Remove duplicates in a sequence?

[Aahz Maruch]

In article <38a39011.603799531 at news1.on.sympatico.ca>,
Robert Roy <rjroy at takingcontrol.com> wrote:
>
>There is a recent thread on this subject. If I recall, what seemed
>fastest was 
>mydict={}
>for item in mylist:
>	mydict[item]=None
>mylist = mydict.keys()

Actually, the Timbot corrected me to point out that

	mydict[item]=1

is slightly faster.
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