[issue27266] Always use getrandom() in os.random() on Linux and add block=False parameter to os.urandom()

[STINNER Victor]

STINNER Victor added the comment:

Christian Heimes:
> For os.urandom() let's define it as non-blocking and raise an exception
> when it would blocks.

There is a lot of discussion around random in the bug tracker, it's
really hard to follow :-( Please use specific issues for each idea.
Making os.urandom() non-blocking and always raise an exception is not
the goal of this issue. This idea explicitly makes os.urandom()
blocking on Linux. I suggest you to open a new issue.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27266>
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