I downloaded a Python 3.5 application which needs to import requests, overpy, numpy and tk. So, when I try to import, say, requests, I get:
Traceback (most recent call last): File "", line 1, in ImportError: No module named 'requests'
I have searched the internet for answers and the best I could find is in this link getting error for importing numpy at Python 3.5.1 . I do have other versions installed, 2.7 is installed by default, however knowing where the problem is doesn't offer a solution.
If it is relevant to configuration issues, I have a Mac with El Capitan.