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-2.7.12, 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-2.7.12
[1G-----> Installing pip
[1G-----> Installing requirements with pip
[1G DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
[1G Collecting git+https://github.com/opensanctions/libsanctions (from -r /tmp/build/requirements.txt (line 1))
[1G Cloning https://github.com/opensanctions/libsanctions to /tmp/pip-req-build-InA8dX
[1G fatal: could not read Username for 'https://github.com': No such device or address
[1G Command "git clone -q https://github.com/opensanctions/libsanctions /tmp/pip-req-build-InA8dX" failed with error code 128 in None