#13658: Clean up Graph.girth()
----------------------------+-----------------------------------------------
   Reporter:  ppurka        |             Owner:  jason, ncohen, rlm
       Type:  defect        |            Status:  new               
   Priority:  minor         |         Milestone:  sage-5.5          
  Component:  graph theory  |          Keywords:                    
Work issues:                |   Report Upstream:  N/A               
  Reviewers:                |           Authors:                    
  Merged in:                |      Dependencies:                    
   Stopgaps:                |  
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 Two issues I see:
 1. There seems to be a typo in the following section of the code. The
 variable `thislList` should be `thisList`. Don't know what it affects or
 if this variable is really needed to be reset.
 {{{
                             if u in thisList:
                                 best = depth*2-1
                                 thislList = set()
                                 break
 }}}
 2. The variable `seen` is never used.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13658>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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