):
+        """Decoded query part of URL.
+
+        Empty string if query is missing.
+
+        """
+        return self._QS_UNQUOTER(self.raw_query_string)
+
+    @cached_property
+    def path_qs(self):
+        """Decoded path of URL with query."""
+        if not self.query_string:
+            return self.path
+        return "{}?{}".format(self.path, self.query_string)
+
+    @cached_property
+    def raw_path_qs(self):
+        """Encoded path of URL with query."""
+        if not self.raw_query_string:
+            return self.raw_path
+        return "{}?{}".format(self.raw_path, self.raw_query_string)
+
+    @property
+    def raw_fragment(self):
+        """Encoded fragment part of URL.
+
+        Empty string if fragment is missing.
+
+        """
+        return self._val.fragment
+
+    @cached_property
+    def fragment(self):
+        """Decoded fragment part of URL.
+
+        Empty string if fragment is missing.
+
+        """
+        return self._UNQUOTER(self.raw_fragment)
+
+    @cached_property
+    def raw_parts(self):
+        """A tuple containing encoded *path* parts.
+
+        ('/',) for absolute URLs if *path* is missing.
+
+        """
+        path = self._val.path
+        if self.is_absolute():
+            if not path:
+                parts = ["/"]
+            else:
+                parts = ["/"] + path[1:].split("/")
+        else:
+            if path.startswith("/"):
+                parts = ["/"] + path[1:].split("/")
+            else:
+                parts = path.split("/")
+        return tuple(parts)
+
+    @cached_property
+    def parts(self):
+        """A tuple containing decoded *path* parts.
+
+        ('/',) for absolute URLs if *path* is missing.
+
+        """
+        return tuple(self._UNQUOTER(part) for part in self.raw_parts)
+
+    @cached_property
+    def parent(self):
+        """A new URL with last part of path removed and cleaned up query and
+        fragment.
+
+        """
+        path = self.raw_path
+        if not path or path == "/":
+            if self.raw_fragment or self.raw_query_string:
+                return URL(self._val._replace(query="", fragment=""), encoded=True)
+            return self
+        parts = path.split("/")
+        val = self._val._replace(path="/".join(parts[:-1]), query="", fragment="")
+        return URL(val, encoded=True)
+
+    @cached_property
+    def raw_name(self):
+        """The last part of raw_parts."""
+        parts = self.raw_parts
+        if self.is_absolute():
+            parts = parts[1:]
+            if not parts:
+                return ""
+            else:
+                return parts[-1]
+        else:
+            return parts[-1]
+
+    @cached_property
+    def name(self):
+        """The last part of parts."""
+        return self._UNQUOTER(self.raw_name)
+
+    @staticmethod
+    def _validate_authority_uri_abs_path(host, path):
+        """Ensure that path in URL with authority starts with a leading slash.
+
+        Raise ValueError if not.
+        """
+        if len(host) > 0 and len(path) > 0 and not path.startswith("/"):
+            raise ValueError(
+                "Path in a URL with authority should start with a slash ('/') if set"
+            )
+
+    @classmethod
+    def _normalize_path(cls, path):
+        # Drop '.' and '..' from path
+
+        segments = path.split("/")
+        resolved_path = []
+
+        for seg in segments:
+            if seg == "..":
+                try:
+                    resolved_path.pop()
+                except IndexError:
+                    # ignore any .. segments that would otherwise cause an
+                    # IndexError when popped from resolved_path if
+                    # resolving for rfc3986
+                    pass
+            elif seg == ".":
+                continue
+            else:
+                resolved_path.append(seg)
+
+        if segments[-1] in (".", ".."):
+            # do some post-processing here.
+            # if the last segment was a relative dir,
+            # then we need to append the trailing '/'
+            resolved_path.append("")
+
+        return "/".join(resolved_path)
+
+    if sys.version_info >= (3, 7):
+
+        @classmethod
+        def _encode_host(cls, host):
+            try:
+                ip, sep, zone = host.partition("%")
+                ip = ip_address(ip)
+            except ValueError:
+                host = host.lower()
+                # IDNA encoding is slow,
+                # skip it for ASCII-only strings
+                # Don't move the check into _idna_encode() helper
+                # to reduce the cache size
+                if host.isascii():
+                    return host
+                host = _idna_encode(host)
+            else:
+                host = ip.compressed
+                if sep:
+                    host += "%" + zone
+                if ip.version == 6:
+                    host = "[" + host + "]"
+            return host
+
+    else:
+        # work around for missing str.isascii() in Python <= 3.6
+        @classmethod
+        def _encode_host(cls, host):
+            try:
+                ip, sep, zone = host.partition("%")
+                ip = ip_address(ip)
+            except ValueError:
+                host = host.lower()
+
+                for char in host:
+                    if char > "\x7f":
+                        break
+                else:
+                    return host
+                host = _idna_encode(host)
+            else:
+                host = ip.compressed
+                if sep:
+                    host += "%" + zone
+                if ip.version == 6:
+                    host = "[" + host + "]"
+            return host
+
+    @classmethod
+    def _make_netloc(cls, user, password, host, port, encode):
+        if encode:
+            ret = cls._encode_host(host)
+        else:
+            ret = host
+        if port:
+            ret = ret + ":" + str(port)
+        if password is not None:
+            if not user:
+                user = ""
+            else:
+                if encode:
+                    user = cls._QUOTER(user)
+            if encode:
+                password = cls._QUOTER(password)
+            user = user + ":" + password
+        elif user and encode:
+            user = cls._QUOTER(user)
+        if user:
+            ret = user + "@" + ret
+        return ret
+
+    def with_scheme(self, scheme):
+        """Return a new URL with scheme replaced."""
+        # N.B. doesn't cleanup query/fragment
+        if not isinstance(scheme, str):
+            raise TypeError("Invalid scheme type")
+        if not self.is_absolute():
+            raise ValueError("scheme replacement is not allowed for relative URLs")
+        return URL(self._val._replace(scheme=scheme.lower()), encoded=True)
+
+    def with_user(self, user):
+        """Return a new URL with user replaced.
+
+        Autoencode user if needed.
+
+        Clear user/password if user is None.
+
+        """
+        # N.B. doesn't cleanup query/fragment
+        val = self._val
+        if user is None:
+            password = None
+        elif isinstance(user, str):
+            user = self._QUOTER(user)
+            password = val.password
+        else:
+            raise TypeError("Invalid user type")
+        if not self.is_absolute():
+            raise ValueError("user replacement is not allowed for relative URLs")
+        return URL(
+            self._val._replace(
+                netloc=self._make_netloc(
+                    user, password, val.hostname, val.port, encode=True
+                )
+            ),
+            encoded=True,
+        )
+
+    def with_password(self, password):
+        """Return a new URL with password replaced.
+
+        Autoencode password if needed.
+
+        Clear password if argument is None.
+
+        """
+        # N.B. doesn't cleanup query/fragment
+        if password is None:
+            pass
+        elif isinstance(password, str):
+            password = self._QUOTER(password)
+        else:
+            raise TypeError("Invalid password type")
+        if not self.is_absolute():
+            raise ValueError("password replacement is not allowed for relative URLs")
+        val = self._val
+        return URL(
+            self._val._replace(
+                netloc=self._make_netloc(
+                    val.username, password, val.hostname, val.port, encode=True
+                )
+            ),
+            encoded=True,
+        )
+
+    def with_host(self, host):
+        """Return a new URL with host replaced.
+
+        Autoencode host if needed.
+
+        Changing host for relative URLs is not allowed, use .join()
+        instead.
+
+        """
+        # N.B. doesn't cleanup query/fragment
+        if not isinstance(host, str):
+            raise TypeError("Invalid host type")
+        if not self.is_absolute():
+            raise ValueError("host replacement is not allowed for relative URLs")
+        if not host:
+            raise ValueError("host removing is not allowed")
+        host = self._encode_host(host)
+        val = self._val
+        return URL(
+            self._val._replace(
+                netloc=self._make_netloc(
+                    val.username, val.password, host, val.port, encode=False
+                )
+            ),
+            encoded=True,
+        )
+
+    def with_port(self, port):
+        """Return a new URL with port replaced.
+
+        Clear port to default if None is passed.
+
+        """
+        # N.B. doesn't cleanup query/fragment
+        if port is not None and not isinstance(port, int):
+            raise TypeError("port should be int or None, got {}".format(type(port)))
+        if not self.is_absolute():
+            raise ValueError("port replacement is not allowed for relative URLs")
+        val = self._val
+        return URL(
+            self._val._replace(
+                netloc=self._make_netloc(
+                    val.username, val.password, val.hostname, port, encode=True
+                )
+            ),
+            encoded=True,
+        )
+
+    def with_path(self, path, *, encoded=False):
+        """Return a new URL with path replaced."""
+        if not encoded:
+            path = self._PATH_QUOTER(path)
+            if self.is_absolute():
+                path = self._normalize_path(path)
+        if len(path) > 0 and path[0] != "/":
+            path = "/" + path
+        return URL(self._val._replace(path=path, query="", fragment=""), encoded=True)
+
+    @classmethod
+    def _query_seq_pairs(cls, quoter, pairs):
+        for key, val in pairs:
+            if isinstance(val, (list, tuple)):
+                for v in val:
+                    yield quoter(key) + "=" + quoter(cls._query_var(v))
+            else:
+                yield quoter(key) + "=" + quoter(cls._query_var(val))
+
+    @staticmethod
+    def _query_var(v):
+        if isinstance(v, str):
+            return v
+        if type(v) is int:  # no subclasses like bool
+            return str(v)
+        raise TypeError(
+            "Invalid variable type: value "
+            "should be str or int, got {!r} "
+            "of type {}".format(v, type(v))
+        )
+
+    def _get_str_query(self, *args, **kwargs):
+        if kwargs:
+            if len(args) > 0:
+                raise ValueError(
+                    "Either kwargs or single query parameter must be present"
+                )
+            query = kwargs
+        elif len(args) == 1:
+            query = args[0]
+        else:
+            raise ValueError("Either kwargs or single query parameter must be present")
+
+        if query is None:
+            query = ""
+        elif isinstance(query, Mapping):
+            quoter = self._QUERY_PART_QUOTER
+            query = "&".join(self._query_seq_pairs(quoter, query.items()))
+        elif isinstance(query, str):
+            query = self._QUERY_QUOTER(query)
+        elif isinstance(query, (bytes, bytearray, memoryview)):
+            raise TypeError(
+                "Invalid query type: bytes, bytearray and memoryview are forbidden"
+            )
+        elif isinstance(query, Sequence):
+            quoter = self._QUERY_PART_QUOTER
+            # We don't expect sequence values if we're given a list of pairs
+            # already; only mappings like builtin `dict` which can't have the
+            # same key pointing to multiple values are allowed to use
+            # `_query_seq_pairs`.
+            query = "&".join(
+                quoter(k) + "=" + quoter(self._query_var(v)) for k, v in query
+            )
+        else:
+            raise TypeError(
+                "Invalid query type: only str, mapping or "
+                "sequence of (key, value) pairs is allowed"
+            )
+
+        return query
+
+    def with_query(self, *args, **kwargs):
+        """Return a new URL with query part replaced.
+
+        Accepts any Mapping (e.g. dict, multidict.MultiDict instances)
+        or str, autoencode the argument if needed.
+
+        A sequence of (key, value) pairs is supported as well.
+
+        It also can take an arbitrary number of keyword arguments.
+
+        Clear query if None is passed.
+
+        """
+        # N.B. doesn't cleanup query/fragment
+
+        new_query = self._get_str_query(*args, **kwargs)
+        return URL(
+            self._val._replace(path=self._val.path, query=new_query), encoded=True
+        )
+
+    def update_query(self, *args, **kwargs):
+        """Return a new URL with query part updated."""
+        s = self._get_str_query(*args, **kwargs)
+        new_query = MultiDict(parse_qsl(s, keep_blank_values=True))
+        query = MultiDict(self.query)
+        query.update(new_query)
+
+        return URL(self._val._replace(query=self._get_str_query(query)), encoded=True)
+
+    def with_fragment(self, fragment):
+        """Return a new URL with fragment replaced.
+
+        Autoencode fragment if needed.
+
+        Clear fragment to default if None is passed.
+
+        """
+        # N.B. doesn't cleanup query/fragment
+        if fragment is None:
+            raw_fragment = ""
+        elif not isinstance(fragment, str):
+            raise TypeError("Invalid fragment type")
+        else:
+            raw_fragment = self._FRAGMENT_QUOTER(fragment)
+        if self.raw_fragment == raw_fragment:
+            return self
+        return URL(self._val._replace(fragment=raw_fragment), encoded=True)
+
+    def with_name(self, name):
+        """Return a new URL with name (last part of path) replaced.
+
+        Query and fragment parts are cleaned up.
+
+        Name is encoded if needed.
+
+        """
+        # N.B. DOES cleanup query/fragment
+        if not isinstance(name, str):
+            raise TypeError("Invalid name type")
+        if "/" in name:
+            raise ValueError("Slash in name is not allowed")
+        name = self._PATH_QUOTER(name)
+        if name in (".", ".."):
+            raise ValueError(". and .. values are forbidden")
+        parts = list(self.raw_parts)
+        if self.is_absolute():
+            if len(parts) == 1:
+                parts.append(name)
+            else:
+                parts[-1] = name
+            parts[0] = ""  # replace leading '/'
+        else:
+            parts[-1] = name
+            if parts[0] == "/":
+                parts[0] = ""  # replace leading '/'
+        return URL(
+            self._val._replace(path="/".join(parts), query="", fragment=""),
+            encoded=True,
+        )
+
+    def join(self, url):
+        """Join URLs
+
+        Construct a full (“absolute”) URL by combining a “base URL”
+        (self) with another URL (url).
+
+        Informally, this uses components of the base URL, in
+        particular the addressing scheme, the network location and
+        (part of) the path, to provide missing components in the
+        relative URL.
+
+        """
+        # See docs for urllib.parse.urljoin
+        if not isinstance(url, URL):
+            raise TypeError("url should be URL")
+        return URL(urljoin(str(self), str(url)), encoded=True)
+
+    def human_repr(self):
+        """Return decoded human readable string for URL representation."""
+
+        return urlunsplit(
+            SplitResult(
+                self.scheme,
+                self._make_netloc(
+                    self.user, self.password, self.host, self._val.port, encode=False
+                ),
+                self.path,
+                self.query_string,
+                self.fragment,
+            )
+        )
+
+
+_MAXCACHE = 256
+
+
+@functools.lru_cache(_MAXCACHE)
+def _idna_decode(raw):
+    try:
+        return idna.decode(raw.encode("ascii"))
+    except UnicodeError:  # e.g. '::1'
+        return raw.encode("ascii").decode("idna")
+
+
+@functools.lru_cache(_MAXCACHE)
+def _idna_encode(host):
+    try:
+        return idna.encode(host, uts46=True).decode("ascii")
+    except UnicodeError:
+        return host.encode("idna").decode("ascii")
+
+
+@rewrite_module
+def cache_clear():
+    _idna_decode.cache_clear()
+    _idna_encode.cache_clear()
+
+
+@rewrite_module
+def cache_info():
+    return {
+        "idna_encode": _idna_encode.cache_info(),
+        "idna_decode": _idna_decode.cache_info(),
+    }
+
+
+@rewrite_module
+def cache_configure(*, idna_encode_size=_MAXCACHE, idna_decode_size=_MAXCACHE):
+    global _idna_decode, _idna_encode
+
+    _idna_encode = functools.lru_cache(idna_encode_size)(_idna_encode.__wrapped__)
+    _idna_decode = functools.lru_cache(idna_decode_size)(_idna_decode.__wrapped__)
diff --git a/venv/Lib/site-packages/yarl/py.typed b/venv/Lib/site-packages/yarl/py.typed
new file mode 100644
index 0000000..867e2c8
--- /dev/null
+++ b/venv/Lib/site-packages/yarl/py.typed
@@ -0,0 +1 @@
+# Placeholder
\ No newline at end of file
-- 
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