Fix some linting errors

[alexferrari88]

Description

Pylint (at least locally) keeps on complaining about several issues. In this PR I have addressed some of them. If you look at them, it makes sense that pylint complains :)

Checklist:

• Update our Hugo documentation following these guidelines.
• Update our tests following these guidelines.
• Make sure you are following our CONTRIBUTING guidelines.
• If a feature was added make sure to add it to the corresponding scripts file.

Others

• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• My code passes all the checks pylint, flake8, black, ... To speed up development you should run pre-commit install.
• New and existing unit tests pass locally with my changes. You can test this locally using pytest tests/....

[DidierRLopes]

Nice one!! Thank you Alex!