How do I mix audio files using python?

Question

I would like to do basic audio mixing in python.

To give an example: I would like to take two mp3 files and add them together and return one mp3 file. Another example:

Answer 1

The way I've done this in the past is just use subprocess. and call sox.

E.g. subprocess.call(["sox", "in.1.mp3", "in.2.mp3", "out.mp3"])