[issue12132] test_packaging failures when run with -j

[Tarek Ziadé]

Changes by Tarek Ziadé <ziade.tarek at gmail.com>:


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superseder: test_packaging failures when run with -j -> --multiprocessing fails with packaging.tests.test_command_build_ext

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12132>
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