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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Add `__orig_bases__` to non-generic TypedDict","articleBody":"# Feature or enhancement\r\n\r\nAs discussed at the typing summit, non generic TypedDict's completely loose all inheritance information. Funny enough, _generic_ TypedDict's actually preserve it via `__orig_bases__` because Generic does that. So this just brings non-generic TypedDicts to be the same.\r\n\r\n# Pitch\r\n\r\nThis is very useful for runtime type checkers, and as per above the attribute already exists for generic TypedDicts\r\n\r\n# Previous discussion\r\n\r\nDiscussed at PyCon 2023 typing summit, this was an uncontroversial yes at the time.\r\n\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-103698\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/adriangb","@type":"Person","name":"adriangb"},"datePublished":"2023-04-22T22:35:00.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/103699/cpython/issues/103699"}