Cython class AttributeError

Question

I have started to experiment with Cython and ran into the following problem. Consider the following class representing a vertex in the 3D space:

#Vertex.pyx
cdef         


        

Answer 1

By default cdef attributes are only accessible from within Cython. If you make it a public attribute with cdef public in front of the attribute name then Cython will generate suitable properties to be able to access it from Python.