Untrue. Objects and attributes may be shared by threads so attribute accesses ca... | Hacker News

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		bjourne 33 days ago \| parent \| context \| favorite \| on: Python 3.15's JIT is now back on track Untrue. Objects and attributes may be shared by threads so attribute accesses can't in general be localized.

anematode 32 days ago [–]

It is true! If you explicitly synchronize between threads, sure, you can't optimize it in general, but if not, the compiler is well within its rights to cache the access.

bjourne 30 days ago | [–]

Sure, if the compiler can prove that the objects are thread-local. But that's not the general case.

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