You can use tools like black to automatically style your Python code in a consistent way. However, if you're just running it manually, you have to remember to run it regularly, and you'll probably end up with lots of git commits that are just "Style fixes".

pre-commit uses git hooks to run different tools before each git commit. A hook that runs black allows you to automatically style any new code before it gets committed.

To set up pre-commit, install the pre-commit package into your Python environment, and create a .pre-commit-config.yaml file. The config file for running black looks like:

repos:
-   repo: https://github.com/psf/black
    rev: 21.6b0
    hooks:
    -   id: black

Once you've created the config file you can run pre-commit install and the hooks will be set up. If you have existing code you can run pre-commit run --all-files to style it all.

You can also use commit hooks for automated testing with pytest (you can run commits at each push rather than each commit if this would be too slow), fixing minor whitespace errors, or custom tests you've created. There's a big list of available hooks here to get you started.