Use pip to install the libraries
pip install git+https://github.com/virtualpregnancy/repro-image.git
To use pip to install the libraries when you have cloned them onto your machine and are planning to develop them (note this is best to do within a virtual environment):
pip install -e /path/to/reproimage
If you are running a system with multiple python versions, it can be safest to run commands as:
python -m pip
To ensure that your pip command is explicitly tied to the correct python interpreter. This is implicitly true if you are already running python from a virtual environment that has been activated.