title: How to optimize python import requests statement
body: <p>I have a python application that is fairly large when I use <code>pyinstaller</code> to bundle it, so I'm looking for ways to reduce its size. It uses <code>requests</code>, but only to make one post request. Is there a way to use a statement like <code>from requests import ___</code> and still be able to make this post request? And in general, what's the best way to find documentation on the subsets of functionality that are available for import for a given python library?</p>