#12387: Everything is not well with dense graph backends
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Reporter: ncohen | Owner: jason, ncohen, rlm
Type: defect | Status: new
Priority: major | Milestone: sage-5.0
Component: graph theory | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by brunellus):
The dense graph code doesn't support edge labeling, but the code in
point_configuration.py rely on this. Maybe it is a mistake that
dense_graph doesn't crash and burn whenever someone call add_edge(u, v,
nonNone) -- but it is consistent with cases like
{{{
sage: G=Graph(multiedges=False)
sage: G.add_edge(0,1)
sage: G.add_edge(0,1)
sage: G.edges()
[(0, 1, None)]
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12387#comment:1>
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