Opened 12 months ago
Closed 12 months ago
#26666 closed enhancement (fixed)
clean generic_graph.py (part 9)  edge and vertex handlers
Reported by:  dcoudert  Owned by:  

Priority:  major  Milestone:  sage8.5 
Component:  graph theory  Keywords:  py3, graph 
Cc:  tscrim, chapoton  Merged in:  
Authors:  David Coudert  Reviewers:  Travis Scrimshaw 
Report Upstream:  N/A  Work issues:  
Branch:  1c43e4e (Commits)  Commit:  1c43e4ea526f3edb42304c3a170ea402da7b1695 
Dependencies:  Stopgaps: 
Description
In this ticket, we clean methods for adding/removing vertices/edges and enumerating neighbors. The main changes are:
 add parameter
sort
to method.vertices
. This gives an alternative tolist(G)
.  in method
delete_vertices
, we add as first instructionvertices = list(vertices)
. This way we now allow to call this method with an iterator. Before, the method was not removing any vertex when called with an iterator. This will certainly help reducing further the number of calls to.vertices()
.  in method
vertex_iterator
, we remove doctests related to former networkx backend  change in method
remove_multiple_edges
that should make it faster  PEP8 cleaning
Change History (12)
comment:1 Changed 12 months ago by
 Branch set to public/26666_generic_graph_part_9_edge_and_vertex
 Cc tscrim chapoton added
 Commit set to 0070906a5ddd0d72c2f5d082bb70da65744bdd9c
 Keywords py3 graph added
 Status changed from new to needs_review
comment:2 Changed 12 months ago by
2 trivial failing doctests in src/sage/graphs/bipartite_graph.py
comment:3 Changed 12 months ago by
 Commit changed from 0070906a5ddd0d72c2f5d082bb70da65744bdd9c to ecfc5c669e49deb9eb0bca906b25764b3f9a8925
comment:4 Changed 12 months ago by
oups, fixed.
comment:5 Changed 12 months ago by
 Summary changed from clean connectivity.pyx (part 9)  edge and vertex handlers to clean generic_graph.py (part 9)  edge and vertex handlers
comment:6 Changed 12 months ago by
 Commit changed from ecfc5c669e49deb9eb0bca906b25764b3f9a8925 to 44c76f2e457f94ab0331a09ef6c924a63fd0d60e
Branch pushed to git repo; I updated commit sha1. New commits:
44c76f2  trac #26666: avoid .vertices() in method clear

comment:7 Changed 12 months ago by
We also avoid sorting vertices before removing them from the graph.
comment:8 Changed 12 months ago by
Just for clarity, I think it is better to add these parentheses: if (not sort) and key:
Since u
and v
are code inputs for the oneline descriptions, I think it would be better to do
Delete all edges from `u` to `v`. +Delete all edges from ``u`` to ``v``.
I think the OUTPUT:
block for has_vertex
is functionally useless and can be safely removed (it is essentially a copy of the oneline description).
Other than that LGTM.
comment:9 Changed 12 months ago by
 Commit changed from 44c76f2e457f94ab0331a09ef6c924a63fd0d60e to 1c43e4ea526f3edb42304c3a170ea402da7b1695
Branch pushed to git repo; I updated commit sha1. New commits:
1c43e4e  trac #26666: implement reviewer's comments

comment:10 Changed 12 months ago by
i have implemented all you comments. Should be better now.
comment:11 Changed 12 months ago by
 Reviewers set to Travis Scrimshaw
 Status changed from needs_review to positive_review
Thanks. LGTM.
comment:12 Changed 12 months ago by
 Branch changed from public/26666_generic_graph_part_9_edge_and_vertex to 1c43e4ea526f3edb42304c3a170ea402da7b1695
 Resolution set to fixed
 Status changed from positive_review to closed
New commits:
trac #26666: generic_graph.py (part 9)  edge and vertex handlers