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bpo-44904: Fix classmethod property bug in doctest module (GH-28838)

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The doctest module raised an error if a docstring contained an example that
attempted to access a classmethod property. (Stacking '@classmethod' on top of
`@property` has been supported since Python 3.9; see
https://docs.python.org/3/howto/descriptor.htmlGH-class-methods.)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
(cherry picked from commit b1302abcc8)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
This commit is contained in:
Miss Islington (bot) 2021-10-28 01:13:45 -07:00 • committed by GitHub
parent 21150c6fa3
commit 8365a5b5ab
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4 changed files with 21 additions and 4 deletions
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6
Lib/doctest.py
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@ -1022,10 +1022,8 @@ class DocTestFinder:
if inspect.isclass(obj) and self._recurse:
for valname, val in obj.__dict__.items():
# Special handling for staticmethod/classmethod.
if isinstance(val, staticmethod):
val = getattr(obj, valname)
if isinstance(val, classmethod):
val = getattr(obj, valname).__func__
if isinstance(val, (staticmethod, classmethod)):
val = val.__func__
# Recurse to methods, properties, and nested classes.
if ((inspect.isroutine(val) or inspect.isclass(val) or