On Mon, 29 Jun 2009 21:15:52 +0200, Pascal Chambon wrote: > I've had real issues with subprocesses recently : from a python script, > on windows, I wanted to "give control" to a command line utility, i.e > forward user in put to it and display its output on console.
Are you talking about a popen(..., 'w') situation? I.e. where Python feeds data to the child's stdin but the child's stdout doesn't go through Python? Or a slave process, where both stdin and stdout/stderr are piped to/from Python? The latter is inherently tricky (which is why C's popen() lets you connect to stdin or stdout but not both). You have to use either multiple threads, select/poll, or non-blocking I/O. If the child's output is to the console, it should presumably be the former, i.e. piping stdin but allowing the child to inherit stdout, in which case, where's the problem? Or are you piping its stdout via Python for the hell of it? -- http://mail.python.org/mailman/listinfo/python-list