[3.13] gh-123339: Fix cases of inconsistency of __module__ and __firstlineno__ in classes (GH-123613) (#124735)

* Setting the __module__ attribute for a class now removes the
  __firstlineno__ item from the type's dict.
* The _collections_abc and _pydecimal modules now completely replace the
  collections.abc and decimal modules after importing them. This
  allows to get the source of classes and functions defined in these
  modules.
* inspect.findsource() now checks whether the first line number for a
  class is out of bound.
(cherry picked from commit 69a4063ca5)
This commit is contained in:
Serhiy Storchaka 2024-09-30 07:21:40 +03:00 committed by GitHub
parent ce0eaa6703
commit 5bf32d1300
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11 changed files with 110 additions and 12 deletions

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@ -4381,7 +4381,8 @@ class CheckAttributes(unittest.TestCase):
self.assertEqual(C.__version__, P.__version__)
self.assertEqual(dir(C), dir(P))
self.assertLessEqual(set(dir(C)), set(dir(P)))
self.assertEqual([n for n in dir(C) if n[:2] != '__'], sorted(P.__all__))
def test_context_attributes(self):