René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Run the CPython typing test suite against typing-extensions","articleBody":"I propose to add a workflow that:\n\n- Grabs `test_typing.py` from CPython\n- Replaces all `typing` imports with `typing_extensions` through some hackery (either sed or some cleverness with importlib)\n- Runs the test suite\n\nThis would help us catch issues where something got changed in CPython and we didn't reapply it to our variant. For example, this would allow us to catch issues in our TypedDict implementation, which is currently different from CPython's on all versions.\n\nWe'd have to run this only on matching versions (e.g., run the CPython tests from the 3.14 branch on Python 3.14) because the CPython tests may rely on new syntax or standard library features.\n\nFeel free to pick this up if you see this and are interested! I may do it eventually when I find time.","author":{"url":"https://github.com/JelleZijlstra","@type":"Person","name":"JelleZijlstra"},"datePublished":"2025-05-25T15:26:14.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":14},"url":"https://github.com/606/typing_extensions/issues/606"}