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https://issues.apache.org/jira/browse/THRIFT-4531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16415439#comment-16415439
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Can Celasun commented on THRIFT-4531:
-------------------------------------
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> Thrift generates wrong Python code for immutable structures with optional
> members
> ---------------------------------------------------------------------------------
>
> Key: THRIFT-4531
> URL: https://issues.apache.org/jira/browse/THRIFT-4531
> Project: Thrift
> Issue Type: Bug
> Components: Compiler (General)
> Affects Versions: 0.11.0
> Reporter: Margar Simonyan
> Priority: Major
>
> In order to make generated Python structs hashable one needs to add
> ( python.immutable; )
> annotation. This is true for Python 3, in Python 2 technically the annotation
> is not mandatory, however leads to undesirable situation, when equal objects
> have different hash values.
> If the struct has optional members, then the generated code for read(...)
> method is wrong and results into undefined local variable error. To fix the
> issue these variables need to be added to beginning of read(...) method and
> initialized to None or default values if available.
> I have a patch for generate\t_py_generator.cc to fix the issue, but I am not
> familiar with your procedures for contributors.
>
>
>
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