[Tutor] equality check difference

[Chris Fuller]

Something I forgot to add.  This idea of side-effects with the conditionals is 
actually the whole point of the Python built-in functinos any() and all().  
any() will evaluate a generator expression and stops when one of them 
evaluates to True, and all() works the same, but stops when a False is 
encountered.  If you google these, you are bound to find some helpful examples 
and explanations.

For example,
https://docs.python.org/2.7/howto/functional.html

Cheers