#12969: Coercion failures in symmetric functions
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Reporter: aschilling | Owner: sage-combinat
Type: defect | Status: new
Priority: major | Milestone: sage-5.3
Component: combinatorics | Resolution:
Keywords: symmetric functions, coercion | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by SimonKing):
{{{
sage: Ht._coerce_map_from_??
Type: builtin_function_or_method
Base Class: <type 'builtin_function_or_method'>
String Form: <built-in method _coerce_map_from_ of
MacdonaldPolynomials_ht_with_category object at 0x4686c50>
Namespace: Interactive
Definition: Ht._coerce_map_from_(self, S)
Source:
cpdef _coerce_map_from_(self, S):
"""
Override this method to specify coercions beyond those specified
in coerce_list.
If no such coercion exists, return None or False. Otherwise, it
may
return either an actual Map to use for the coercion, a callable
(in which case it will be wrapped in a Map), or True (in which
case
a generic map will be provided).
"""
return None
}}}
Question: Why is that method not overridden for the different realisations
of `MacdonaldPolynomials`?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12969#comment:6>
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