<div id="comment:0"></div> CC: @JohnCremona @roed314 @edgarcosta Component: **refactoring** Author: **Frédéric Chapoton** Branch: **[`32c87b9`](https://github.com/sagemath/sagetrac-mirror/commit/32c87b932eef87707d1acf6c5965a2850df39f15)** Reviewer: **David Roe** _Issue created by migration from https://trac.sagemath.org/ticket/32647_