#15718: Implement the __init_extra__ protocol of categories for Cython classes.
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Reporter: nthiery | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.1
Component: categories | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by nthiery):
Replying to [comment:1 SimonKing]:
> It would probably be rather easy:
>
> Currently, we only look into the mro of the class; if the class is a
Python class, then it is a subclass of the category's parent class (since
the quest for `__init_extra__` takes place after category initialisation).
But in the case of Cython class, we simply need to look explicitly into
''both'' the class' mro and the category's parent class' mro.
+1!
For the record: this will require calling
sage.misc.structure.getattr_from_other_class, to emulate the parent
being an instance of the category's parent class.
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Ticket URL: <http://trac.sagemath.org/ticket/15718#comment:2>
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