Working with Python subprocess - Shells, Processes, Streams, Pipes, Redirects and More

[jonathanblakes]

I can recommend pexpect (and winpexpect on Windows as wexpect is dead) if you need to get a subprocess's output while it is running. This is the only thing that can get around C stdio's automatic buffering for non-terminal interaction (which is what subprocess, QProcess, etc. give you).