[issue12011] The signal module should raise OSError for OS-related exceptions, not RuntimeError

[STINNER Victor]

STINNER Victor <victor.stinner at haypocalc.com> added the comment:

I asked if I should use RuntimeError or OSError for the new signal functions (#8407) on python-dev. Georg Brandl answered:

"If it has an errno, it should be a subclass of EnvironmentError."

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12011>
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