class abc:
def __init__(self,x ,y,z):
self.x = x
self.y = y
self.z = z
def add(self):
c = self.x + self.y + self.z
print " sum is ",c
# fib(self,0,1,0)
print 'hi'
def fib(self1):
#self.x = x
print self1.x
...