A dependency manager is needed to manage application dependencies. Since this repository is basically a Python project I would suggest using pipenv. This would also help manage the virtual environment alongside. So here is an abstract of what needs to be done.

• Learn how pipenv manages production and development dependencies
• Add stable release of Django as normal (for production) dependency
• Add stable release of pytest and pylint as dev (for development) dependencies
• Lock dependencies
• Commit both the Pipfile and Pipfile.lock
• Raise a Pull Request
• Document everything in README.md