#10448: Extensions of ZZ are not unique parents
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Reporter: SimonKing | Owner: davidloeffler
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.6.1
Component: number fields | Keywords: uniqueness of parents
Author: Simon King | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by roed):
I somewhat prefer using `sage.structure.factory.UniqueFactory` rather than
`cached_function` for object creation. The benefits are that you get
better handling of duplicate keys, pickling and unpickling via the
factory. What you've implemented is certainly better than the status quo
though, and I'd be up for giving it a positive review; I just wanted to
bring up the `UniqueFactory` approach in case you felt motivated to do it.
:-)
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10448#comment:9>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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