[Python-Dev] Draft PEP to make file objects support non-blocking mode.

James Y Knight foom at fuhm.net
Sat Mar 19 02:41:25 CET 2005

On Mar 18, 2005, at 8:19 PM, Greg Ward wrote:
> Is having to use fcntl and os really so awful?  At least it requires
> the programmer to prove he knows what he's doing putting this file
> into non-blocking mode, and that he really wants to do it.  ;-)

I'd tend to agree. :) Moreover, I don't think fread/fwrite are 
guaranteed to work as you would expect with non-blocking file 
descriptors. So, providing a setblocking() call to files would require 
calling read/write instead of fread/fwrite in all the file methods, at 
least when in non-blocking mode. I don't think that's a good idea.


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