py3 get rid of cmp() in btquotient.py

[fchapoton]

as another step to py3

CC: @tscrim @a-andre @jdemeyer

Component: python3

Author: Frédéric Chapoton

Branch/Commit: b6d14fe

Reviewer: Travis Scrimshaw

Issue created by migration from https://trac.sagemath.org/ticket/22267

[fchapoton]

Branch: u/chapoton/22267

[fchapoton]

New commits:

c156f33

py3 getting rid of cmp() in btquotient.py

[fchapoton]

Commit: c156f33

[fchapoton]

comment:2

Triggers one doctest failure. Damn.

Maybe one needs to implement __ne__ ?

[sagetrac-git]

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

b6d14fe

trac 22267 adding the missing __ne__

[sagetrac-git]

Changed commit from c156f33 to b6d14fe

[fchapoton]

comment:4

waiting for the bots

[fchapoton]

comment:5

green bot, please review (easy one)

[tscrim]

Reviewer: Travis Scrimshaw

[tscrim]

comment:6

Since there were no tests for checking the inequalities, I think we are okay in assuming that was never really used (i.e., the total ordering was more artificial because of the __cmp__ definition). While I am slightly worried someone is using it in an essential way, not enough to keep this from setting this to a positive review to continue the march to Python3.

[fchapoton]

comment:7

thanks ! what do you think of #22256 ?

[vbraun]

Changed branch from u/chapoton/22267 to b6d14fe