[Twisted-Python] Win32 fix for twisted/internet/tcp.py

Joe Cotroneo joe at neosource.com.au
Sat Jun 24 00:42:43 EDT 2006

Hi Eric,

Sorry I didn't mean to downplay your level of Windows support. My comment was in jest. The guys on the #twisted channel were helpful, though as you said they had more of a linux background.


Date: Sat, 24 Jun 2006 13:45:35 +1000
From: "Eric Mangold" <teratorn at twistedmatrix.com>
Subject: Re: [Twisted-Python] Win32 fix for twisted/internet/tcp.py

Hi Joe,

On Sat, 24 Jun 2006 01:12:57 +1000, Joe Cotroneo <joe at neosource.com.au>  

> Hi there,
> I just downloaded the twisted words package, and tried the ircLogBot.py  
> sample.
> It came up with an error on my Win32 box, but worked fine on my linux  
> box.
> The error on win32 was due to the following line 512 in  
> twisted/internet/tcp.py:
> r, w, e = select.select([], [], [self.fileno()], 0.0)
> The select module on Win32 doesn't accept empty read/write handles, so  
> it generated an 'invalid argument' exception.
> I changed line 512 to the following, and the sample now works on win32.
> r, w, e = select.select([self.fileno()], [self.fileno()],  
> [self.fileno()], 0.0)
> P.S: I used Twisted 2.4.0 and twisted words 0.3.0
> Hope you find my report useful, even if win32 bugs aren't a priority ;)

I don't want people to get the wrong impression: Win32 *IS* a fully  
supported platform. Our support could be better than it is, but fixing  
win32 bugs in the existing code is just as much of a priority as any other  
platform. Commits that breaks tests on win32 are reverted almost  
immediately. The only issue is that there are simply fewer developers who  
have the desire, expertise, or dev evironments to work on Windows.

> Cheers,
> Joe

Eric Mangold - Twisted/Win32 Maintainer

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