#12357: Make groupoids garbage collectable
------------------------------------------------+---------------------------
       Reporter:  SimonKing                     |         Owner:  rlm           
   
           Type:  defect                        |        Status:  needs_work    
   
       Priority:  major                         |     Milestone:  sage-pending  
   
      Component:  memleak                       |    Resolution:                
   
       Keywords:  groupoid cache Cernay2012     |   Work issues:                
   
Report Upstream:  N/A                           |     Reviewers:  Jean-Pierre 
Flori
        Authors:  Simon King                    |     Merged in:                
   
   Dependencies:  #715, #11521, #12313, #11943  |      Stopgaps:                
   
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Changes (by SimonKing):

  * status:  needs_review => needs_work


Comment:

 I got one doctest error, which unfortunately shows that the patch does not
 solve the problem it was created for:
 {{{
 File
 "/home/simon/SAGE/debug/sage-5.6.rc0/devel/sage/sage/categories/groupoid.pyx",
 line 64:
     sage: n in map(id, gc.get_objects())
 Expected:
     False
 Got:
     True
 }}}

 Hence, some garbage that was supposed to get collected did not become
 collected. And there also seems to be a timeout in
 {{{
 sage -t -force_lib "devel/sage/doc/en/bordeaux_2008/birds_other.rst"
 }}}

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12357#comment:23>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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