unbuffering std streams in code

[Fredrik Lundh]

John Reese wrote:

> You know how you can specify that stderr, stdin, stdout should be
> unbuffered by running python with the -u switch?  Is there any way I
> can have the same affect in code by doing something to the sys.std*
> variables?

try this:

>>> import os, sys
>>> sys.stdout = os.fdopen(sys.stdout.fileno(), sys.stdout.mode, 0)

(repeat for the other streams)

(-u does a bit more than this on some platforms, but the above
should be good enough for many purposes)

</F>