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https://issues.apache.org/jira/browse/BEAM-5490?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Valentyn Tymofieiev resolved BEAM-5490.
---------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.9.0

Closing this as modifications to instpect.getargspec are reverted  since 2.9.0.

> Beam should not irreversibly modify inspect.getargspec
> ------------------------------------------------------
>
>                 Key: BEAM-5490
>                 URL: https://issues.apache.org/jira/browse/BEAM-5490
>             Project: Beam
>          Issue Type: Bug
>          Components: sdk-py-core
>            Reporter: Chuan Yu Foo
>            Assignee: Valentyn Tymofieiev
>            Priority: Major
>             Fix For: 2.9.0
>
>
> In the Python SDK, in {{typehints/decorators.py}}, Beam irreversibly 
> monkey-patches {{inspect.getargspec}} for its own purposes. This is really 
> bad form, since it leads to hard to debug issues in other modules which also 
> use {{inspect.getargspec}} when Beam is imported. 
> Beam should either maintain its own modified copy of the functions it needs, 
> or else it should always reverse the monkey-patching so that it does not 
> affect other modules.



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