Two warnings from pyflakes:diff -r72889bf8531dLib/multiprocessing/spawn.py--- a/Lib/multiprocessing/spawn.py      Tue Mar 18 13:21:29 2014 +0100+++ b/Lib/multiprocessing/spawn.py      Wed Mar 19 11:49:24 2014 +0100@@ -64,6 +64,7 @@ def freeze_support():     Run code for process object if this in not the main process     '''     if is_forking(sys.argv):+        # FIXME: main() is undefined         main()         sys.exit() diff -r72889bf8531dLib/multiprocessing/synchronize.py--- a/Lib/multiprocessing/synchronize.py        Tue Mar 18 13:21:29 2014 +0100+++ b/Lib/multiprocessing/synchronize.py        Wed Mar 19 11:50:50 2014 +0100@@ -51,7 +51,6 @@ class SemLock(object):     _rand = tempfile._RandomNameSequence()      def __init__(self, kind, value, maxvalue, *, ctx):-        ctx = ctx or get_context()         ctx = ctx.get_context()         unlink_now = sys.platform == 'win32' or ctx._name == 'fork'         for i in range(100):

Serhiy suggested (msg214136):"Lib/multiprocessing/synchronize.py:Add at the start of the file:from . import get_context"It looks like multiprocessing.get_context() exists, but I don't see how it is defined.For main(), it should maybe be replaced with _main()?

> It looks like multiprocessing.get_context() exists, but I don't see how it> is defined.It is defined by:globals().update((name, getattr(context._default_context, name))                 for name in context._default_context.__all__)> For main(), it should maybe be replaced with _main()?_main() has different signature.

New changeset619331c67638 by Richard Oudkerk in branch '3.4':Issue#20990: Fix issues found by pyflakes for multiprocessing.http://hg.python.org/cpython/rev/619331c67638

Would it be possible to write a test?Le dimanche 23 mars 2014, Roundup Robot <report@bugs.python.org> a écrit :>> Roundup Robot added the comment:>> New changeset619331c67638 by Richard Oudkerk in branch '3.4':> Issue#20990: Fix issues found by pyflakes for multiprocessing.>http://hg.python.org/cpython/rev/619331c67638>> ----------> nosy: +python-dev>> _______________________________________> Python tracker <report@bugs.python.org <#"http://bugs.python.org/issue20990">http://bugs.python.org/issue20990>> _______________________________________>

New changesetbb6377db0a9e by Richard Oudkerk in branch '3.4':Issue#20990: Correction for619331c67638.http://hg.python.org/cpython/rev/bb6377db0a9e

Can we close this issue? Or Richard wants to write a test?

Testing the is_forking() requires cx_freeze or something similar, so it really cannot go in the test suite.I have tested it manually (after spending too long trying to get cx_freeze to work with a source build).It should be noted that on Unix freezing is currently only compatible with the default 'fork' start method.