cdef class Parrot:
cdef void describe(self):
print "This parrot is resting."
cdef class Norwegian(Parrot):
cdef void describe(self):
Parrot.describe(self)
print "Lovely plumage!"
cdef Parrot p1, p2
p1 = Parrot()
p2 = Norwegian()
p1.describe()
p2.describe()