I have no clue what you are on about.
You want to install a python module, but you have no reason to do so? Why ask the question then?
Phyton2 has nothing to do with it
Python2 has everything to do wiith it. You want to install python-requests, which is a python2 module, which will not work on a python 3 image, which is why it is not in the feed and you can not install it.
I thought I was clear about this before?