This is a template for Python projects.
Simply add your Python script(s), modules, tests etc. and you're all good!
requirements.txt is a file to help other developers know what dependencies your application has.
Basically it is a list of Python modules, one per line. It is mostly for external modules (e.g. things you install with pip) so if you used pip install flask then you're requirements.txt should have flask on one line.
Collaborators can then run pip install -r requirements.txt and automatically have all the dependencies installed in their environment.