#12269: coercion and conversion for absolute_field
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Reporter: mstreng | Owner: davidloeffler
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.0
Component: number fields | Keywords: coercion conversion
absolute_field number field structure relative absolute
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by lftabera):
Forcing coercions exposes other errors in the coercion model:
{{{
K = NumberField([x^2-2, x^2-3], 'a,b')
M = K.absolute_field('c')
M_to_K, K_to_M = M.structure()
M.register_coercion(K_to_M)
K.register_coercion(M_to_K)
M.coerce_map_from(QQ)
...
UnboundLocalError: local variable 'connecting' referenced before
assignment
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12269#comment:12>
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