[issue12098] Child process running as debug on Windows
Changes by Kristján Valur Jónsson krist...@ccpgames.com: -- status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Kristján Valur Jónsson added the comment: Reopening this since this it needs backporting to 2.7 -- nosy: +kristjan.jonsson status: closed - open versions: +Python 2.7 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Roundup Robot added the comment: New changeset 37f52e71f4cd by Kristján Valur Jónsson in branch '2.7': Issue #12098: multiprocessing on Windows now starts child processes http://hg.python.org/cpython/rev/37f52e71f4cd -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
R. David Murray added the comment: Early indications are that this backport broke test running on the buildbots: http://buildbot.python.org/all/builders/AMD64%20OpenIndiana%202.7/builds/1614 -- nosy: +r.david.murray ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Kristján Valur Jónsson added the comment: The buildbots page has been down for a while now, I can't see what's going on. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Roundup Robot added the comment: New changeset b0b507268d7c by Kristján Valur Jónsson in branch '2.7': Issue #12098 : Fix a missing import in the unittests. http://hg.python.org/cpython/rev/b0b507268d7c -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Changes by Richard Oudkerk shibt...@gmail.com: -- resolution: - fixed stage: - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Roundup Robot devn...@psf.upfronthosting.co.za added the comment: New changeset 347735ec92eb by Richard Oudkerk in branch 'default': #12098: Make multiprocessing's child processes inherit sys.flags on Windows http://hg.python.org/cpython/rev/347735ec92eb -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Richard Oudkerk shibt...@gmail.com added the comment: Failure to build _multiprocessing will mean that multiprocessing cannot be imported. So if the function goes somewhere in multiprocessing then it makes running the test suite with multiple processes dependent on the building of _multiprocessing. Not sure if that is much of a problem since one can just run the test suite normally. I don't think that's a problem indeed. Since multiprocessing also depends on threading, the change has broken the AMD64 Fedora without threads 3.x buildbot. I had not realized that the buildbots ran the test suite using multiple processes. I am not sure how best to refactor things -- I don't think multiprocessing should import test.support. Maybe we should just live with the duplication. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Antoine Pitrou pit...@free.fr added the comment: Since multiprocessing also depends on threading, the change has broken the AMD64 Fedora without threads 3.x buildbot. I had not realized that the buildbots ran the test suite using multiple processes. They don't. It's only the import failing, so you should just catch and ignore the ImportError. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Antoine Pitrou pit...@free.fr added the comment: Since multiprocessing also depends on threading, the change has broken the AMD64 Fedora without threads 3.x buildbot. I had not realized that the buildbots ran the test suite using multiple processes. They don't. It's only the import failing, so you should just catch and ignore the ImportError. Sorry, I have misread. It actually happens inconditionally in run_tests.py, and is used to spawn the Python interpreter which will run the test suite. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Roundup Robot devn...@psf.upfronthosting.co.za added the comment: New changeset 2034b3de1144 by Antoine Pitrou in branch 'default': Move private function _args_from_interpreter_flags() to subprocess.py, so http://hg.python.org/cpython/rev/2034b3de1144 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Richard Oudkerk shibt...@gmail.com added the comment: - the function generating the flags should be exported (with a private name), so that it can be reused by Lib/test/[test_]support.py. Duplicate code is error-prone, especially when enumerating command-line flags, attribute names... Failure to build _multiprocessing will mean that multiprocessing cannot be imported. So if the function goes somewhere in multiprocessing then it makes running the test suite with multiple processes dependent on the building of _multiprocessing. Not sure if that is much of a problem since one can just run the test suite normally. Also I don't think -i (inspect/interactive) should be passed on: a child process's stdin is os.devnull. BTW, why isn't the use of -u (unbuffered stdout, stderr) reflected in sys.flags? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Antoine Pitrou pit...@free.fr added the comment: Failure to build _multiprocessing will mean that multiprocessing cannot be imported. So if the function goes somewhere in multiprocessing then it makes running the test suite with multiple processes dependent on the building of _multiprocessing. Not sure if that is much of a problem since one can just run the test suite normally. I don't think that's a problem indeed. Also I don't think -i (inspect/interactive) should be passed on: a child process's stdin is os.devnull. Ah, you're right. BTW, why isn't the use of -u (unbuffered stdout, stderr) reflected in sys.flags? Don't know. sys.flags was introduced in issue1816, long after the -u flag itself. The code to reflect -u is commented out, perhaps Christian Heimes can shed some light on this. -- nosy: +christian.heimes ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Changes by Antoine Pitrou pit...@free.fr: -- nosy: +sbt ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Antoine Pitrou pit...@free.fr added the comment: Ok, thanks for the patches. Some further comments: - the function generating the flags should be exported (with a private name), so that it can be reused by Lib/test/[test_]support.py. Duplicate code is error-prone, especially when enumerating command-line flags, attribute names... - in the tests, proc_flags() could simply return tuple(sys.flags). This is simpler and easier to maintain. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Antoine Pitrou pit...@free.fr added the comment: Thanks for the patches. One comment: I'm not sure a frozen interpreter can take regular Python flags. As for the test, you could run a function returning sys.flags from the child to the parent, and check that the returned value is equal to the parent's sys.flags. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Changes by Sergey Mezentsev theb...@yandex.ru: Removed file: http://bugs.python.org/file22021/Issue12098.branch-2.6.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Changes by Sergey Mezentsev theb...@yandex.ru: Removed file: http://bugs.python.org/file22022/Issue12098.branch-default.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Changes by Sergey Mezentsev theb...@yandex.ru: Added file: http://bugs.python.org/file22041/Issue12098.branch-2.6.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Changes by Sergey Mezentsev theb...@yandex.ru: Added file: http://bugs.python.org/file22042/Issue12098.branch-default.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Sergey Mezentsev theb...@yandex.ru added the comment: I updated the patch. Added a test and remove arguments for frozen interpreter. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
STINNER Victor victor.stin...@haypocalc.com added the comment: I think that the problem is in Popen.get_command_line() of multiprocessing.forking. There are other options changing Python behaviour: -b, -B, -E, -u, etc. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Changes by Amaury Forgeot d'Arc amaur...@gmail.com: -- nosy: +jnoller ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Antoine Pitrou pit...@free.fr added the comment: We already have some logic for that: http://hg.python.org/cpython/file/default/Lib/test/support.py#l1398 -- nosy: +pitrou ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Sergey Mezentsev theb...@yandex.ru added the comment:
I create patch for Popen.get_command_line() ('2.6' and 'default' branches).
I don't know how to write the test. The sys.flags structure are read only.
--
keywords: +patch
Added file: http://bugs.python.org/file22021/Issue12098.branch-2.6.patch
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[issue12098] Child process running as debug on Windows
Changes by Sergey Mezentsev theb...@yandex.ru: Added file: http://bugs.python.org/file22022/Issue12098.branch-default.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Changes by STINNER Victor victor.stin...@haypocalc.com: -- title: Child process running as debug - Child process running as debug on Windows ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Changes by Antoine Pitrou pit...@free.fr: -- type: behavior - feature request versions: +Python 3.3 -Python 2.6 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12098] Child process running as debug on Windows
Amaury Forgeot d'Arc amaur...@gmail.com added the comment: This happens only on Windows, where multiprocessing has to spawn a new intepreter; the -O parameter is certainly omitted. Unix platforms fork() the current interpreter with all its state and don't have this issue. -- nosy: +amaury.forgeotdarc ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12098 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
