Question regarding 2 modules installed via 'pip'

[Roy Smith]

In article <cfd71610-1e34-4fec-82b0-fac2d4e91f7b at googlegroups.com>,
 Ned Batchelder <ned at nedbatchelder.com> wrote:

> Just as you use "which python" to figure out what "python" was executing, 
> "which pip" will help you figure out what "pip" is running.

And along those lines, if you're unsure where you're importing a module 
from, you can examine the __file__ attribute to find out:

>>> import requests
>>> requests.__file__
'/home/songza/deploy/rel-2013-11-14d/python/local/lib/python2.7/site-pack
ages/requests/__init__.pyc'