Splitting lists

[Ben Wolfson]

On Thu, 27 Feb 2003 04:10:17 +0100, Ferenczi Viktor wrote:

> Are there any fast, simple and elegant method to split a list by a filter
> function?
> 
> My current solutions with their shortcomings:

> # Solution 2:
> tl=[]
> fl=[]
> for e in lst:
>     if fn(e): tl.append(e)
>     else: fl.append(e)
> # Relatively slow

I don't know why you call this one relatively slow; on my system, it's
faster than the other two--which stands to reason, since the list is only
traversed once and the function is only called n times.

-- 
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