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filter() + simple program not outputting

Fredrik Lundh fredrik at pythonware.com
Mon Jul 26 17:27:22 EDT 1999 
(posted and mailed)

Joyce Stack <joyce at netcard.com> wrote:
> New to python but not to programming...can someone tell me why this
> simple program is not outputting when i run from the BASH prompt....any
> pointers would be helpful...thanking you in advance....
> 
> Joyce
> 
> #!/usr/bin/env python
> 
> def f(x):
>         return x%2 != 0 and x%3 != 0
>         filter(f, range(2, 25))
>         f( )

dunno. what is it supposed to do?  there's
no print statement in there, nor anything
else related to printing.  and while "f" is
declared, it's never called.  and that
function looks a bit strange -- it starts
out by returning to the caller, and thus
never runs any code.

but it's close.  could the following be
what you tried to do:

--- cut ---
#!/usr/bin/env python

def f(x):
    return x%2 != 0 and x%3 != 0

print filter(f, range(2, 25))
--- cut ---

note the use of indentation -- things at
the left margin are executed when you
run this as a script ("def" is a statement
too!).

</F>
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