#15348: "R.<a> =" syntactic sugar incorrect for EquationOrder and ZZ.extension
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Reporter: emassop | Owner:
Type: defect | Status: new
Priority: minor | Milestone:
Component: number fields | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by jdemeyer):
Replying to [comment:3 emassop]:
> Changing {{{gens()}}} would definitely also be my preferred solution. My
concern is that there might be code that assumes that {{{gens()}}} returns
a list of module generators, which would no longer be the case.
That's not a major problem. For `R.<x> =` to work, it suffices to change
the `_first_ngens()` method (without deprecation).
We could then add a boolean argument `ring` to `gens()`, defaulting to
`False` (deprecated) which returns the ''ring'' generator (i.e. new-style
`gens()`) if `ring=True`.
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Ticket URL: <http://trac.sagemath.org/ticket/15348#comment:4>
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