[Answer]-Django – failed to push some refs to git@heroku.com

It looks like heroku cannot find a download for pypm version 1.3.4.
It could be that that version of the package is no longer available.

Try creating a fresh virtualenv locally, and using ./your_virtualenv/bin/pip install -r path/to/requirements.txt to install these packages.

The solution might be as simple as updating the version number.