Iconsistency in optional fields between Java/C# and python
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Key: THRIFT-1528
URL: https://issues.apache.org/jira/browse/THRIFT-1528
Project: Thrift
Issue Type: Bug
Components: Python - Compiler
Affects Versions: 0.8
Reporter: Stefan Gmeiner
Priority: Minor
If a struct contains optional fields with default values the generated python
code serialize differently than Java or C# code.
In Java or C# optional fields are only serialized if a field was set by the
client. If not the field is omited during serialization. This is possible
because C#/Java maintains for each field a 'isset'-boolean which records if a
field was set or not.
However the generated python code does not have such a 'isset'-structure. It
writes every field which is not equal None. As the constructor initialize the
optional fields with their default value, these fields are written whether they
are set or not.
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