diff --git a/multidict/_multidict_py.py b/multidict/_multidict_py.py
index f9c8f38..bff8276 100644
--- a/multidict/_multidict_py.py
+++ b/multidict/_multidict_py.py
@@ -185,12 +185,13 @@ class MultiDict(_Base, abc.MutableMapping):
             elif hasattr(arg, 'items'):
                 items = arg.items()
             else:
+                items = []
                 for item in arg:
                     if not len(item) == 2:
                         raise TypeError(
                             "{} takes either dict or list of (key, value) "
                             "tuples".format(name))
-                items = arg
+                    items.append(item)
 
             for key, value in items:
                 method(key, value)

Python MultiDict constructor discards generator content
When using the pure Python implementation, if a `MultiDict` is constructed with a generator argument:

    headers = CIMultiDict(
        (
            k.decode('utf-8', 'surrogateescape'),
            v.decode('utf-8', 'surrogateescape'),
        )
        for k, v in event.headers
    )

then the resulting `MultiDict` will be empty, instead of containing the key/value pairs as expected. This is because the generator is iterated over twice, and the first iteration discards all of the pairs.
diff --git a/tests/test_multidict.py b/tests/test_multidict.py
index 8fa6e78..268a26e 100644
--- a/tests/test_multidict.py
+++ b/tests/test_multidict.py
@@ -73,6 +73,15 @@ class _BaseTest(_Root):
         self.assertEqual(sorted(d.items()), [('key', 'value1'),
                                              ('key2', 'value2')])
 
+    def test_instantiate__from_generator(self):
+        d = self.make_dict((str(i), i) for i in range(2))
+
+        self.assertEqual(d, {'0': 0, '1': 1})
+        self.assertEqual(len(d), 2)
+        self.assertEqual(sorted(d.keys()), ['0', '1'])
+        self.assertEqual(sorted(d.values()), [0, 1])
+        self.assertEqual(sorted(d.items()), [('0', 0), ('1', 1)])
+
     def test_getone(self):
         d = self.make_dict([('key', 'value1')], key='value2')
         self.assertEqual(d.getone('key'), 'value1')

pip install -e .
parse_log_pytest
requirements.txt
pytest
pip install -U -r requirements-dev.txt
3.5
requirements-dev.txt
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
alabaster==0.7.13
attrs==22.2.0
Babel==2.11.0
backcall==0.2.0
certifi==2021.5.30
charset-normalizer==2.0.12
coverage==6.2
Cython==3.0.12
decorator==5.1.1
distlib==0.3.9
docutils==0.17.1
filelock==3.4.1
flake8==5.0.4
idna==3.10
imagesize==1.4.1
importlib-metadata==4.2.0
importlib-resources==5.4.0
iniconfig==1.1.1
ipdb==0.13.13
ipython==7.16.3
ipython-genutils==0.2.0
jedi==0.17.2
Jinja2==3.0.3
MarkupSafe==2.0.1
mccabe==0.7.0
-e git+https://github.com/aio-libs/multidict.git@ae23ed4adbfff861bd2621223a0e50bb0313cf32#egg=multidict
packaging==21.3
parso==0.7.1
pexpect==4.9.0
pickleshare==0.7.5
platformdirs==2.4.0
pluggy==1.0.0
prompt-toolkit==3.0.36
ptyprocess==0.7.0
py==1.11.0
pycodestyle==2.9.1
pyenchant==3.2.2
pyflakes==2.5.0
Pygments==2.14.0
pyparsing==3.1.4
pytest==7.0.1
pytest-cov==4.0.0
pytest-sugar==0.9.6
pytz==2025.2
requests==2.27.1
six==1.17.0
snowballstemmer==2.2.0
Sphinx==4.3.2
sphinxcontrib-applehelp==1.0.2
sphinxcontrib-devhelp==1.0.2
sphinxcontrib-htmlhelp==2.0.0
sphinxcontrib-jsmath==1.0.1
sphinxcontrib-newsfeed==0.1.4
sphinxcontrib-qthelp==1.0.3
sphinxcontrib-serializinghtml==1.1.5
sphinxcontrib-spelling==7.7.0
termcolor==1.1.0
toml==0.10.2
tomli==1.2.3
tox==3.28.0
traitlets==4.3.3
typing_extensions==4.1.1
urllib3==1.26.20
virtualenv==20.16.2
wcwidth==0.2.13
zipp==3.6.0

name: multidict
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - ca-certificates=2025.2.25=h06a4308_0
  - certifi=2021.5.30=py36h06a4308_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.3=he6710b0_2
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - ncurses=6.4=h6a678d5_0
  - openssl=1.1.1w=h7f8727e_0
  - python=3.6.13=h12debd9_1
  - readline=8.2=h5eee18b_0
  - setuptools=58.0.4=py36h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - wheel=0.37.1=pyhd3eb1b0_0
  - xz=5.6.4=h5eee18b_1
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - alabaster==0.7.13
      - attrs==22.2.0
      - babel==2.11.0
      - backcall==0.2.0
      - charset-normalizer==2.0.12
      - coverage==6.2
      - cython==3.0.12
      - decorator==5.1.1
      - distlib==0.3.9
      - docutils==0.17.1
      - filelock==3.4.1
      - flake8==5.0.4
      - idna==3.10
      - imagesize==1.4.1
      - importlib-metadata==4.2.0
      - importlib-resources==5.4.0
      - iniconfig==1.1.1
      - ipdb==0.13.13
      - ipython==7.16.3
      - ipython-genutils==0.2.0
      - jedi==0.17.2
      - jinja2==3.0.3
      - markupsafe==2.0.1
      - mccabe==0.7.0
      - packaging==21.3
      - parso==0.7.1
      - pexpect==4.9.0
      - pickleshare==0.7.5
      - pip==21.3.1
      - platformdirs==2.4.0
      - pluggy==1.0.0
      - prompt-toolkit==3.0.36
      - ptyprocess==0.7.0
      - py==1.11.0
      - pycodestyle==2.9.1
      - pyenchant==3.2.2
      - pyflakes==2.5.0
      - pygments==2.14.0
      - pyparsing==3.1.4
      - pytest==7.0.1
      - pytest-cov==4.0.0
      - pytest-sugar==0.9.6
      - pytz==2025.2
      - requests==2.27.1
      - six==1.17.0
      - snowballstemmer==2.2.0
      - sphinx==4.3.2
      - sphinxcontrib-applehelp==1.0.2
      - sphinxcontrib-devhelp==1.0.2
      - sphinxcontrib-htmlhelp==2.0.0
      - sphinxcontrib-jsmath==1.0.1
      - sphinxcontrib-newsfeed==0.1.4
      - sphinxcontrib-qthelp==1.0.3
      - sphinxcontrib-serializinghtml==1.1.5
      - sphinxcontrib-spelling==7.7.0
      - termcolor==1.1.0
      - toml==0.10.2
      - tomli==1.2.3
      - tox==3.28.0
      - traitlets==4.3.3
      - typing-extensions==4.1.1
      - urllib3==1.26.20
      - virtualenv==20.16.2
      - wcwidth==0.2.13
      - zipp==3.6.0
prefix: /opt/conda/envs/multidict

tests/test_multidict.py::TestPyMultiDictProxy::test_instantiate__from_generator tests/test_multidict.py::PyMutableMultiDictTests::test_instantiate__from_generator
tests/test_multidict.py::TestPyMultiDictProxy::test__iter__ tests/test_multidict.py::TestPyMultiDictProxy::test__repr__ tests/test_multidict.py::TestPyMultiDictProxy::test_and tests/test_multidict.py::TestPyMultiDictProxy::test_and_issue_410 tests/test_multidict.py::TestPyMultiDictProxy::test_cannot_create_from_unaccepted tests/test_multidict.py::TestPyMultiDictProxy::test_copy tests/test_multidict.py::TestPyMultiDictProxy::test_eq tests/test_multidict.py::TestPyMultiDictProxy::test_exposed_names tests/test_multidict.py::TestPyMultiDictProxy::test_get tests/test_multidict.py::TestPyMultiDictProxy::test_getall tests/test_multidict.py::TestPyMultiDictProxy::test_getone tests/test_multidict.py::TestPyMultiDictProxy::test_instantiate__empty tests/test_multidict.py::TestPyMultiDictProxy::test_instantiate__from_arg0 tests/test_multidict.py::TestPyMultiDictProxy::test_instantiate__from_arg0_dict tests/test_multidict.py::TestPyMultiDictProxy::test_instantiate__with_kwargs tests/test_multidict.py::TestPyMultiDictProxy::test_isdisjoint tests/test_multidict.py::TestPyMultiDictProxy::test_isdisjoint2 tests/test_multidict.py::TestPyMultiDictProxy::test_items__contains tests/test_multidict.py::TestPyMultiDictProxy::test_items__repr__ tests/test_multidict.py::TestPyMultiDictProxy::test_keys__contains tests/test_multidict.py::TestPyMultiDictProxy::test_keys__repr__ tests/test_multidict.py::TestPyMultiDictProxy::test_keys_is_set_equal tests/test_multidict.py::TestPyMultiDictProxy::test_keys_is_set_greater tests/test_multidict.py::TestPyMultiDictProxy::test_keys_is_set_greater_equal tests/test_multidict.py::TestPyMultiDictProxy::test_keys_is_set_less tests/test_multidict.py::TestPyMultiDictProxy::test_keys_is_set_less_equal tests/test_multidict.py::TestPyMultiDictProxy::test_keys_is_set_not_equal tests/test_multidict.py::TestPyMultiDictProxy::test_ne tests/test_multidict.py::TestPyMultiDictProxy::test_or tests/test_multidict.py::TestPyMultiDictProxy::test_or_issue_410 tests/test_multidict.py::TestPyMultiDictProxy::test_preserve_stable_ordering tests/test_multidict.py::TestPyMultiDictProxy::test_repr_issue_410 tests/test_multidict.py::TestPyMultiDictProxy::test_sub tests/test_multidict.py::TestPyMultiDictProxy::test_sub_issue_410 tests/test_multidict.py::TestPyMultiDictProxy::test_values__contains tests/test_multidict.py::TestPyMultiDictProxy::test_values__repr__ tests/test_multidict.py::TestPyMultiDictProxy::test_xor tests/test_multidict.py::TestPyMultiDictProxy::test_xor_issue_410 tests/test_multidict.py::TestPyCIMultiDictProxy::test_basics tests/test_multidict.py::TestPyCIMultiDictProxy::test_copy tests/test_multidict.py::TestPyCIMultiDictProxy::test_exposed_names tests/test_multidict.py::TestPyCIMultiDictProxy::test_get tests/test_multidict.py::TestPyCIMultiDictProxy::test_getall tests/test_multidict.py::TestPyCIMultiDictProxy::test_items__repr__ tests/test_multidict.py::TestPyCIMultiDictProxy::test_keys__repr__ tests/test_multidict.py::TestPyCIMultiDictProxy::test_values__repr__ tests/test_multidict.py::PyMutableMultiDictTests::test__iter__ tests/test_multidict.py::PyMutableMultiDictTests::test__repr__ tests/test_multidict.py::PyMutableMultiDictTests::test_add tests/test_multidict.py::PyMutableMultiDictTests::test_and tests/test_multidict.py::PyMutableMultiDictTests::test_and_issue_410 tests/test_multidict.py::PyMutableMultiDictTests::test_cannot_create_from_unaccepted tests/test_multidict.py::PyMutableMultiDictTests::test_clear tests/test_multidict.py::PyMutableMultiDictTests::test_copy tests/test_multidict.py::PyMutableMultiDictTests::test_del tests/test_multidict.py::PyMutableMultiDictTests::test_eq tests/test_multidict.py::PyMutableMultiDictTests::test_exposed_names tests/test_multidict.py::PyMutableMultiDictTests::test_extend tests/test_multidict.py::PyMutableMultiDictTests::test_extend_from_proxy tests/test_multidict.py::PyMutableMultiDictTests::test_getall tests/test_multidict.py::PyMutableMultiDictTests::test_getone tests/test_multidict.py::PyMutableMultiDictTests::test_instantiate__empty tests/test_multidict.py::PyMutableMultiDictTests::test_instantiate__from_arg0 tests/test_multidict.py::PyMutableMultiDictTests::test_instantiate__from_arg0_dict tests/test_multidict.py::PyMutableMultiDictTests::test_instantiate__with_kwargs tests/test_multidict.py::PyMutableMultiDictTests::test_isdisjoint tests/test_multidict.py::PyMutableMultiDictTests::test_isdisjoint2 tests/test_multidict.py::PyMutableMultiDictTests::test_items__contains tests/test_multidict.py::PyMutableMultiDictTests::test_keys__contains tests/test_multidict.py::PyMutableMultiDictTests::test_keys_is_set_equal tests/test_multidict.py::PyMutableMultiDictTests::test_keys_is_set_greater tests/test_multidict.py::PyMutableMultiDictTests::test_keys_is_set_greater_equal tests/test_multidict.py::PyMutableMultiDictTests::test_keys_is_set_less tests/test_multidict.py::PyMutableMultiDictTests::test_keys_is_set_less_equal tests/test_multidict.py::PyMutableMultiDictTests::test_keys_is_set_not_equal tests/test_multidict.py::PyMutableMultiDictTests::test_ne tests/test_multidict.py::PyMutableMultiDictTests::test_or tests/test_multidict.py::PyMutableMultiDictTests::test_or_issue_410 tests/test_multidict.py::PyMutableMultiDictTests::test_pop tests/test_multidict.py::PyMutableMultiDictTests::test_pop_default tests/test_multidict.py::PyMutableMultiDictTests::test_pop_raises tests/test_multidict.py::PyMutableMultiDictTests::test_popitem tests/test_multidict.py::PyMutableMultiDictTests::test_popitem_empty_multidict tests/test_multidict.py::PyMutableMultiDictTests::test_repr_issue_410 tests/test_multidict.py::PyMutableMultiDictTests::test_set_default tests/test_multidict.py::PyMutableMultiDictTests::test_sub tests/test_multidict.py::PyMutableMultiDictTests::test_sub_issue_410 tests/test_multidict.py::PyMutableMultiDictTests::test_update tests/test_multidict.py::PyMutableMultiDictTests::test_values__contains tests/test_multidict.py::PyMutableMultiDictTests::test_xor tests/test_multidict.py::PyMutableMultiDictTests::test_xor_issue_410 tests/test_multidict.py::PyCIMutableMultiDictTests::test__repr__ tests/test_multidict.py::PyCIMutableMultiDictTests::test_add tests/test_multidict.py::PyCIMutableMultiDictTests::test_basics tests/test_multidict.py::PyCIMutableMultiDictTests::test_clear tests/test_multidict.py::PyCIMutableMultiDictTests::test_copy tests/test_multidict.py::PyCIMutableMultiDictTests::test_ctor tests/test_multidict.py::PyCIMutableMultiDictTests::test_del tests/test_multidict.py::PyCIMutableMultiDictTests::test_delitem tests/test_multidict.py::PyCIMutableMultiDictTests::test_exposed_names tests/test_multidict.py::PyCIMutableMultiDictTests::test_extend tests/test_multidict.py::PyCIMutableMultiDictTests::test_extend_from_proxy tests/test_multidict.py::PyCIMutableMultiDictTests::test_extend_with_upstr tests/test_multidict.py::PyCIMutableMultiDictTests::test_get tests/test_multidict.py::PyCIMutableMultiDictTests::test_getall tests/test_multidict.py::PyCIMutableMultiDictTests::test_items__repr__ tests/test_multidict.py::PyCIMutableMultiDictTests::test_keys__repr__ tests/test_multidict.py::PyCIMutableMultiDictTests::test_pop tests/test_multidict.py::PyCIMutableMultiDictTests::test_pop_default tests/test_multidict.py::PyCIMutableMultiDictTests::test_pop_raises tests/test_multidict.py::PyCIMutableMultiDictTests::test_popitem tests/test_multidict.py::PyCIMutableMultiDictTests::test_popitem_empty_multidict tests/test_multidict.py::PyCIMutableMultiDictTests::test_set_default tests/test_multidict.py::PyCIMutableMultiDictTests::test_setitem tests/test_multidict.py::PyCIMutableMultiDictTests::test_update tests/test_multidict.py::PyCIMutableMultiDictTests::test_values__repr__ tests/test_multidict.py::TestMultiDictProxy::test__iter__ tests/test_multidict.py::TestMultiDictProxy::test__repr__ tests/test_multidict.py::TestMultiDictProxy::test_and tests/test_multidict.py::TestMultiDictProxy::test_and_issue_410 tests/test_multidict.py::TestMultiDictProxy::test_cannot_create_from_unaccepted tests/test_multidict.py::TestMultiDictProxy::test_copy tests/test_multidict.py::TestMultiDictProxy::test_eq tests/test_multidict.py::TestMultiDictProxy::test_exposed_names tests/test_multidict.py::TestMultiDictProxy::test_get tests/test_multidict.py::TestMultiDictProxy::test_getall tests/test_multidict.py::TestMultiDictProxy::test_getone tests/test_multidict.py::TestMultiDictProxy::test_instantiate__empty tests/test_multidict.py::TestMultiDictProxy::test_instantiate__from_arg0 tests/test_multidict.py::TestMultiDictProxy::test_instantiate__from_arg0_dict tests/test_multidict.py::TestMultiDictProxy::test_instantiate__from_generator tests/test_multidict.py::TestMultiDictProxy::test_instantiate__with_kwargs tests/test_multidict.py::TestMultiDictProxy::test_isdisjoint tests/test_multidict.py::TestMultiDictProxy::test_isdisjoint2 tests/test_multidict.py::TestMultiDictProxy::test_items__contains tests/test_multidict.py::TestMultiDictProxy::test_items__repr__ tests/test_multidict.py::TestMultiDictProxy::test_keys__contains tests/test_multidict.py::TestMultiDictProxy::test_keys__repr__ tests/test_multidict.py::TestMultiDictProxy::test_keys_is_set_equal tests/test_multidict.py::TestMultiDictProxy::test_keys_is_set_greater tests/test_multidict.py::TestMultiDictProxy::test_keys_is_set_greater_equal tests/test_multidict.py::TestMultiDictProxy::test_keys_is_set_less tests/test_multidict.py::TestMultiDictProxy::test_keys_is_set_less_equal tests/test_multidict.py::TestMultiDictProxy::test_keys_is_set_not_equal tests/test_multidict.py::TestMultiDictProxy::test_ne tests/test_multidict.py::TestMultiDictProxy::test_or tests/test_multidict.py::TestMultiDictProxy::test_or_issue_410 tests/test_multidict.py::TestMultiDictProxy::test_preserve_stable_ordering tests/test_multidict.py::TestMultiDictProxy::test_repr_issue_410 tests/test_multidict.py::TestMultiDictProxy::test_sub tests/test_multidict.py::TestMultiDictProxy::test_sub_issue_410 tests/test_multidict.py::TestMultiDictProxy::test_values__contains tests/test_multidict.py::TestMultiDictProxy::test_values__repr__ tests/test_multidict.py::TestMultiDictProxy::test_xor tests/test_multidict.py::TestMultiDictProxy::test_xor_issue_410 tests/test_multidict.py::TestCIMultiDictProxy::test_basics tests/test_multidict.py::TestCIMultiDictProxy::test_copy tests/test_multidict.py::TestCIMultiDictProxy::test_exposed_names tests/test_multidict.py::TestCIMultiDictProxy::test_get tests/test_multidict.py::TestCIMultiDictProxy::test_getall tests/test_multidict.py::TestCIMultiDictProxy::test_items__repr__ tests/test_multidict.py::TestCIMultiDictProxy::test_keys__repr__ tests/test_multidict.py::TestCIMultiDictProxy::test_values__repr__ tests/test_multidict.py::MutableMultiDictTests::test__iter__ tests/test_multidict.py::MutableMultiDictTests::test__repr__ tests/test_multidict.py::MutableMultiDictTests::test_add tests/test_multidict.py::MutableMultiDictTests::test_and tests/test_multidict.py::MutableMultiDictTests::test_and_issue_410 tests/test_multidict.py::MutableMultiDictTests::test_cannot_create_from_unaccepted tests/test_multidict.py::MutableMultiDictTests::test_clear tests/test_multidict.py::MutableMultiDictTests::test_copy tests/test_multidict.py::MutableMultiDictTests::test_del tests/test_multidict.py::MutableMultiDictTests::test_eq tests/test_multidict.py::MutableMultiDictTests::test_exposed_names tests/test_multidict.py::MutableMultiDictTests::test_extend tests/test_multidict.py::MutableMultiDictTests::test_extend_from_proxy tests/test_multidict.py::MutableMultiDictTests::test_getall tests/test_multidict.py::MutableMultiDictTests::test_getone tests/test_multidict.py::MutableMultiDictTests::test_instantiate__empty tests/test_multidict.py::MutableMultiDictTests::test_instantiate__from_arg0 tests/test_multidict.py::MutableMultiDictTests::test_instantiate__from_arg0_dict tests/test_multidict.py::MutableMultiDictTests::test_instantiate__from_generator tests/test_multidict.py::MutableMultiDictTests::test_instantiate__with_kwargs tests/test_multidict.py::MutableMultiDictTests::test_isdisjoint tests/test_multidict.py::MutableMultiDictTests::test_isdisjoint2 tests/test_multidict.py::MutableMultiDictTests::test_items__contains tests/test_multidict.py::MutableMultiDictTests::test_keys__contains tests/test_multidict.py::MutableMultiDictTests::test_keys_is_set_equal tests/test_multidict.py::MutableMultiDictTests::test_keys_is_set_greater tests/test_multidict.py::MutableMultiDictTests::test_keys_is_set_greater_equal tests/test_multidict.py::MutableMultiDictTests::test_keys_is_set_less tests/test_multidict.py::MutableMultiDictTests::test_keys_is_set_less_equal tests/test_multidict.py::MutableMultiDictTests::test_keys_is_set_not_equal tests/test_multidict.py::MutableMultiDictTests::test_ne tests/test_multidict.py::MutableMultiDictTests::test_or tests/test_multidict.py::MutableMultiDictTests::test_or_issue_410 tests/test_multidict.py::MutableMultiDictTests::test_pop tests/test_multidict.py::MutableMultiDictTests::test_pop_default tests/test_multidict.py::MutableMultiDictTests::test_pop_raises tests/test_multidict.py::MutableMultiDictTests::test_popitem tests/test_multidict.py::MutableMultiDictTests::test_popitem_empty_multidict tests/test_multidict.py::MutableMultiDictTests::test_repr_issue_410 tests/test_multidict.py::MutableMultiDictTests::test_set_default tests/test_multidict.py::MutableMultiDictTests::test_sub tests/test_multidict.py::MutableMultiDictTests::test_sub_issue_410 tests/test_multidict.py::MutableMultiDictTests::test_update tests/test_multidict.py::MutableMultiDictTests::test_values__contains tests/test_multidict.py::MutableMultiDictTests::test_xor tests/test_multidict.py::MutableMultiDictTests::test_xor_issue_410 tests/test_multidict.py::CIMutableMultiDictTests::test__repr__ tests/test_multidict.py::CIMutableMultiDictTests::test_add tests/test_multidict.py::CIMutableMultiDictTests::test_basics tests/test_multidict.py::CIMutableMultiDictTests::test_clear tests/test_multidict.py::CIMutableMultiDictTests::test_copy tests/test_multidict.py::CIMutableMultiDictTests::test_ctor tests/test_multidict.py::CIMutableMultiDictTests::test_del tests/test_multidict.py::CIMutableMultiDictTests::test_delitem tests/test_multidict.py::CIMutableMultiDictTests::test_exposed_names tests/test_multidict.py::CIMutableMultiDictTests::test_extend tests/test_multidict.py::CIMutableMultiDictTests::test_extend_from_proxy tests/test_multidict.py::CIMutableMultiDictTests::test_extend_with_upstr tests/test_multidict.py::CIMutableMultiDictTests::test_get tests/test_multidict.py::CIMutableMultiDictTests::test_getall tests/test_multidict.py::CIMutableMultiDictTests::test_items__repr__ tests/test_multidict.py::CIMutableMultiDictTests::test_keys__repr__ tests/test_multidict.py::CIMutableMultiDictTests::test_pop tests/test_multidict.py::CIMutableMultiDictTests::test_pop_default tests/test_multidict.py::CIMutableMultiDictTests::test_pop_raises tests/test_multidict.py::CIMutableMultiDictTests::test_popitem tests/test_multidict.py::CIMutableMultiDictTests::test_popitem_empty_multidict tests/test_multidict.py::CIMutableMultiDictTests::test_set_default tests/test_multidict.py::CIMutableMultiDictTests::test_setitem tests/test_multidict.py::CIMutableMultiDictTests::test_update tests/test_multidict.py::CIMutableMultiDictTests::test_values__repr__ tests/test_multidict.py::TestPyUpStr::test_ctor tests/test_multidict.py::TestPyUpStr::test_ctor_buffer tests/test_multidict.py::TestPyUpStr::test_ctor_repr tests/test_multidict.py::TestPyUpStr::test_ctor_str tests/test_multidict.py::TestPyUpStr::test_ctor_str_uppercase tests/test_multidict.py::TestPyUpStr::test_upper tests/test_multidict.py::TestUpStr::test_ctor tests/test_multidict.py::TestUpStr::test_ctor_buffer tests/test_multidict.py::TestUpStr::test_ctor_repr tests/test_multidict.py::TestUpStr::test_ctor_str tests/test_multidict.py::TestUpStr::test_ctor_str_uppercase tests/test_multidict.py::TestUpStr::test_upper tests/test_multidict.py::TestPyTypes::test_create_ci_multidict_proxy_from_multidict tests/test_multidict.py::TestPyTypes::test_create_cimultidict_proxy_from_nonmultidict tests/test_multidict.py::TestPyTypes::test_create_multidict_proxy_from_cimultidict tests/test_multidict.py::TestPyTypes::test_create_multidict_proxy_from_nonmultidict tests/test_multidict.py::TestPyTypes::test_dict_not_inherited_from_proxy tests/test_multidict.py::TestPyTypes::test_dicts tests/test_multidict.py::TestPyTypes::test_proxies tests/test_multidict.py::TestPyTypes::test_proxy_not_inherited_from_dict tests/test_multidict.py::TestTypes::test_create_ci_multidict_proxy_from_multidict tests/test_multidict.py::TestTypes::test_create_cimultidict_proxy_from_nonmultidict tests/test_multidict.py::TestTypes::test_create_multidict_proxy_from_cimultidict tests/test_multidict.py::TestTypes::test_create_multidict_proxy_from_nonmultidict tests/test_multidict.py::TestTypes::test_dict_not_inherited_from_proxy tests/test_multidict.py::TestTypes::test_dicts tests/test_multidict.py::TestTypes::test_proxies tests/test_multidict.py::TestTypes::test_proxy_not_inherited_from_dict
multidict/_multidict_py.py
multidict/_multidict_py.py