[Python-checkins] bpo-44524: Add missed __name__ and __qualname__ to typing module objects (#27237)
ambv
webhook-mailer at python.org
Mon Jul 19 13:22:32 EDT 2021
https://github.com/python/cpython/commit/bce1418541a64a793960182772f985f64afbfa1a
commit: bce1418541a64a793960182772f985f64afbfa1a
branch: main
author: Yurii Karabas <1998uriyyo at gmail.com>
committer: ambv <lukasz at langa.pl>
date: 2021-07-19T19:22:12+02:00
summary:
bpo-44524: Add missed __name__ and __qualname__ to typing module objects (#27237)
Co-authored-by: Ken Jin <28750310+Fidget-Spinner at users.noreply.github.com>
files:
A Misc/NEWS.d/next/Library/2021-07-19-14-04-42.bpo-44524.Nbf2JC.rst
M Lib/test/test_typing.py
M Lib/typing.py
diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index da6775eb48634..b696447d0982b 100644
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -4498,6 +4498,67 @@ def test_no_isinstance(self):
issubclass(int, TypeGuard)
+class SpecialAttrsTests(BaseTestCase):
+ def test_special_attrs(self):
+ cls_to_check = (
+ # ABC classes
+ typing.AbstractSet,
+ typing.AsyncContextManager,
+ typing.AsyncGenerator,
+ typing.AsyncIterable,
+ typing.AsyncIterator,
+ typing.Awaitable,
+ typing.ByteString,
+ typing.Callable,
+ typing.ChainMap,
+ typing.Collection,
+ typing.Container,
+ typing.ContextManager,
+ typing.Coroutine,
+ typing.Counter,
+ typing.DefaultDict,
+ typing.Deque,
+ typing.Dict,
+ typing.FrozenSet,
+ typing.Generator,
+ typing.Hashable,
+ typing.ItemsView,
+ typing.Iterable,
+ typing.Iterator,
+ typing.KeysView,
+ typing.List,
+ typing.Mapping,
+ typing.MappingView,
+ typing.MutableMapping,
+ typing.MutableSequence,
+ typing.MutableSet,
+ typing.OrderedDict,
+ typing.Reversible,
+ typing.Sequence,
+ typing.Set,
+ typing.Sized,
+ typing.Tuple,
+ typing.Type,
+ typing.ValuesView,
+ # Special Forms
+ typing.Any,
+ typing.NoReturn,
+ typing.ClassVar,
+ typing.Final,
+ typing.Union,
+ typing.Optional,
+ typing.Literal,
+ typing.TypeAlias,
+ typing.Concatenate,
+ typing.TypeGuard,
+ )
+
+ for cls in cls_to_check:
+ with self.subTest(cls=cls):
+ self.assertEqual(cls.__name__, cls._name)
+ self.assertEqual(cls.__qualname__, cls._name)
+ self.assertEqual(cls.__module__, 'typing')
+
class AllTests(BaseTestCase):
"""Tests for __all__."""
diff --git a/Lib/typing.py b/Lib/typing.py
index 59f3ca39c1edd..4a6efee802042 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -358,6 +358,12 @@ def __init__(self, getitem):
self._name = getitem.__name__
self.__doc__ = getitem.__doc__
+ def __getattr__(self, item):
+ if item in {'__name__', '__qualname__'}:
+ return self._name
+
+ raise AttributeError(item)
+
def __mro_entries__(self, bases):
raise TypeError(f"Cannot subclass {self!r}")
@@ -935,6 +941,9 @@ def __mro_entries__(self, bases):
return tuple(res)
def __getattr__(self, attr):
+ if attr in {'__name__', '__qualname__'}:
+ return self._name
+
# We are careful for copy and pickle.
# Also for simplicity we just don't relay all dunder names
if '__origin__' in self.__dict__ and not _is_dunder(attr):
diff --git a/Misc/NEWS.d/next/Library/2021-07-19-14-04-42.bpo-44524.Nbf2JC.rst b/Misc/NEWS.d/next/Library/2021-07-19-14-04-42.bpo-44524.Nbf2JC.rst
new file mode 100644
index 0000000000000..0acdc7dff029f
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2021-07-19-14-04-42.bpo-44524.Nbf2JC.rst
@@ -0,0 +1,2 @@
+Add missing ``__name__`` and ``__qualname__`` attributes to ``typing`` module
+classes. Patch provided by Yurii Karabas.
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