Chuan Yu Foo created BEAM-5490:
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             Summary: 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: Ahmet Altay


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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