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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"enum.Flag ignores bitwise operator methods from mixins","articleBody":"When I define methods `('__or__', '__and__', '__xor__', '__ror__', '__rand__', '__rxor__', '__invert__')`\r\ndirectly in the class inheriting from `enum.Flag`, these methods are \"added\" (mro) to the members, however, if the method is defined in the mixin, the methods defined in `enum.Flag` are added (e.g. `Flag.__or__`). I would expect methods to be called from mixin.\r\n\r\n```py\r\nfrom enum import Flag\r\n\r\n\r\nclass Mixin:\r\n    def __or__(self, value): ...\r\n\r\n\r\nclass MyFlag(Mixin, Flag):\r\n    pass\r\n\r\n\r\nclass MyFlag2(Flag):\r\n    def __or__(self, value): ...\r\n\r\n\r\nprint(MyFlag.__or__.__qualname__)  # Flag.__or__, I would expect Mixin.__or__\r\nprint(MyFlag2.__or__.__qualname__)  # MyFlag2.__or__ - GOOD\r\n```\r\n\r\nhttps://github.com/python/cpython/blob/089835469d5efbea4793cd611b43cb8387f2e7e5/Lib/enum.py#L610-L619\n\n\u003c!-- gh-linked-prs -->\n### Linked PRs\n* gh-155862\n\u003c!-- /gh-linked-prs -->\n","author":{"url":"https://github.com/gswifort","@type":"Person","name":"gswifort"},"datePublished":"2024-07-02T20:06:35Z","url":"https://github.com/python/cpython/issues/121291"}