[New-bugs-announce] [issue27020] os.writev() does not accept generators (as buffers argument)

[Марк Коренберг]

New submission from Марк Коренберг:

Unlike socket.sendmsg(), os.writev() does not support generators.

Proof:

In [4]: os.writev(1, [b'aa', b'bb', b'\n'])
aabb
Out[4]: 5

In [5]: os.writev(1, (i for i in [b'aa', b'bb', b'\n']))
...
TypeError: writev() arg 2 must be a sequence

----------
components: Library (Lib)
messages: 265536
nosy: mmarkk
priority: normal
severity: normal
status: open
title: os.writev() does not accept generators (as buffers argument)
type: behavior
versions: Python 3.3, Python 3.4, Python 3.5, Python 3.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27020>
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