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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Incorrect format passed to `__annotate__` function","articleBody":"# Bug report\n\nConsider this example:\n\n```python\nclass My:\n    def __annotate__(format):\n        assert format == 2, format\n        return {}\n\nimport annotationlib\nannotationlib.get_annotations(My, format=2)\n```\n\nThis will fail with:\n\n```\nTraceback (most recent call last):\n  File \"/Users/sobolev/Desktop/cpython2/ex.py\", line 7, in \u003cmodule\u003e\n    annotationlib.get_annotations(My, format=2)\n    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^\n  File \"/Users/sobolev/Desktop/cpython2/Lib/annotationlib.py\", line 688, in get_annotations\n    return dict(_get_dunder_annotations(obj))\n                ~~~~~~~~~~~~~~~~~~~~~~~^^^^^\n  File \"/Users/sobolev/Desktop/cpython2/Lib/annotationlib.py\", line 817, in _get_dunder_annotations\n    ann = _BASE_GET_ANNOTATIONS(obj)\n  File \"/Users/sobolev/Desktop/cpython2/ex.py\", line 3, in __annotate__\n    assert format == 2, format\n           ^^^^^^^^^^^\nAssertionError: 1\n```\n\nI think that we should still pass the format in `_BASE_GET_ANNOTATIONS`.\n\nI will try to fix this, since this affects my other PR: https://github.com/python/cpython/pull/122262\n\nCC @JelleZijlstra \n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-125534\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/sobolevn","@type":"Person","name":"sobolevn"},"datePublished":"2024-10-15T09:44:02.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":9},"url":"https://github.com/125507/cpython/issues/125507"}