How to use external python modules with microsoft azure

I am trying to use Sympy module in python implemented on Microsoft Azure platform to no avail. This is the first of several modules I want to use, but I find it very difficult to find a step-by-step guide on how to implement any external python modules in Microsoft Azure. Anyone have any experience with this that could provide advice? I tried to download the source from github and put it in the same folder that contains my application folder. BTW, I installed the Flask app in azure and cloned the app to a local folder where I saw the flask folder, so I thought I could put the Sympy folder there and name it, but that didn't work. Help!!