Wrapping A Shell

[tleeuwenburg at gmail.com]

Jeremy Moles wrote:
> I'm not sure if this is really the right place to ask this question, but
> since the implementation is in Python, I figured I'd give it a shot.
>
> I want to "wrap" a shell process using popen inside of python program
> rather than creating a new shell process for each line I process in the
> app. For example, the code might look like:
>
>
> 	std = stdin, stdout, stderr = os.popen3("bash")
>
> 	print >> stdin, "ls"
>
> 	print stdout.readline()
>
> However, it appears my understanding of popen (or perhaps buffered IO)
> is off somewhere, because this certainly doesn't work anything like I
> expect it to (it hangs on stdout.readline).
>
> Obviously the example above is very contrived, but eventually I'll be
> using this in an OpenGL "terminal" widget. Am I approaching this the
> wrong way?

Try flushing the bufffer for stdin.


Cheers,
-T