#18769: Implement affinization crystal and allow KyotoPathModel to use extended
weight lattice
-------------------------------------+-------------------------------------
       Reporter:  tscrim             |        Owner:  sage-combinat
           Type:  enhancement        |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.8
      Component:  combinatorics      |   Resolution:
       Keywords:  crystals           |    Merged in:
        Authors:  Travis Scrimshaw   |    Reviewers:  Ben Salisbury
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  public/crystals/kyoto_path_model_weight-18769|  
c18b71c7851e71f8fc1bce382df09bfcdde574f0
   Dependencies:                     |     Stopgaps:
-------------------------------------+-------------------------------------

Comment (by tscrim):

 Okay, so the problem is that we are creating `fundamental_weight(0)`,
 where `0` is a Sage integer, which is then cached. So I'm reworking the
 doctests to call `fundamental_weights` for consistency. Since this is not
 an issue in terms of usage, just print representations, I'm just
 suppressing this minor machine dependency/inconsistency.

--
Ticket URL: <http://trac.sagemath.org/ticket/18769#comment:17>
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