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bpo-29638: Fix spurious refleaks after typing is imported (#469) (#483)

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Ivan Levkivskyi 2017-03-05 20:18:43 +01:00 • committed by Serhiy Storchaka
parent 3405792b02
commit b414e349eb
1 changed files with 8 additions and 3 deletions
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11
Lib/test/libregrtest/refleak.py
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@ -143,9 +143,14 @@ def dash_R_cleanup(fs, ps, pic, zdc, abcs):
sys._clear_type_cache() sys._clear_type_cache()
# Clear ABC registries, restoring previously saved ABC registries. # Clear ABC registries, restoring previously saved ABC registries.
for abc in [getattr(collections.abc, a) for a in collections.abc.__all__]: abs_classes = [getattr(collections.abc, a) for a in collections.abc.__all__]
if not isabstract(abc): abs_classes = filter(isabstract, abs_classes)
continue if 'typing' in sys.modules:
t = sys.modules['typing']
# These classes require special treatment because they do not appear
# in direct subclasses of collections.abc classes
abs_classes = list(abs_classes) + [t.ChainMap, t.Counter, t.DefaultDict]
for abc in abs_classes:
for obj in abc.__subclasses__() + [abc]: for obj in abc.__subclasses__() + [abc]:
obj._abc_registry = abcs.get(obj, WeakSet()).copy() obj._abc_registry = abcs.get(obj, WeakSet()).copy()
obj._abc_cache.clear() obj._abc_cache.clear()