Injecting configuration and compiling...
[1G [1G-----> Python app detected
[1G ! The latest version of Python 2 is python-2.7.14 (you are using python-2.7.6, which is unsupported).
[1G ! We recommend upgrading by specifying the latest version (python-2.7.14).
[1G Learn More: https://devcenter.heroku.com/articles/python-runtimes
[1G-----> Installing python-2.7.6
[1G-----> Installing pip
[1G-----> Installing requirements with pip
[1G /tmp/buildpacks/04_buildpack-python/bin/steps/pip-install: line 10: /app/.heroku/python/bin/pip: No such file or directory