[Pyrex] Cannot 'see' C methods in extension types

[Nitin Madnani]

Hi Guys

I wanted to use C methods in my the extension types that I was using  
and so I wrote this:

cdef class State:
     cdef unsigned char cover_vector
     cdef int last_eng_position
     cdef readonly State prev_state

     def __init__(self):
         self.last_eng_position = -1

     def __eq__(self, State other):
         return self.cost == other.cost and self.cover_vector ==  
other.cover_vector

     def __ne__(self, State other):
         return self.cost != other.cost and self.cover_vector !=  
other.cover_vector

     cdef set_prev_state(self, State s):
         self.prev_state = s

A couple of questions:

1) When I try to call the C method from python, it complains:
AttributeError: 'State' object has no attribute 'set_prev_state'
Is there something that I am doing that is preventing me from using  
these methods? The 'extension types' guide doesn't seem to say  
anything else about it.

2) This code snippet:

     from core import * # 'core' is the module that contains the  
above pyrex code
     s1 = State()
     s2 = State()

     s1 == s2 # returns False
     s1.__eq__(s2) # returns 1

So what's going on here? Isn't the '==' operator supposed to call the  
__eq__() method?

Thanks !
Nitin