[Python-ideas] BufferedIO and detach

Robert Collins robertc at robertcollins.net
Mon Mar 4 22:29:35 CET 2013

On 5 March 2013 10:15, Antoine Pitrou <solipsis at pitrou.net> wrote:
> On Tue, 5 Mar 2013 10:17:11 +1300
> Robert Collins
> <robertc at robertcollins.net> wrote:
>> sys.stdin - starts in blocking mode. How do you convert it to
>> non-blocking mode? Portably? Now, how do you convert it to
>> non-blocking mode when you don't know that it is fd 1, and instead you
>> just have a stream (TextIOWrapper or BufferedReader or even a RawIO
>> instance) ?
> How about the fileno() method?

What about it? Do you mean 'non-blocking mode is entirely defined by
the OS level read() behaviour and there is no tracking of that state
higher up' ? If so cool (and we should document that somewhere). I'll
need to go lookup the windows equivalent to FCNTL, and I still think
the current hidden buffer status is problematic.


Robert Collins <rbtcollins at hp.com>
Distinguished Technologist
HP Cloud Services

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