I am totally new to Python and programming and to use a software I got to have all the following python modules: yaml, os, re, datetime, sys, getopt, shutil, itertools. but I do not have any clue that how can I download and install them for a Python 2.7.13 on OS X Sierra.
Thanks,
p.s: I know it's pretty a basic question, but please help me with a detailed answer, this is my first experience and got to learn how it works.