On Wed, Apr 6, 2011 at 12:47 AM, Adriaan Renting <rent...@astron.nl> wrote: > > > This solves the problem using stdin=open(os.devnull, 'rb') instead of > stdin=None makes it run even if there is input from stdin in the > foreground process. > > The operating system is Ubuntu 8.04 > I understood what Suspended (tty input) means. I don't understand why > it waits for input if stdin=None. > > Thank you for your help. > > Adriaan Renting. > -- > http://mail.python.org/mailman/listinfo/python-list
http://docs.python.org/library/subprocess.html "With None, no redirection will occur; the child’s file handles will be inherited from the parent." When a background process reads from a tty (which is most likely what its inherited stdin is connected to), it gets a SIGTTIN, suspending your background process. See also "ssh -n". -- http://mail.python.org/mailman/listinfo/python-list
