If python doesn't exist in PATH, or python --version isn't 2.7.x, check ...

from the commit: If python doesn't exist in PATH, or python --version isn't 2.7.x, check to see if python2 or python2.7 exist, and if they have a python version of 2.7.x, add a symlink to it named python in a local directory and override PATH with that directory.

I tested it on Arch after a fresh clone and again with the symlink already made.