New submission from Denis Osipov <osipo...@list.ru>:
Customizing module attribute access example raises RecursionError:
>>> import sys
>>> from types import ModuleType
>>> class VerboseModule(ModuleType):
... def __repr__(self):
... return f'Verbose {self.__name__}'
... def __setattr__(self, attr, value):
... print(f'Setting {attr}...')
... setattr(self, attr, value)
...
>>> sys.modules[__name__].__class__ = VerboseModule
>>> sys.modules[__name__].a = 5
Setting a...
<...>
Setting a...
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 6, in __setattr__
File "<stdin>", line 6, in __setattr__
File "<stdin>", line 6, in __setattr__
[Previous line repeated 495 more times]
File "<stdin>", line 5, in __setattr__
RecursionError: maximum recursion depth exceeded while calling a Python object
Setting a...>>>
Something like this can fix it:
def __setattr__(self, attr, value):
... print(f'Setting {attr}...')
... super().setattr(self, attr, value)
----------
assignee: docs@python
components: Documentation
messages: 328966
nosy: denis-osipov, docs@python
priority: normal
severity: normal
status: open
title: Customizing module attribute access example raises RecursionError
type: behavior
versions: Python 3.7, Python 3.8
_______________________________________
Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue35119>
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