On Fri, 05 Oct 2007 11:45:07 -0400, Steve Holden wrote:
> [EMAIL PROTECTED] wrote:
>> On Oct 5, 10:27 am, Abandoned <[EMAIL PROTECTED]> wrote:
>>> Hi..
>>> I have a problem..
>>> list1=[11, 223, 334, 4223...] 1 million element
>>> list2=[22,223,4223,2355...] 500.000 element
>>>
>>> I want to difference list1 to list2 but order very importent..
>>>
>>> My result must be:
>>> list3=[11,334,...]
>>>
>>> I do this use FOR easly but the speed very imported for me. I want to
>>> the fastest method please help me.
>>
>> Research the "set" data type. :)
>>
> Probably not a very helpful suggestion given that ordering is stated to
> be very important.
A `set()` can be part of such a solution.
Ciao,
Marc 'BlackJack' Rintsch
--
http://mail.python.org/mailman/listinfo/python-list
