#9894: Group cohomology spkg, version 2.1
-------------------------------------------------------------------------------------------------------------------------------+
   Reporter:  SimonKing                                                         
                                               |       Owner:  tbd              
                  
       Type:  enhancement                                                       
                                               |      Status:  needs_work       
                  
   Priority:  major                                                             
                                               |   Milestone:  sage-4.6         
                  
  Component:  optional packages                                                 
                                               |    Keywords:  modular group 
cohomology solaris t2
     Author:  Simon King                                                        
                                               |    Upstream:  N/A              
                  
   Reviewer:                                                                    
                                               |      Merged:                   
                  
Work_issues:  bug in find_relations on some systems; tests should work 
independent of the data the user has on his/her system  |  
-------------------------------------------------------------------------------------------------------------------------------+
Changes (by SimonKing):

  * work_issues:  tests should work independent of the data the user has on
                  his/her system => bug in find_relations
                  on some systems; tests should work
                  independent of the data the user has on
                  his/her system


Comment:

 Perhaps I found the solution: In {{{find_relations}}} (and various other
 places), I parsed an ideal M in Singular into a list of strings as
 follows:
 {{{
 singular.eval('print(%s)'%M.name()).split(',\n')
 }}}

 I guess that {{{split(',\n')}}} is a mistake: There are systems (including
 OS X?) on which '\n' is not the line break character. So, I should better
 do
 {{{
 [t.strip() for t in singular.eval('print(%s)'%M.name()).split(',')]
 }}}

 I am now preparing and testing an updated version. So, until later...

 Best regards,

 Simon

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9894#comment:12>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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