be specific in pip install directory
be specific in pip install directory

benmurden/heroku-buildpack-python-ember,joshfriend/heroku-buildpack-python,cloudfoundry/python-buildpack,cloudfoundry/python-buildpack,heroku/heroku-buildpack-python,AltSchool/heroku-buildpack-python,Scalingo/python-buildpack,benjaminfox/heroku-buildpack-python-geoip,edmorley/heroku-buildpack-python,ad-m/heroku-buildpack-python,Scalingo/python-buildpack,smalleats/heroku-buildpack-python,AltSchool/heroku-buildpack-python,ad-m/heroku-buildpack-python,andela-brotich/wger-buildpack-python,benmurden/heroku-buildpack-python-ember,heroku/heroku-buildpack-python,skilljar/heroku-buildpack-python,cloudfoundry/python-buildpack,benjaminfox/heroku-buildpack-python-geoip