[Python-Dev] Re: Importing a submodule doesn't always set an attribute on its parent

2022年4月09日 02:16:26 -0700

2022年04月09日 04:24 UTC, Terry Reedy <[email protected]>は書いた:
> Perhaps something intentionally vague like
>
> "Manual deletion of entries from sys.modules may invalidate statements
> above, even after re-imports."
>
> or
>
> "Manual deletion of entries from sys.modules may result in surprising
> behavior, even after re-imports."
Not only deletion, but also random assignments:
>>> import sys
>>> import collections.abc
>>> sys.modules['collections'] = 1
>>> import collections.abc
>>> collections.abc
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
AttributeError: 'int' object has no attribute 'abc'
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