[issue26434] multiprocessing cannot spawn grandchild from a Windows service

Davin Potts added the comment: Patch committed in 2.7 branch. Thanks for your help, Marc. -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker

[issue26434] multiprocessing cannot spawn grandchild from a Windows service

Davin Potts added the comment: New changeset c47c315812b1fa9acb16510a7aa3b37d113def48 by Davin Potts (Marc Schlaich) in branch '2.7': bpo-26434: Fix multiprocessing grandchilds in a Windows service (GH-1167) https://github.com/python/cpython/commit/c47c315812b1fa9acb16510a7aa3b37d113def48 ---

[issue26434] multiprocessing cannot spawn grandchild from a Windows service

Marc Schlaich added the comment: I opened a PR on GitHub, please review. -- ___ Python tracker ___ ___ Python-bugs-list mailing list U

[issue26434] multiprocessing cannot spawn grandchild from a Windows service

Changes by Roundup Robot : -- pull_requests: +1297 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail

[issue26434] multiprocessing cannot spawn grandchild from a Windows service

Marc Schlaich added the comment: Wrong bug... -- status: closed -> open ___ Python tracker ___ ___ Python-bugs-list mailing list Unsub

[issue26434] multiprocessing cannot spawn grandchild from a Windows service

Marc Schlaich added the comment: We have some business privilege management solution running which might have corrupted the installation. As no one else is reporting this issue, this is my best guest for this phenomena and I'm going to close this issue. -- status: open -> closed _

[issue26434] multiprocessing cannot spawn grandchild from a Windows service

Marc Schlaich added the comment: I can confirm that this patch is working. Maybe the test case can be modified to simulate a "pythonservice.exe" run (by patching sys.executable or something like that) so it can be run without admin privileges. -- _

[issue26434] multiprocessing cannot spawn grandchild from a Windows service

Davin Potts added the comment: Attached is a patch for the 2.7 branch which adds the check described in the previous message. I don't see a reasonable way to provide an accompanying test because it requires registering a win32 service (requiring administrative privileges) temporarily to attem

[issue26434] multiprocessing cannot spawn grandchild from a Windows service

Davin Potts added the comment: I can reproduce the problem under Windows 7. Thank you for your example and description -- they were very helpful. Detection that the original parent was PythonService.exe is necessary to avoid undoing the paths set appropriately for running under a service. Th

[issue26434] multiprocessing cannot spawn grandchild from a Windows service

New submission from Marc Schlaich: This is a follow up of #5162. There are some occasions where you can still run into this issue. One example is if you want to spawn a new multiprocessing.Process as a child of a multiprocessing.Process: pythonservice.exe - multiprocessing.Process