Including pip-installed libraries on emacs python shell

Question

I recently found out you can run python from emacs (Python Mode -> py-shell) and I've been running my scripts through the py-shell due to only needing to C-c C-c, but I've been running into a problem:

I import requests among other external libraries I have installed (through pip), but the python shell in Emacs can't find the modules. Is there a way I can change PATH variables in such a way that Emacs finds these modules?

Here's the error the python shell gives (not sure if it helps, but this runs on the "Py:run Shell-Compile" buffer):

exec(compile(open(r'/Users/r/Desktop/name.py').read(), r'/Users/r/Desktop/name.py', 'exec')) # PYTHON-MODE
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/r/Desktop/name.py", line 1, in <module>
    import requests
ImportError: No module named requests

(As proof that I do have requests installed, I ran this on the terminal with python name.py and it worked as expected)