multiply each element of a list by a number

[Martin]

you might also want to look into the map(elem), and filter(elem) builtins


>>> def multby3(elem):
...     return elem * 3
...
>>> map(multby3, (1, 2, 3, ))
[3, 6, 9]
>>> help(map)
>>> def even(elem):
...     return not elem % 2
...
>>> filter(even, (1, 2, 3, ))
(2,)
>>> help(filter)
KeyboardInterrupt
>>> map(multby3, filter(even, (1, 2, 3, )))
[6]
>>>

hth
martin

2008/12/27 Scott David Daniels <Scott.Daniels at acm.org>:
> Tim Chase wrote:
>>>
>>> What does *not* work is         3 * [0,1,2]
>>> As you know, this gives
>>>        [0,1,2,0,1,2,0,1,2]
>>> What I am hoping for is
>>>        [0,3,6]


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