removed deprecated N method in element.pyx

[fchapoton]

from #13055

• plus remove __div__ automethod, problematic in python3

• plus a few other details

Component: refactoring

Author: Frédéric Chapoton

Branch/Commit: 65b3f3e

Reviewer: Travis Scrimshaw, Jeroen Demeyer

Issue created by migration from https://trac.sagemath.org/ticket/26296

[fchapoton]

Branch: u/chapoton/26296

[fchapoton]

Commit: 570c963

[fchapoton]

New commits:

ba118b7	remove deprecated N method in element.pyx
570c963	remove one import

[tscrim]

Reviewer: Travis Scrimshaw

[tscrim]

comment:2

So I am fine with everything except the __div__. I feel like for completeness it should be there. Would you be okay with kicking that down the road?

[jdemeyer]

Changed reviewer from Travis Scrimshaw to Travis Scrimshaw, Jeroen Demeyer

[jdemeyer]

comment:3

__div__ is Python 2 only, so I don't mind removing it.

[tscrim]

comment:4

Okay.

[vbraun]

comment:5

sage -t --long src/sage/structure/element.pyx  # 2 doctests failed

[sagetrac-git]

Branch pushed to git repo; I updated commit sha1. New commits:

65b3f3e

trac 26296 fixing doctests

[sagetrac-git]

Changed commit from 570c963 to 65b3f3e

[fchapoton]

comment:8

fixed

[tscrim]

comment:9

Verified.

[vbraun]

Changed branch from u/chapoton/26296 to 65b3f3e