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The stubs did not match what CPython returns: - With `lock=False`, `Value` and `Array` return the raw ctypes object. `BaseContext.Value` claimed `Synchronized[_CT]` instead of `_CT`, and both `Array` stubs returned something other than `ctypes.Array[_CT]`. - `sharedctypes.Value` returned `SynchronizedBase` for simple C types and typecode strings, hiding the `value` attribute that the runtime `Synchronized` wrapper provides. - `BaseContext.Value` returned `Synchronized[_CT]` for other ctypes such as structures. These are wrapped in a `SynchronizedBase` subclass that has no `value` attribute. Make both modules match the runtime and each other. Fixes python#10319
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Closes #10319.
Make
multiprocessing.Value/Arrayand theirmultiprocessing.sharedctypescounterparts match the runtime: they return the raw ctypes object (orctypes.Array) forlock=False,Synchronizedfor simple C types and typecode strings, andSynchronizedBasefor other ctypes such as structures. SeeValue/Arrayandsynchronized().Prepared with Claude Code.