#13308: eigenspaces_left sometimes raises an error while the documentation sais 
it
should work.
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       Reporter:  mderickx        |         Owner:  jason, was
           Type:  defect          |        Status:  new       
       Priority:  major           |     Milestone:  sage-5.3  
      Component:  linear algebra  |    Resolution:            
       Keywords:                  |   Work issues:            
Report Upstream:  N/A             |     Reviewers:            
        Authors:                  |     Merged in:            
   Dependencies:                  |      Stopgaps:            
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Comment (by daniels):

 The problem was that the variable `i` from the list comprehension on line
 4807 leaked into the outer scope, overwriting the loop variable of the
 same name from the outer for-loop. The latter is used in constructing the
 name of a generator for the root field. In some cases the generator name
 therefore became invalid (e.g. `aa0+3`).

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13308#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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