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https://issues.apache.org/jira/browse/FLINK-19892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17223443#comment-17223443
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Nicholas Jiang commented on FLINK-19892:
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[~hxbks2ks], have you already completed for this issue? If not, could you
please assign this to me?
> Replace __metaclass__ field with metaclass keyword
> --------------------------------------------------
>
> Key: FLINK-19892
> URL: https://issues.apache.org/jira/browse/FLINK-19892
> Project: Flink
> Issue Type: New Feature
> Components: API / Python
> Reporter: Huang Xingbo
> Priority: Major
>
> __metaclass__ is not compatible in some scenarios of python3 e.g.
>
> {code:java}
> >>> from pyflink.serializers import Serializer
> >>> import inspect
> >>> inspect.isabstract(Serializer)
> False{code}
>
> We can replace __metaclass__ field with
> [metaclass|https://www.python.org/dev/peps/pep-3115/] keyword to solve these
> problem.
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