Python improvements

[Timmmm]

Since #196 this repo has some Python code, and to make Python development vaguely pleasant there are some things I always recommend:

• Use Ruff in CI to format & lint the code. This can be done via pre-commit.
• Use Pyright in CI to type check the code. This can be done via pre-commit but I wouldn't recommend it because it doesn't support setting up the venv first.
• Use Pydantic to load data.
• Use Typer for CLI parsing.
• Use pyproject.toml and uv for running the code.

[jordancarlin]

Use Pyright in CI to type check the code. This can be done via pre-commit but I wouldn't recommend it because it doesn't support setting up the venv first.

This works pretty well as a local pre-commit hook using uv. uv will set up the venv with all the necessary dependencies. We’re using the following hook for act4:

  # Pyright Python type checker
  - repo: local
    hooks:
      - id: pyright
        name: pyright
        entry: uv run pyright
        language: system
        types: [python]

[james-ball-qualcomm]

Tim Hutt (@Timmmm), as long as I can still run unit-level tests by typing "make" I'm happy with your improvements. In fact, having a pre-commit check that runs make and ensures it returns 0 exit status would be ideal. Note that the make is only used to run unit-level tests on the Python code and your tags backend.