changing things like

for i from 0 <= i < n

to

for i in range(n)

There remains many, as can be seen using

git grep " from .*<=" src/sage/

Component: refactoring

Author: Frédéric Chapoton

Branch/Commit: 16ef533

Reviewer: David Coudert

Issue created by migration from https://trac.sagemath.org/ticket/34847