run-time pipeing

[Sven Herzberg]

I want to control a linux console client for filesharing via python and
GTK+ via pipes (popen4). I had no problems with pipeing from an program
wich finishes and quits like 'ls', but I can't read anything from a
program that needs additional input (like ftp). It seems that my program
waits for the console program to finish.

Is it possible to create a 'pipeing' frontend to a program like ftp?

Thanks
--
sven