#19385: Refactor DiGraph.__init__
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Reporter: | Owner:
ncohen | Status: needs_review
Type: | Milestone: sage-6.9
enhancement | Resolution:
Priority: major | Merged in:
Component: graph | Reviewers: Travis Scrimshaw
theory | Work issues:
Keywords: | Commit:
Authors: | 99c8601b947b746cfd0cbbca4c836b82b3ac5dde
Nathann Cohen | Stopgaps:
Report Upstream: N/A |
Branch: |
u/ncohen/19385 |
Dependencies: |
#19381 |
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Comment (by ncohen):
> I'm worried that this change of behavior of how you handle weighted
graphs could break other people's code. Unfortunately I can't comment on
the correctness of either behavior, but it might have been a "feature"
that others were using.
If you build a graph from a matrix in which all weights are 1 it is not
considered as weighted. If any weight is different from 1 then it is
considered to be weighted.
To me, this looks like a dangerous behaviour.
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/19385#comment:14>
Sage <http://www.sagemath.org>
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