On Fri, 9 Mar 2018, David Roe wrote:

Will I break something if I change graphs(n) without any
additional parameter to use nauty?

It did the change at https://trac.sagemath.org/ticket/24951

Sounds good to me.  You might add an algorithm keyword to the graphs
function, which defaults to nauty.

Not sure... It can be done with property=lambda _: True. I think that mostly algorithm-keyword should have a meaning -- there should be a situation where someone would prefer one over the other.

On Fri, 9 Mar 2018, 'Martin R' via sage-devel wrote:

Besides, it would also be supercool to have a class Graphs analogous to the class Posets, and have the cardinality of the first few layers built in (analogous to Posets(16).cardinality())

I am not sure about that. What should be the meaning of, say "g in graphs(10)" or "g in graphs"?

Jori Mäntysalo

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