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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"ForwardRef.evaluate() mishandles type_params","articleBody":"# Bug report\n\n### Bug description:\n\nThe implementation of `annotationlib.ForwardRef.evaluate` handles its `type_params` argument in a complex yet incorrect way. Fixing this unfortunately leads to some test failures in `typing.get_type_hints()` because it does additional confusing things to the globals and locals. Still, I think we should fix the behavior of the new public `.evaluate()` method.\n\n### CPython versions tested on:\n\nCPython main branch\n\n### Operating systems tested on:\n\n_No response_\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-137227\n* gh-137709\n* gh-138953\n* gh-138989\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/JelleZijlstra","@type":"Person","name":"JelleZijlstra"},"datePublished":"2025-07-30T04:17:37.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":13},"url":"https://github.com/137226/cpython/issues/137226"}