westkill:illipython gfrancis$ python 
Python 2.4.3 (#1, Jan 10 2007, 12:05:23) 
[GCC 4.0.1 (Apple Computer, Inc. build 5250)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 1 + 1
2
>>> for i in range(10):
...   print i
... 
0
1
2
3
4
5
6
7
8
9
>>> print hello
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
NameError: name 'hello' is not defined
>>> print "hello"
hello
>>> a = 1
>>> b = 1
>>> c = a + b
>>> print c
2
>>> for i in range(10):
...   a=b
...   b=c
...   c = a+b
...   print c
... 
377
610
987
1597
2584
4181
6765
10946
17711
28657
>>> a = 1
>>> b = 1
>>> for i in range(10):
...  c = a + b
...  print c
...  a = b
...  b = c
... 
2
3
5
8
13
21
34
55
89
144
>>> def fib(x,y):
...  z = x + y
...  print z
...  x = y
...  y = z
... 
>>> fib(1,1)
2
>>> def fib(xin, yin):
...   x = xin 
...   y = yin
...   for i in range(20):
...     z = x+y
...     print z
...     x = y
...     y = z
... 
>>> fib(1,1)
2
3
5
8
13
21
34
55
89
144
233
377
610
987
1597
2584
4181
6765
10946
17711
>>> 


