In message <[EMAIL PROTECTED]>, [EMAIL PROTECTED] wrote: > Well, using this subclass of subprocess.Popen fixes the problem > (http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/440554) > > I don't understand how it works though. Would anyone mind > explaining? I'm thinking there's something fundamental about Unix > processes I'm not understanding.
The "select" calls are checking that the subprocess is ready to read before writing to its stdin, or that it has something to write before reading from its stdout. The O_NONBLOCK fcntl simply says not to wait if there is nothing more to be read, just return what was already read. -- http://mail.python.org/mailman/listinfo/python-list
