Luke Zhu created BEAM-3730:
------------------------------
Summary: typehints.TypeVariable issues with __hash__
Key: BEAM-3730
URL: https://issues.apache.org/jira/browse/BEAM-3730
Project: Beam
Issue Type: Bug
Components: sdk-py-core
Reporter: Luke Zhu
Assignee: Ahmet Altay
This class currently does not define a __hash__ function. This defies the
assumption made by sets and dicts which contain TypeConstraint objects.
In Python 3, classes which define ___eq___ also need to explicitly define
___hash___ to be hashable. However, this causes
_combiners_test.CombineTest.test_to_list_and_to_dict_ to throw an error in
slow_stream.py (adding NoneType and long).
There are multiple TypeVariable instances with name 'K' or 'V' throughout the
codebase. The equality of these instances may possibly cause issues.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
