#12969: Coercion failures in symmetric functions
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Reporter: aschilling | Owner: sage-combinat
Type: defect | Status: needs_review
Priority: major | Milestone: sage-5.3
Component: combinatorics | Resolution:
Keywords: symmetric functions, coercion | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Simon King | Merged in:
Dependencies: | Stopgaps:
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Comment (by SimonKing):
I found that a coercion from None is sought when asking the following:
{{{
sage: P = QQ['x','y','a']
sage: P.has_coerce_map_from(str)
}}}
I suggest to fix that ''here'', unless it is too complicated.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12969#comment:32>
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