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[3.12] gh-121084: Fix test_typing random leaks (GH-121360) (#121372)

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gh-121084: Fix test_typing random leaks (GH-121360)

Clear typing ABC caches when running tests for refleaks (-R option):
call _abc_caches_clear() on typing abstract classes and their
subclasses.
(cherry picked from commit 5f660e8e2c)

Co-authored-by: Victor Stinner <vstinner@python.org>
This commit is contained in:
Miss Islington (bot) 2024-07-04 20:00:08 +02:00 • committed by GitHub
parent 8d3f44ad01
commit 4bf4cc22c4
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6
Lib/test/libregrtest/utils.py
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@ -264,6 +264,12 @@ def clear_caches():
for f in typing._cleanups: for f in typing._cleanups:
f() f()
import inspect
abs_classes = filter(inspect.isabstract, typing.__dict__.values())
for abc in abs_classes:
for obj in abc.__subclasses__() + [abc]:
obj._abc_caches_clear()
try: try:
fractions = sys.modules['fractions'] fractions = sys.modules['fractions']
except KeyError: except KeyError:

3
Misc/NEWS.d/next/Tests/2024-07-04-15-10-29.gh-issue-121084.qxcd5d.rst Normal file
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@ -0,0 +1,3 @@
Fix test_typing random leaks. Clear typing ABC caches when running tests for
refleaks (``-R`` option): call ``_abc_caches_clear()`` on typing abstract
classes and their subclasses. Patch by Victor Stinner.