#12351: AttributeError when ploting a poset
-------------------------------+--------------------------------------------
   Reporter:  slabbe           |          Owner:  sage-combinat  
       Type:  defect           |         Status:  positive_review
   Priority:  major            |      Milestone:  sage-5.0       
  Component:  combinatorics    |       Keywords:  poset          
Work_issues:                   |       Upstream:  N/A            
   Reviewer:  Sébastien Labbé  |         Author:  Simon King     
     Merged:                   |   Dependencies:                 
-------------------------------+--------------------------------------------
Changes (by slabbe):

  * status:  needs_review => positive_review
  * reviewer:  => Sébastien Labbé


Comment:

 Great!

 I tested it (on sage-4.7.2) and it solves the problem. All tests pass on
 {{{sage/combinat}}} repository. Documentation builds fine. Positive
 review.

 But now, I get another problem. When the package {{{sage -i dot2tex}}} is
 installed the method {{{layout_graphviz}}} gets called by {{{plot}}} and
 it seems broken for another reason. But this should be another ticket :

 {{{
 sage: H.plot()
 Traceback (most recent call last):
 ...
 AttributeError: 'str' object has no attribute 'iteritems'
 }}}

 which is also obtained by doing

 {{{
 sage: H.layout_graphviz()    # require dot2tex
 Traceback (most recent call last):
 ...
 AttributeError: 'str' object has no attribute 'iteritems'
 }}}

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12351#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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