#13589: Controlling C3 to solve once for all the Method Resolution Order issues
for
category classes
----------------------------------------------------------+-----------------
Reporter: nthiery | Owner:
nthiery
Type: defect | Status:
needs_review
Priority: major | Milestone:
sage-5.11
Component: categories | Resolution:
Keywords: method resolution order, C3 | Work issues:
Report Upstream: N/A | Reviewers:
Simon King, Florent Hivert
Authors: Nicolas M. Thiéry | Merged in:
Dependencies: #12894, #12876, #11935, #12895, #10193 | Stopgaps:
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Comment (by SimonKing):
Nicolas and I just discussed: `_cmp_key` should at least be a cached
method, not a plain method, so that it plays nicely with super(...).
However, we may try whether lazy attributes would work, because Nicolas
calls super(...) only to compute the value, but the value that should
eventually be used does not depend on the class.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13589#comment:41>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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