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-2.7.9, 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-2.7.9
[1G ! Requested runtime (python-2.7.9) is not available for this stack (cedar-14).
[1G ! Aborting. More info: https://devcenter.heroku.com/articles/python-support