Fix concurrency consistency for `internals_pp_manager` under multiple-interpreters#5947

Merged

b-pass merged 22 commits intopybind:masterfrom

XuehaiPan:fix-multiple-interpreters-concurrency

Dec 26, 2025

Commits on Dec 25, 2025

Add per-interpreter storage for `gil_safe_call_once_and_store`
XuehaiPan
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Disable thread local cache for `internals_pp_manager`
XuehaiPan
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Disable thread local cache for `internals_pp_manager` for multi-interpreter only
XuehaiPan
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Merge remote-tracking branch 'upstream/master' into fix-multiple-interpreters-concurrency
XuehaiPan
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Use anonymous namespace to separate these type_ids from other tests with the same class names.
b-pass
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style: pre-commit fixes
pre-commit-ci[bot]
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Revert internals_pp_manager changes
b-pass
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This is the crux of fix for the subinterpreter_before_main failure.
b-pass
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Continue to do the ensure in both places, there might be a reason it was where it was...
b-pass
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Change get_num_interpreters_seen to a boolean flag instead.
b-pass
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Spelling typo
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Work around older python versions, only need this check for newish versions
b-pass
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Commits on Dec 26, 2025