At least one static code analysis tool (beyond compiler warnings and "safe" language modes) MUST be applied

[epuertat]

Let's statically analyze the Python code:

### Tasks
- [ ] Static Type checker (like [mypy](https://github.com/python/mypy)
- [ ] Pylint (or [Ruff](https://beta.ruff.rs/docs/), [pyre](https://github.com/facebook/pyre-check), [pytype](https://github.com/google/pytype), or [Pyright](https://github.com/microsoft/pyright) )
- [ ] Security