n00m <[EMAIL PROTECTED]> writes:
> def f(i,sm):
> if i+1==len(a):
> print sm+a[i]
> return sm+a[i]
> else:
> f(i+1,sm+a[i])
>
> a=[1,2,3,4,5]
>
> print f(0,0)
>
> >>>
> 15
> None
> >>>
Here's one to meditate on:
>>> def foo():
... print "foo"
...
>>> print foo()
foo
None
>>> def bar():
... return "bar"
...
>>> print bar()
bar
>>> def baz():
... pass
...
>>> print baz()
None
It should be fairly clear how these three are different. If not, I
suspect you haven't worked your way through the Python tutorial;
please do so.
<URL:http://www.python.org/tut/>
--
\ "Are you pondering what I'm pondering?" "Well, I think so, |
`\ Brain, but if Jimmy cracks corn, and no one cares, why does he |
_o__) keep doing it?" -- _Pinky and The Brain_ |
Ben Finney
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