popen bufsize not allowed on windows

[Jonathan Hudgins]

> When I try setting the bufsize on popen on windows I get the following error:
> 
>     output = os.popen( "ls", 'r', 1 )
> 
> ValueError: popen() arg 3 must be -1

setting the environment variable PYTHONUNBUFFERED *before* executing
the parent python script does the trick.  (Or supposedly using the -u
option on command line when starting the parent script).

Now I am trying to get this compiled into an exe using py2exe.
Any thoughts on how to make py2exe call python unbuffered?


Jonathan