#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, Simon King | Merged in:
Dependencies: #12894, #12876, #11935, #12895, #10193 | Stopgaps:
----------------------------------------------------------+-----------------
Comment (by SimonKing):
Worse: Compilation of sage.misc.c3_controlled fails with
{{{
Error compiling Cython file:
------------------------------------------------------------
...
sage: from sage.misc.c3_controlled import category_sort_key
sage: category_sort_key(Rings()) is Rings()._cmp_key
True
"""
return C._cmp_key
^
------------------------------------------------------------
sage/misc/c3_controlled.pyx:377:12: undeclared name not builtin: C
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13589#comment:73>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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