a few minor code changes

[fchapoton]

🇫🇷

juste quelques petits details

plus suppression des lignes de declaration d'encodage utf8, inutiles

🇬🇧

The utf-8 encoding is now the default in python since python3, so there is no need to declare that in every file.

Using yield from is recommended as much better by pep 0380 (https://peps.python.org/pep-0380/).

IOError is now an alias for OSError.

Some of the changes were scripted using the very fast linter ruff, see the section UP in its documentation : https://docs.astral.sh/ruff/rules/#pyupgrade-up and in particular UP009 and UP024.

[jpjarnoux]

Hi!

Thanks for your contribution.

Could you please update your description with more details and translate it into English?
What I meant by more details is:

• Why suppress utf-8 encoding
• You changed IOError into OSError; could you say why?
• Any other information or references that seem important to understand what you did

We found some information that justifies your change, but it would be better if it came from you.

Thanks again, and regards

[JeanMainguy]

Thank you for the update of the description 👌