Hi MRAB, thanks for the reply! > > Opening the pipe for reading will block until it's also opened for > > writing, and vice versa. >
OK. > > > In your bash code, 'ls' blocked until you ran 'cat', but because you > > ran 'ls' in the background you didn't notice it! > > Right. > > In your Python code, the Python thread blocked on opening the pipe for > > writing. It was waiting for another thread or process to open the pipe > > for reading. OK. What you have written makes sense to me. So how do I overcome the block? As you said in bash I run the ls process in background. How do I do that in Python? Thanks again for the help, Luca -- http://mail.python.org/mailman/listinfo/python-list
