#15278: Hash and equality for graphs
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Reporter: SimonKing | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-5.13
Component: graph theory | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: #12601 | Stopgaps:
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Comment (by SimonKing):
A related question: Shouldn't `copy(G)` return `G`, if `G` is immutable?
Currently, we have
{{{
sage: g = graphs.CompleteGraph(400)
sage: gi = Graph(g,data_structure="static_sparse")
sage: copy(gi) is gi
False
}}}
Moreover, `copy(gi)` takes a lot of time.
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Ticket URL: <http://trac.sagemath.org/ticket/15278#comment:4>
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