#13730: Speed up some graph iterations
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Reporter: dcoudert | Owner: jason, ncohen, rlm
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.6
Component: graph theory | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by dcoudert):
I'm not expert enough in iterators to answer. Furthermore, the backend for
graphs also constructs sets:
{{{
def iterator_nbrs(self, v):
return iter(set(self.iterator_in_nbrs(v)) |
set(self.iterator_out_nbrs(v)))
}}}
I don't know the reasons behind but this can certainly be
improved/simplified.
David.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13730#comment:2>
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