#15247: Introduce a baseclass for singletons
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Reporter: SimonKing | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-5.13
Component: performance | Resolution:
Keywords: | Merged in:
Authors: Simon King | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/SimonKing/ticket/15247 | add22e67c8eddafc7097aee8ee1b6883596a8a89
Dependencies: | Stopgaps:
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Changes (by SimonKing):
* status: needs_review => needs_work
Comment:
I have now clue what is going wrong here.
I tested saving a rational number in vanilla sage, and I could read the
pickle after rebuilding Sage with my branch. However, it seems that some
old pickles in the pickle jar manage to create a version of the integer
ring without calling its `__init__`. This could be accomplished by
directly calling `__new__`. But is this really done somewhere?
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Ticket URL: <http://trac.sagemath.org/ticket/15247#comment:8>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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