#14159: Don't install callbacks on values of TripleDict, MonoDict
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Reporter: nbruin | Owner: tbd
Type: PLEASE CHANGE | Status: new
Priority: major | Milestone: sage-5.8
Component: PLEASE CHANGE | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by SimonKing):
Replying to [comment:2 nbruin]:
> Replying to [comment:1 SimonKing]:
> > 2. If an existing entry is overwritten by `__setitem__` then its
callback will be removed.
> I guess you could reach into the `KeyedRef` object and invalidate the
key to prevent action on callback. Doing so would complicate all our dict
setting and deleting, so I think that is not an attractive option.
So, what about the first option? It would make sure that an entry will
only be deleted if the value is identical with the object whose callback
is being called.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14159#comment:3>
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