#12808: Optimize ClassCallMetaClass using Cython
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       Reporter:  hivert                          |         Owner:  jason       
           Type:  enhancement                     |        Status:  needs_review
       Priority:  major                           |     Milestone:  sage-5.0    
      Component:  misc                            |    Resolution:              
       Keywords:  classcall UniqueRepresentation  |   Work issues:              
Report Upstream:  N/A                             |     Reviewers:              
        Authors:  Florent Hivert                  |     Merged in:              
   Dependencies:                                  |      Stopgaps:              
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Comment (by SimonKing):

 It is relatively easy to change nested_class.py into nested_class.pyx
 (though not totally trivial). But I was not able to change
 `NestedClassMetaclass` into a cdef class.

 Apparently, the problem is that during initialisation of a cdef class
 (derived from type, at least) the name and the module of that class are
 not known yet. Hence, a crash in nested_pickle, which is called during
 initialisation. However, if one determines name and module in a different
 way and passes it directly to nested_pickle, then there is a different
 crash, and here I don't understand what is wrong, yet.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12808#comment:31>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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