#13425: Compute mutation type of a ClusterSeed or ClusterQuiver
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       Reporter:  gmoose05                         |         Owner:  
sage-combinat                  
           Type:  enhancement                      |        Status:  needs_work 
                    
       Priority:  major                            |     Milestone:  sage-5.9   
                    
      Component:  combinatorics                    |    Resolution:             
                    
       Keywords:  cluster algebra, quiver, days45  |   Work issues:             
                    
Report Upstream:  N/A                              |     Reviewers:  Christian 
Stump, Gregg Musikier
        Authors:  Gregg Musiker, Christian Stump   |     Merged in:             
                    
   Dependencies:  #13424                           |      Stopgaps:             
                    
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Changes (by jdemeyer):

  * status:  positive_review => needs_work


Comment:

 Doctests should write to temporary files, not to files within
 `SAGE_LOCAL`.  Probably, the function `save_quiver_data()` should take a
 `filename` parameter which should be `tmp_filename()` when used in
 doctests.

 Also: please dont do this, as it's a race condition:
 {{{
     if not os.path.exists(types_path):
         os.makedirs(types_path)
 }}}
 There is a function `sage_makedirs()` which does this in a safe way.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13425#comment:22>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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