__doc__ = u"""
>>> foo = Foo()
>>> fee = Fee()
>>> faa = Faa()
>>> fee.bof()
Fee bof 0
>>> faa.bof()
Foo bof 0
"""
cdef class Foo:
cdef int val
def __init__(self):
self.val = 0
cdef class Fee(Foo):
def bof(self):
print u'Fee bof', self.val
cdef class Faa(Fee):
def bof(self):
print u'Foo bof', self.val