[Cython] wrapping c code, classmethod question

[Uwe Schmitt]

Hi,

I'm trying to wrap an existing C entension as follows:

    cdef struct A:
        double * values
        int n


    cdef class Test:
        cdef A a

        @classmethod
        def buildFromData(cls, filename):

            cdef A a # = foofoo(filename)

            obj = cls()
            obj.a = a
            return obj

Running Cython the "obj.a=a" results in """Cannot convert 'A' to Python 
object""".

So: how can I instantiate extension classes from classmethods ?

Greetings, Uwe


-- 
Dr. rer. nat. Uwe Schmitt
F&E Mathematik
 
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