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https://issues.apache.org/jira/browse/BEAM-10217?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Valentyn Tymofieiev closed BEAM-10217.
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Fix Version/s: Not applicable
Resolution: Fixed
> Suboptimal type inference on Python 3.6
> ---------------------------------------
>
> Key: BEAM-10217
> URL: https://issues.apache.org/jira/browse/BEAM-10217
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Reporter: Valentyn Tymofieiev
> Assignee: Udi Meiri
> Priority: P2
> Fix For: Not applicable
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> Following trivial_inference_test fails for me with AssertionError: ::
> List[Tuple[Person, int]] != List[Any] on Python 3.6.8; Passed on 3.5.2, 3.5.6
> and 3.7.3.
> {noformat}
> def testMethodReturnsTuple(self):
> class Person(object):
> def __init__(self, name):
> self.name = name
> def parse_record(name_and_age):
> name, age = name_and_age.split(',')
> return Person(name), int(age)
> self.assertReturnType(typehints.List[typehints.Tuple[Person, int]],
> lambda record: [parse_record(record)], [str])
> {noformat}
> See: https://github.com/apache/beam/pull/11954.
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