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From: Ben Finney <ben+python@benfinney.id.au>
Subject: Re: io.UnsupportedOperation: fileno
Date: Fri, 14 Nov 2014 10:52:11 +1100
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Xref: csiph.com comp.lang.python:80729

satishmlmlml@gmail.com writes:

> fileno() in not supported.

It is supported, but it is behaving as the documentation describes
<URL:https://docs.python.org/3/library/io.html#io.IOBase.fileno>.

> Is it only in 3.1? What is the workaround?

Expect an exception when you ask for the file descriptor on a stream
that does not use a file descriptor.

-- 
 \       “Pinky, are you pondering what I'm pondering?” “Well, I think |
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Ben Finney