[Pyrex] array/list of extension type

[Tomas Sirny]

Hello, thanks for answers.
Defining matrix as object works, but everytime I want to call method of
Neuron as matrix[i], I must explicitly cast it with <Neuron>. So, how
can I make it c array? To be concrete, how to define it? All methods of
Neuron are c functions(cdef ...).

Tomas


On Mon, Nov 19, 2007 at 03:20:24AM -0600, Robert Kern wrote:
> Tomas Sirny wrote:
> > Hello, 
> > I have class Neuron defined in .pxd and .pyx files. In another pyrex
> > class Network, i want to have an 'matrix' attribute of Network as list or array of Neurons. Problem is, that when I define Network with cdef, i must define Network's attributes also with cdef and I don't know how to do it with matrix.
> > 
> > cdef class Neuron:
> >     cdef int y, victories 
> >     cdef double *wx
> >     cdef double *wy
> > 
> >     def alfaDistance(self, a): ...
> >     def betaDistance(self, b): ...
> > 
> > cdef class Network:
> >     cdef double Alfa, Beta, Gama
> >     
> >     def __init__(self, rows, columns, a, b, c):
> >         self.Alfa = a
> > 	self.Beta = b
> > 	self.Gama = c
> > 	self.matrix = []
> > 	cdef Neuron n
> > 	for i from 0 <= i < self.count:
> > 	    n = Neuron(self.count, size)
> > 	    self.matrix.append(n)
> > 
> > Matrix attribute is used only in methods of Network.
> > Compilation with pyrex is ok, but when I try to use it from python,
> > raises error: "AttributeError: 'Network' object has no
> > attribute 'matrix'", on line whit self.matrix = []. 
> > Does somebody know how to do this?
> 
> cdef object matrix
> 
> -- 
> Robert Kern
> 
> "I have come to believe that the whole world is an enigma, a harmless enigma
>  that is made terrible by our own mad attempt to interpret it as though it had
>  an underlying truth."
>   -- Umberto Eco
> 
> 
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