As an amendment to my previous email, the Python statements which I ran in the interactive interpreter and then pasted into my email were quoted by my email client. In the interpreter, you will see three greater-than signs (>>>) which means a statement has finished running and the interpreter is waiting and happy to accept another. If you see three dots (...) instead, it means your statements isn't complete and Python is expecting something else to finish it, or that an indented block is expected. For example: >>> age = 16 >>> if age > 21: ... print "You can drink in the USA!" ... else: ... print "You're too young, sorry." ... You're too young, sorry. -- James Scholes http://twitter.com/JamesScholes