#!/usr/local/bin/python

# this is just another generator example
# The only thing here is the use of the parallel assignments

def fib(n):

    prevprev = 0
    prev = 1

    while True:
        yield (prevprev)
        prevprev, prev = prev, (prevprev+prev)  # Parallel assignments

#       newprev = prevprev + prev
#       prevprev = prev
#       prev = newprev



fibs = fib(0)

print fibs.next()
print fibs.next()
print fibs.next()
print fibs.next()
print fibs.next()
print fibs.next()
print fibs.next()
print fibs.next()
print fibs.next()