#15367: Empty lists while creating parents
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Reporter: roed | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.13
Component: coercion | Resolution:
Keywords: | Merged in:
Authors: Nils Bruin | Reviewers: Simon King
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/nbruin/ticket/15367 | b95fa73c3fca342851dde858028a12629c6147ee
Dependencies: | Stopgaps:
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Comment (by nbruin):
Replying to [comment:33 nbruin]:
> I suspect for creation cython generates a `PyObject_callobject`
I checked and it does (also when it is declared a type)
> I'm pretty sure cython's `isinstance` will just translate into
`PyObject_IsInstance`
Cython is amazing: If the second argument is a `type` it does NOT! It does
generate the more efficient `PyObject_TypeCheck`. So the latest patch
really only needed `cdef type fixed_KeyedRef = KeyedRef`.
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Ticket URL: <http://trac.sagemath.org/ticket/15367#comment:37>
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