#13244: make some simplicial complexes faster
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       Reporter:  jhpalmieri          |         Owner:  jhpalmieri  
           Type:  enhancement         |        Status:  needs_review
       Priority:  minor               |     Milestone:  sage-5.4    
      Component:  algebraic topology  |    Resolution:              
       Keywords:  sd40 simplicial     |   Work issues:              
Report Upstream:  N/A                 |     Reviewers:              
        Authors:  John Palmieri       |     Merged in:              
   Dependencies:                      |      Stopgaps:              
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Comment (by tscrim):

 Replying to [comment:4 jhpalmieri]:
 > > However I would argue that each of these should be implemented as
 (immutable) singletons
 >
 > I'm not sure what you mean by this. Do you mean that any two instances
 of `simplicial_complexes.K3Surface()` should be identical as far as Python
 is concerned? We could try making `SimplicialComplex` inherit from
 `UniqueRepresentation`, for example, or maybe we could do this for
 `SimplicialComplexExamples`. But I think it could be put off to another
 ticket.

 I think so. I think sage's `@cached_method` would take care of this...or
 perhaps something like
 {{{
 def an_example(self):
    if not self.has_attr(_an_example_output):
       self._an_example_output = SimplicialComplex(facets)
    return self._an_example_output
 }}}
 But I'm happy moving this to a later ticket.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13244#comment:5>
Sage <http://www.sagemath.org>
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