#17449: deprecate/remove Graph.to_partition and Poset.to_graph
-------------------------+-------------------------------------------------
Reporter: | Owner:
ncohen | Status: needs_review
Type: | Milestone: sage-6.5
defect | Resolution:
Priority: major | Merged in:
Component: graph | Reviewers:
theory | Work issues:
Keywords: | Commit:
Authors: | a8822900d5d9e428f4fd92d52ed9d00840ef61df
Nathann Cohen | Stopgaps:
Report Upstream: N/A |
Branch: |
u/ncohen/17449 |
Dependencies: |
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Changes (by ncohen):
* cc: dimpase (added)
Comment:
> Again, the function is documented (and we have interactive
documentation). It's not hurting anyone, so there's no problem; just leave
it be.
I do believe that it does harm by being there. It is not a function that
should ever be used in Sage or by anyone else, as other ways exist to get
the same result and because its name is unclear: we could very well decide
to make it return a different graph later, the function would still be
correct as ".to_graph()" would still turn the Poset into "a graph". I
think that knowledgeable people here (like Dima) call that 'semantics'.
While I understand that you want users to easily find out that there
exists a way to get a graph from a `Poset` by looking at the list of
methods, I also believe that ".incomparability_graph" does the job and
that users will find it. Those who know what they are looking for will
find `.hasse_diagram` quickly enough.
Somehow, I think that it all boils down to not say "the integer" but "an
integer" when "the integer" is not uniquely determined. It would be nice
if Sage had this level of strictness unless it really goes in the way of
readability.
Would you be willing, despite everything, to let us procede with the
removal of this function ? The considerations above matter to me, and also
to some extent to the other persons who concurred on the sage-devel
thread.
Thanks,
Nathann
--
Ticket URL: <http://trac.sagemath.org/ticket/17449#comment:19>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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