[multiprocessing] Clarify incomplete popen types #14896
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According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉 |
donBarbos
commented
Oct 19, 2025
| def set_spawning_popen(popen: Any) -> None: ... | ||
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| if sys.platform != "win32": | ||
| def get_spawning_popen() -> popen_forkserver.Popen | popen_spawn_posix.Popen | None: ... |
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Should I use here popen_fork.Popen | None? (popen_fork.Popen is parent for popen_forkserver.Popen and popen_spawn_posix.Popen)
and Protocol for returns types "_DupFd" below? (instead of popen_forkserver._DupFd | popen_spawn_posix._DupFd | resource_sharer.DupFd)
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Source: https://github.com/python/cpython/tree/main/Lib/multiprocessing