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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"enum.global_enum: `cls_name` undefined in `global_str`","articleBody":"**Bug report**\r\n\r\nIn acf7403f9baea3ae1119fc6b4a3298522188bf96 (#30582), @ethanfurman implemented a `global_enum` decorator, replacing the `__str__` of an enum with `enum.global_str`:\r\n\r\nhttps://github.com/python/cpython/blob/760ec8940aabd6a7fc471bd913ea1ac501cc604b/Lib/enum.py#L1638-L1645\r\n\r\n(This was later reverted in 42a64c03ec5c443f2a5c2ee4284622f5d1f5326c and reintroduced in 83d544b9292870eb44f6fca37df0aa351c4ef83a, but I believe the code to be the same).\r\n\r\nIf the `._name_` attribute is `None`, this uses `cls_name`, but that's not defined anywhere in that function!\r\n\r\nHere is a (somewhat contrived) example:\r\n\r\n```python\r\nimport enum\r\n\r\n@enum.global_enum\r\nclass EnumTest(enum.Enum):\r\n    VAL = 1\r\n\r\nEnumTest.VAL._name_ = None\r\n\r\nprint(str(VAL))\r\n```\r\n\r\nthis fails with:\r\n\r\n```pytb\r\nTraceback (most recent call last):\r\n  File \"/home/florian/tmp/x.py\", line 9, in \u003cmodule\u003e\r\n    print(str(VAL))\r\n          ^^^^^^^^\r\n  File \"/usr/lib/python3.11/enum.py\", line 1646, in global_str\r\n    return \"%s(%r)\" % (cls_name, self._value_)\r\n                       ^^^^^^^^\r\nNameError: name 'cls_name' is not defined\r\n```\r\n\r\n(Found by running `flake8` over `Lib/` out of curiosity, see https://github.com/python/cpython/issues/93010#issuecomment-1133402591)\r\n\r\n**Your environment**\r\n\r\n- CPython versions tested on: Python 3.11.0b1\r\n- Operating system and architecture: Archlinux x86_64","author":{"url":"https://github.com/The-Compiler","@type":"Person","name":"The-Compiler"},"datePublished":"2022-05-23T10:18:45.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/93100/cpython/issues/93100"}