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Author rmccampbell7
Recipients rmccampbell7
Date 2020-02-08.21:01:31
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Marked as misclassified Yes
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In Python 3.6 the following works:

class HexInt(int):
    def __repr__(self):
        return hex(self)

class MyEnum(HexInt, enum.Enum):
    A = 1
    B = 2
    C = 3

>>> MyEnum.A
<MyEnum.A: 0x1>

However in Python 3.7/8 it instead prints
>>> MyEnum.A

It uses HexInt's repr instead of Enum's. Looking at the module it seems that this occurs for mixin classes that don't define __new__ due to a change in the _get_mixins_ method. If I define a __new__ method on the HexInt class then the expected behavior occurs.
Date User Action Args
2020-02-08 21:01:31rmccampbell7setrecipients: + rmccampbell7
2020-02-08 21:01:31rmccampbell7setmessageid: <>
2020-02-08 21:01:31rmccampbell7linkissue39587 messages
2020-02-08 21:01:31rmccampbell7create