[issue25654] test_multiprocessing_spawn ResourceWarning with -Werror

[STINNER Victor]

STINNER Victor added the comment:

Oh, with fixes for issues #21925 and #26637, test_multiprocessing_spawn started to fail:

http://buildbot.python.org/all/builders/AMD64%20Debian%20root%203.5/builds/727/steps/test/logs/stdio

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FAIL: test_sys_exit (test.test_multiprocessing_spawn.WithProcessesTestSubclassingProcess)
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Traceback (most recent call last):
  File "/root/buildarea/3.5.angelico-debian-amd64/build/Lib/test/_test_multiprocessing.py", line 483, in test_sys_exit
    self.assertEqual(f.read().rstrip(), str(reason))
AssertionError: "[1, 2, 3]\nsys:1: ResourceWarning: unclo[67 chars]-8'>" != '[1, 2, 3]'
- [1, 2, 3]
?          -
+ [1, 2, 3]- sys:1: ResourceWarning: unclosed file <_io.TextIOWrapper name='/dev/null' mode='r' encoding='UTF-8'>

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<http://bugs.python.org/issue25654>
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