sage

c02dfc43 -

gh-37273: large pep8 cleanup in interfaces just fixing many small code details in `interfaces` folder ### :memo: Checklist - [x] The title is concise, informative, and self-explanatory. - [x] The description explains in detail what this PR is about. URL: https://github.com/sagemath/sage/pull/37273 Reported by: Frédéric Chapoton Reviewer(s): Frédéric Chapoton, Kwankyu Lee