Python-сообщество

def counter(start):
    curr = start
    while 1:
        curr += 1
        yield curr
f1 = counter(4)
print f1                    #<generator object at 0x00BF96C0>
print f1.next()          #5
print f1.next()          #6

def counter2(start):
    return counter(start).next
f2 = counter2(3)
print f2                    #<method-wrapper 'next' of generator object at 0x00BF9850>
print f2()                 #4
print f2()                 #5