[Tutor] tutorial 5.1.3

[David Scott]

In the Python Tutorial (the one that comes with Python), in section 5.1.3, 
there is something that I do not understand:

>>>def f(x): return x % 2 != 0 and x % 3 != 0
...
>>>filter(f, range(2, 25))
[5, 7, 11, 13, 17, 19, 23]

That example is used to compute primes.

>From what I understand, the "return" statement is returning the tested value 
(passed in from the range) if it passes both tests. However, it seems to me 
that the return statement would return either a 1 or a 0 and nothing else, 
because of the "and".

return (test expression) and (test expression). If both are true, then the 
"and" is true. else, the entire statement is false.

What am I missing or misunderstanding here?



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