#6588: Categories for root systems
--------------------------------------------------------+-------------------
   Reporter:  nthiery                                   |          Owner:  
mhansen                 
       Type:  enhancement                               |         Status:  
needs_work              
   Priority:  major                                     |      Milestone:  
sage-5.0                
  Component:  combinatorics                             |       Keywords:  root 
systems, categories
Work_issues:                                            |       Upstream:  N/A  
                   
   Reviewer:  Anne Schilling, Mark Shimozono, PatchBot  |         Author:  
Nicolas M. ThiƩry       
     Merged:                                            |   Dependencies:  
#10817                  
--------------------------------------------------------+-------------------
Changes (by davidloeffler):

  * status:  needs_review => needs_work
  * reviewer:  Anne Schilling, Mark Shimozono => Anne Schilling, Mark
               Shimozono, PatchBot


Comment:

 Fails doctests on Sage 5.0.beta7:
 {{{
 sage -t -long devel/sage-main/sage/combinat/root_system/weight_space.py
 **********************************************************************
 File "/storage/masiao/sage-5.0.beta7/devel/sage-
 main/sage/combinat/root_system/weight_space.py", line 126:
     sage: Q.null_root(0)[index]
 Exception raised:
     Traceback (most recent call last):
       File "/storage/masiao/sage-5.0.beta7/local/bin/ncadoctest.py", line
 1231, in run_one_test
         self.run_one_example(test, example, filename, compileflags)
       File "/storage/masiao/sage-5.0.beta7/local/bin/sagedoctest.py", line
 38, in run_one_example
         OrigDocTestRunner.run_one_example(self, test, example, filename,
 compileflags)
       File "/storage/masiao/sage-5.0.beta7/local/bin/ncadoctest.py", line
 1172, in run_one_example
         compileflags, 1) in test.globs
       File "<doctest __main__.example_1[17]>", line 1, in <module>
         Q.null_root(Integer(0))[index]###line 126:
     sage: Q.null_root(0)[index]
     TypeError: __call__() takes exactly 0 positional arguments (1 given)
 **********************************************************************
 }}}
 (The patchbot found this, but I also reproduced it by hand)

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6588#comment:13>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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