[issue26839] Python 3.5 running on Linux kernel 3.17+ can block at startup or on importing the random module on getrandom()
Larry Hastings
report at bugs.python.org
Wed Jun 8 05:01:24 EDT 2016
Larry Hastings added the comment:
I don't know if anyone literally still uses BSD. But on FreeBSD, /dev/urandom can block.
So let me revise my statement slightly. Developers on platform X know how *their* /dev/urandom behaves. They should rightly expect that os.urandom() is a thin wrapper around their local /dev/urandom. If their /dev/urandom doesn't block, then os.urandom() shouldn't block. If their /dev/urandom blocks, then it's acceptable that their os.urandom() would block.
What I'm trying to avoid here is the surprising situation where someone is using Python on a system where /dev/urandom will never block, and os.urandom() blocks.
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<http://bugs.python.org/issue26839>
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