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https://issues.apache.org/jira/browse/BEAM-8482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16959327#comment-16959327
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Valentyn Tymofieiev commented on BEAM-8482:
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See also:
https://issues.apache.org/jira/browse/BEAM-8397?focusedCommentId=16958414&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16958414
> Beam transforms declared inside a method fail to pickle.
> --------------------------------------------------------
>
> Key: BEAM-8482
> URL: https://issues.apache.org/jira/browse/BEAM-8482
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Reporter: Valentyn Tymofieiev
> Priority: Major
>
> {noformat}
> from apache_beam.internal import pickler
>
>
>
>
>
>
>
> class Outter():
>
> def method(self):
>
> class InnerA(object):
>
> def __init__(self):
>
> pass
>
>
>
> class InnerB(InnerA):
>
> def __init__(self):
>
> super(InnerB, self).__init__()
>
>
>
> o = InnerB()
>
> pickler.loads(pickler.dumps(o))
>
>
>
> c = Outter()
>
> c.method()
> {noformat}
> fails with
> {noformat}
> RuntimeError: maximum recursion depth exceeded while getting the str of an
> object
> {noformat}
> Workaround: declare the transforms on the module level.
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