sage: import_statements(Matroid)
from sage.matroids.constructor import Matroid
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I then get:
) failed:
NotImplementedError: subclasses need to impleme
nt this.>
However, as I mentioned above, it makes more sense to use tutte_polynomial
from Graph in my situation (given that its bug has been fixed). So my
problem no longer really exists.
Thanks for the help!
On Thursday
On Thursday, 14 May 2015 21:16:03 UTC+1, David Perkinson wrote:
>
> After putting
>
> import sage.matroids.matroid
>
how about
from sage.matroids.matroid import Matroid
>
> in sandpile.py and running sage -br, I get the following:
>
> sage: f = Sandpile(graphs.CycleGraph(4),0)
> sage: f.t
I guess that since the bug in the tutte_polynomial method for Graph will be
fixed in sage 6.7, I don't need to use the Matroid version anyway.
On Thursday, May 14, 2015 at 1:16:03 PM UTC-7, David Perkinson wrote:
>
> After putting
>
> import sage.matroids.matroid
>
> in sandpile.py and running
After putting
import sage.matroids.matroid
in sandpile.py and running sage -br, I get the following:
sage: f = Sandpile(graphs.CycleGraph(4),0)
sage: f.tutte_polynomial()
---
NameError Traceb
On Thursday, 14 May 2015 19:32:48 UTC+1, David Perkinson wrote:
>
> I am working on sandpile.py and would like to use tutte_polynomial from
> sage/matroids/matroid.pyx. Could someone tell me the correct import
> statement put in sandpile.py?
>
If you import sage.matroids.matroid you can creat
