Python Run a daemon sub-process & read stdout

Question

I need to run a program and gather its output to stdout. This program (socat) needs to run in the background for the duration of the python script. Socat sits in dameon mode

Answer 1

If you supply it with a pipe for stdout and stderr, I think the subprocess will block waiting for the pipes to be read. .read() should read to EOF, I think. Between them, those two issues prolly makes a deadlock.

However, I think that since .read() will read till EOF, it will block even if there is no stderr pipe.

You want to stick the reading in a thread, I think.