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## Summary In https://github.com/python/typeshed/pull/13520 the typeshed definition of `typing.Any` was changed from `Any = object()` to `class Any: ...`. Our automated typeshed updater pulled down this change in https://github.com/astral-sh/ruff/pull/17106, with the consequence that we no longer understand `Any`, which is... not good. This PR gives us the ability to understand `Any` defined as a class instead of `object()`. It doesn't remove our ability to understand the old form. Perhaps at some point we'll want to remove it, but for now we may as well support both old and new typeshed? This also directly patches typeshed to use the new form of `Any`; this is purely to work around our tests that no known class is inferred as `Unknown`, which otherwise fail with the old typeshed and the changes in this PR. (All other tests pass.) This patch to typeshed will shortly be subsumed by https://github.com/astral-sh/ruff/pull/17106 anyway. ## Test Plan Without the typeshed change in this PR, all tests pass except for the two `known_class_doesnt_fallback_to_unknown_unexpectedly_*` tests (so we still support the old form of defining `Any`). With the typeshed change in this PR, all tests pass, so we now support the new form in a way that is indistinguishable to our test suite from the old form. And indistinguishable to the ecosystem check: after rebasing https://github.com/astral-sh/ruff/pull/17106 on this PR, there's zero ecosystem impact. |
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