EDIT: Update python code guide and include linting, formatting and type checking

[estebanx64]

Description

• I updated the code in the main Python guide. I noticed some deprecations in the libraries. I made a refactor and updated the whole code to be totally up to date with the recent library version
• I added a section about linting, formatting, and type checking to follow the best practices. I include them in the CI/CD too

@craig-osterhout
@usha-mandya

• Technical review
• Editorial review
• Product review

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[craig-osterhout]

Noting that we'll get #22676 merged first before reviewing as it will cause conflicts.

[craig-osterhout]

Hi @estebanx64, thank you for updating this. The PR mentioned above has been merged and is causing a conflict. Please help resolve the conflicts and let me know if you need any help.