[New-bugs-announce] [issue30545] Enum equality across modules: comparing objects instead of values

[Madhav Datt]

New submission from Madhav Datt:

The problem is described with an example in this StackOverflow question (https://stackoverflow.com/questions/26589805/python-enums-across-modules). Like in C and other languages, I would expect Enum equality to work across modules and not compare enum states/values, instead of just checking for the same object.

A possible simple fix for this problem would be to override the __eq__() function by default in the enum.Enum class with the following:

def __eq__(self, other):
    if isinstance(other, self.__class__):
        return self.value == other.value
    return False

I would be happy to create a GitHub pull request to fix this, however, I do not have the experience or knowledge to know if
- the current behavior is by design;
- whether this is worth fixing; and
- whether fixing this will break anything else.

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components: Library (Lib)
messages: 294983
nosy: Madhav Datt
priority: normal
severity: normal
status: open
title: Enum equality across modules: comparing objects instead of values
type: behavior
versions: Python 2.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30545>
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