[sage-devel] performance issue with poset constructor

2017-09-10 Thread 'Martin R' via sage-devel
Dear all! I need some guidance with yet another initializer, this time posets. The ticket is https://trac.sagemath.org/ticket/23825, the crucial issue is that, to create a poset, it seems that we first create a digraph corresponding to the data, then turn this digraph into a Hasse diagram, and

Re: [sage-devel] Online Sage Days

2017-09-10 Thread Vincent Delecroix
+1 Would make sense to come up with topics (we are discussing it right now in this thread). And then, we could set up a date poll for each of them. (Might be what you were suggesting) For the themtaics, I will be up for * Python 3 * (Random) testing / speed regression 1) the test sui

[sage-devel] Sage sample / sage packaging template

2017-09-10 Thread Maarten Derickx
Changed the subject to not clutter Davids thread. On Sunday, 10 September 2017 12:01:51 UTC+2, Jeroen Demeyer wrote: > > On 2017-09-10 06:09, Maarten Derickx wrote: > > I plan to work on https://github.com/sagemath/sage_sample quite a bit. > For which I hope that it falls under sage packaging

Re: [sage-devel] Online Sage Days

2017-09-10 Thread Jeroen Demeyer
On 2017-09-10 06:09, Maarten Derickx wrote: I plan to work on https://github.com/sagemath/sage_sample quite a bit. For which I hope that it falls under sage packaging ;) I think we have 2 or 3 such projects in the mean time. Maybe we should take the best ideas from each. -- You received thi

[sage-devel] Re: performance issue with initialization of trees

2017-09-10 Thread 'Martin R' via sage-devel
Great! I created #23821 to collect improvements! Martin Am Sonntag, 10. September 2017 08:19:02 UTC+2 schrieb Travis Scrimshaw: > > Hey Martin, >I am also getting similar timings, but actually testing Permutations(7) > both times. :P What is more interesting is %prun: > > sage: %prun L = [p

[sage-devel] Re: 2+2 in python3

2017-09-10 Thread Frédéric Chapoton
To be honest, I must say that the "import sage.all" fails. This is why I need the next line to be able to use ZZ.. Le dimanche 10 septembre 2017 08:16:09 UTC+2, Frédéric Chapoton a écrit : > > Hello everybody, > > I just want to share the little pleasure that sage managed to add 2+2 in > python3

Re: [sage-devel] 2+2 in python3

2017-09-10 Thread Frédéric Chapoton
This problem has not really been fixed in a proper way : a hack is used to bypass the issue. Le dimanche 10 septembre 2017 08:34:18 UTC+2, François Bissey a écrit : > > > > On 10/09/2017, at 18:16, Frédéric Chapoton > wrote: > > > > Hello everybody, > > > > I just want to share the little pl

[sage-devel] Re: 2+2 in python3

2017-09-10 Thread Frédéric Chapoton
Sadly, this did work with 8.1.beta3, but no longer works with 8.1.beta4. :( Le dimanche 10 septembre 2017 08:30:08 UTC+2, Frédéric Chapoton a écrit : > > How to try to reproduce this: > > - create a fresh new clone of the git repo > - switch to the branch public/python3-experiment-v2 > - uplo