Opened 14 months ago
Closed 12 months ago
#26722 closed enhancement (fixed)
py3: work on the sandpile problem
Reported by:  chapoton  Owned by:  

Priority:  major  Milestone:  sage8.7 
Component:  python3  Keywords:  
Cc:  tscrim  Merged in:  
Authors:  Frédéric Chapoton  Reviewers:  Travis Scrimshaw 
Report Upstream:  N/A  Work issues:  
Branch:  6b63e8d (Commits)  Commit:  6b63e8deb6cf5bde5e76fa09851f974d50533618 
Dependencies:  Stopgaps: 
Description (last modified by )
We change the name of the sink vertices in some sandpile constructions.
Change History (11)
comment:1 Changed 14 months ago by
 Branch set to u/chapoton/26722
 Commit set to 8fd6b68531ff343e048a1c96b9183c1a529f26cf
comment:2 Changed 13 months ago by
 Milestone changed from sage8.5 to sage8.7
comment:3 Changed 12 months ago by
 Commit changed from 8fd6b68531ff343e048a1c96b9183c1a529f26cf to ae08212e98267377b1fb0b9d8b3c204e0ec198a8
Branch pushed to git repo; I updated commit sha1. New commits:
ae08212  Merge branch 'u/chapoton/26722' in 8.7.B1

comment:4 Changed 12 months ago by
 Branch changed from u/chapoton/26722 to public/ticket/26722
 Commit changed from ae08212e98267377b1fb0b9d8b3c204e0ec198a8 to 6b63e8deb6cf5bde5e76fa09851f974d50533618
 Dependencies #26630 deleted
 Status changed from new to needs_review
comment:6 Changed 12 months ago by
 Description modified (diff)
 Reviewers set to Travis Scrimshaw
 Status changed from needs_review to positive_review
LGTM.
comment:7 followup: ↓ 8 Changed 12 months ago by
Also OK on py2 and py3 ;) However, instead of using (1, 1)
, one could define a variable sink = (1, 1)
for clarity. I will not fight for it.
I noticed that the sandpile code contains a lot of calls to .vertices()
and .edges()
, including a .vertices()[0]
. So multiple improvements are possible. Also, some random graphs generators could be in digraph_generators.py
instead of sandpile.py
. Other tickets are needed.
comment:8 in reply to: ↑ 7 Changed 12 months ago by
Replying to dcoudert:
Also OK on py2 and py3 ;) However, instead of using
(1, 1)
, one could define a variablesink = (1, 1)
for clarity. I will not fight for it.
Followup ticket when the whole module gets a cleaning.
I noticed that the sandpile code contains a lot of calls to
.vertices()
and.edges()
, including a.vertices()[0]
. So multiple improvements are possible. Also, some random graphs generators could be indigraph_generators.py
instead ofsandpile.py
. Other tickets are needed.
Yea, it is old code IIRC that has not been really maintained for quite some time.
comment:9 Changed 12 months ago by
Let me know if I can help for the next steps. I'm currently blocked in graphs as I'm waiting for the next beta (inclusion of many tickets) and several tickets are waiting for review.
comment:10 Changed 12 months ago by
I am not able to really contribute code for the near future. The quicktomedium reviews are all I have time for. :/
Sorry I am not helping more with actual code.
comment:11 Changed 12 months ago by
 Branch changed from public/ticket/26722 to 6b63e8deb6cf5bde5e76fa09851f974d50533618
 Resolution set to fixed
 Status changed from positive_review to closed
New commits:
some work on the sandpile problem