#15367: Empty lists while creating parents
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       Reporter:  roed               |        Owner:
           Type:  defect             |       Status:  new
       Priority:  major              |    Milestone:  sage-5.13
      Component:  memleak            |   Resolution:
       Keywords:                     |    Merged in:
        Authors:  Nils Bruin         |    Reviewers:  Simon King
Report Upstream:  N/A                |  Work issues:  Improve timings
         Branch:                     |       Commit:
  u/SimonKing/ticket/15367           |  a2852e9610a76e6df392544b01b8e3c319b1cdd4
   Dependencies:                     |     Stopgaps:
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Comment (by SimonKing):

 Replying to [comment:24 nbruin]:
 > Finally, note that `MonoDict` and `TripleDict` are optimized for read
 speed, not particularly the other operations.

 OK, then we should indeed better separate the test `v=T[i,j,k]` (both
 existing and non-existing items), `del T[i,j,k]` and `T[i,j,k]=v` (both
 adding new items and overriding an existing item).

--
Ticket URL: <http://trac.sagemath.org/ticket/15367#comment:26>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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