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bpo-33929: Fix regression in spawn_main() (#7962)

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OpenProcess() creates a new handle that must be closed later.
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Victor Stinner 2018-06-27 15:18:39 +02:00 • committed by GitHub
parent 2cc9d21fff
commit 0aab8660cd
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1 changed files with 6 additions and 2 deletions
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8
Lib/multiprocessing/spawn.py
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@ -103,8 +103,12 @@ def spawn_main(pipe_handle, parent_pid=None, tracker_fd=None):
_winapi.PROCESS_DUP_HANDLE, False, parent_pid)
else:
source_process = None
new_handle = reduction.duplicate(pipe_handle,
source_process=source_process)
try:
new_handle = reduction.duplicate(pipe_handle,
source_process=source_process)
finally:
if source_process is not None:
_winapi.CloseHandle(source_process)
fd = msvcrt.open_osfhandle(new_handle, os.O_RDONLY)
else:
from . import semaphore_tracker