Valentyn Tymofieiev created BEAM-10217:
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Summary: 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
Following 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}
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