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gh-155358: Convert sys structseq types to heap types - #155368
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Convert the following structseq types from static (built-in) types to heap types: * AsyncGenHooksType * Hash_InfoType * WindowsVersionType * FlagsType * VersionInfoType So these types are no longer shared between sub-interpreters. Cleanup also the EmscriptenInfoType type. Changes: * Replace _PyStructSequence_InitBuiltin() with PyStructSequence_NewType() or _PyStructSequence_NewType(). * Add PyInterpreterState.sys_state structure. * Rename sys.get_asyncgen_hooks() type from "asyncgen_hooks" to "sys.asyncgen_hooks". * Add test.support.check_immutable_type().
vstinner
requested review from
FFY00, ZeroIntensity, ericsnowcurrently and rhettinger
as code ownersAugust 7, 2026 22:34
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If this change is merged, it would be interesting to convert the following 4 static types to heap types as well: Objects/floatobject.c: if (_PyStructSequence_InitBuiltin(interp, &FloatInfoType,
Objects/longobject.c: if (_PyStructSequence_InitBuiltin(interp, &Int_InfoType,
Python/errors.c: if (_PyStructSequence_InitBuiltin(interp, &UnraisableHookArgsType,
Python/thread.c: if (_PyStructSequence_InitBuiltin(interp, &ThreadInfoType, &threadinfo_desc) <0) { |
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Convert the following structseq types from static (built-in) types to heap types:
So these types are no longer shared between sub-interpreters.
Cleanup also the EmscriptenInfoType type.
Changes:
object[index]) of structseq types (ex: os.stat_result) #155358