[issue10128] multiprocessing.Pool throws exception with __main__.py

[Nick Coghlan]

Nick Coghlan added the comment:

Marc's reference to pip meant I noticed something that I had missed previously - that this issue is referring specifically to the use of setuptools/pip entry points, not to the -m switch.

Entry points shouldn't be hitting this if they're importing the module containing the entry point normally - #10845 specifically related to invoking multiprocessing from a module run directly with the -m switch, which was worked around in 3.2 and 3.3, and then finally fixed properly in 3.4 by the implementation of #19946

So if there's an incompatibility between multiprocessing and entry points, it would be preferable to fix it in pip/setuptools, as that will reach many more installations than just fixing multiprocessing to better tolerate that situation.

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nosy: +bkabrda

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue10128>
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