Fibonacci series

Script

#!/usr/local/bin/python3.1
import time

def fib(n):
        """Print a Fibonacci series up to n."""
        a, b = 0, 1
        while b < n:
                print(b),
                time.sleep(1),
                a, b = b, a + b

# Now call the function we just defined:
fib(12345678)

Execution

1
1
2
3
5
8
13
21
34
55
89
144
233
377
610
987
1597
2584
4181
6765
10946
17711
28657
46368
75025
121393
196418
317811
514229
832040
1346269
2178309
3524578
5702887
9227465