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gh-151728: Partially revert "Clear the typing caches at interpreter shutdown (GH-154858)" #154992

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Merged
encukou merged 1 commit into from
Jul 31, 2026
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gh-151728: Partially revert "Clear the typing caches at interpreter shutdown (GH-154858)" #154992

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6 changes: 0 additions & 6 deletions Lib/typing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,6 @@
"""

from abc import abstractmethod, ABCMeta
import atexit
import collections
from collections import defaultdict
import collections.abc
Expand Down Expand Up @@ -398,11 +397,6 @@ def _clear_caches():
cleanup()


# Release the LRU caches at shutdown, they otherwise redistribute reference
# leaks of one extension to types of unrelated ones. See GH-151728.
atexit.register(_clear_caches)


def _tp_cache(func=None, /, *, typed=False):
"""Internal wrapper caching __getitem__ of generic types.

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4 changes: 0 additions & 4 deletions Misc/NEWS.d/next/Library/2026-07-29-11-05-00.gh-issue-151728.Kq3vTn.rst
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