#10953: is_regular yields StopIterator error on empty graph
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   Reporter:  pgdx          |          Owner:  jason, ncohen, rlm               
      
       Type:  defect        |         Status:  needs_review                     
      
   Priority:  minor         |      Milestone:                                   
      
  Component:  graph theory  |       Keywords:  regular is_regular empty graph 
iterator
Work_issues:                |       Upstream:  N/A                              
      
   Reviewer:                |         Author:                                   
      
     Merged:                |   Dependencies:                                   
      
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Changes (by mjo):

 * cc: mjo (added)


Comment:

 You should include the ticket number in the doctest.

 I would test self.order() rather than len(self) to save the reader from
 having to go look up what `__len__` does, but that's just personal taste.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10953#comment:2>
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