[sage-devel] Critical tickets waiting for review

2020-12-27 Thread Matthias Koeppe
https://trac.sagemath.org/query?priority=blocker&priority=critical&status=needs_info&status=needs_review&status=needs_work&status=new&milestone=sage-9.3&groupdesc=1&group=status&max=1500&col=id&col=summary&col=component&col=time&col=changetime&col=author&col=reviewer&col=keywords&desc=1&order=chang

Re: [sage-devel] Re: is ZZ(None) == 0 intentional?

2020-12-27 Thread William Stein
On Sun, Dec 27, 2020 at 10:25 AM David Roe wrote: > > It's certainly intentional: see line 662 of sage/rings/integer.pyx. Whether > it's a good idea is another question. The motivation is as Travis said, that > None behaves like False. But Python ints don't behave this way, in either > Pytho

Re: [sage-devel] Re: is ZZ(None) == 0 intentional?

2020-12-27 Thread David Roe
It's certainly intentional: see line 662 of sage/rings/integer.pyx. Whether it's a good idea is another question. The motivation is as Travis said, that None behaves like False. But Python ints don't behave this way, in either Python 2 or Python 3. I'd be fine with a change so that ZZ(None) rais

[sage-devel] Re: Bug in hom

2020-12-27 Thread enriqu...@gmail.com
Dear Travis, I basically agree with you, in the sense to fix that what equality means. At this time, equality of vector spaces does not imply equality of associated vectors. I think both choices have good reasons. I am not sure how to collaborate with these issues but I am ready to. Best, Enriqu