On Wednesday, March 19, 2014 5:19:36 PM UTC-4, kcrisman wrote:
>
>
>
>> Can you try using the "neighbors" keyword with something?
>>
>> sage: list(G.breadth_first_search(0,neighbors=lambda x: 
>> sorted(G.neighbors(x))))
>> [0, 8, 11, 19, 1, 12, 16, 2, 5, 9, 4, 15, 14, 18, 7, 6, 10, 13, 17, 3]
>>
>
> Except that's not right, because it lists them all.  I tried putting [0] 
> in some logical places but it didn't seem to work right away - but I bet 
> this will give you a good start for a final solution!
>
>>
>> Sorry for having to use the lambda function.  I'm not sure there is a 
>> better way to do it.
>>
>
Aargh, and

sage: list(G.breadth_first_search(0,neighbors=lambda x: 
[sorted(G.neighbors(x))[0]] ))
[0, 8] 

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