python - Command line execution in different folder

Question

I'm calling a command line program in python using the os.system(command) call.

How can I call this command passing a different folder for execution? There is a system call for this? Or I should save the current folder, and, after execution, change restore it.

Answer 1

The subprocess module is a very good solution.

import subprocess
p = subprocess.Popen([command, argument1,...], cwd=working_directory)
p.wait()

It has also arguments for modifying environment variables, redirecting input/output to the calling program, etc.