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gh-140808: Remove __class_getitem__ from mailbox._ProxyFile (#140838)

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Co-authored-by: Emma Smith <emma@emmatyping.dev>
This commit is contained in:
Sebastian Rittau
2025-11-02 22:56:59 +01:00
committed by GitHub
parent 6d45cd8dbb
commit 9e5628ad68
3 changed files with 3 additions and 4 deletions
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2
Lib/mailbox.py
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@@ -2090,8 +2090,6 @@ class _ProxyFile:
return False return False
return self._file.closed return self._file.closed
__class_getitem__ = classmethod(GenericAlias)
class _PartialFile(_ProxyFile): class _PartialFile(_ProxyFile):
"""A read-only wrapper of part of a file.""" """A read-only wrapper of part of a file."""

4
Lib/test/test_genericalias.py
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@@ -17,7 +17,7 @@ from dataclasses import Field
from functools import partial, partialmethod, cached_property from functools import partial, partialmethod, cached_property
from graphlib import TopologicalSorter from graphlib import TopologicalSorter
from logging import LoggerAdapter, StreamHandler from logging import LoggerAdapter, StreamHandler
from mailbox import Mailbox, _PartialFile from mailbox import Mailbox
try: try:
import ctypes import ctypes
except ImportError: except ImportError:
@@ -117,7 +117,7 @@ class BaseTest(unittest.TestCase):
Iterable, Iterator, Iterable, Iterator,
Reversible, Reversible,
Container, Collection, Container, Collection,
Mailbox, _PartialFile, Mailbox,
ContextVar, Token, ContextVar, Token,
Field, Field,
Set, MutableSet, Set, MutableSet,

1
Misc/NEWS.d/next/Library/2025-10-31-16-25-13.gh-issue-140808.XBiQ4j.rst Normal file
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@@ -0,0 +1 @@
The internal class ``mailbox._ProxyFile`` is no longer a parameterized generic.