Can't install python module?

Hi, i'm trying to use a Kodi addon, but this addon needs netifaces(python module), i tried to install by using pip, but i can't install pip, i can't have the write permission of my python folders, i think i can't write anything in /usr folder i'm trying to use SSH to change this with Putty, but i have tried and searched and still can't even install pip help pls, and sorry for my bad english.