[BangPypers] Are comprehensions faster?

[Senthil Kumaran]

On Mon, Feb 9, 2009 at 7:06 PM, Senthil Kumaran <orsenthil at gmail.com> wrote:
>>>> timeit.Timer("for i in range(1000): l.append(i)","l=[]").timeit(number=1000)
> 0.21927285194396973
>
> You see that is slow and the reason is  l.append being called again
> and again. lets eliminate it.

Sorry, it is slow because the append method "Look-up" on the list
object is done again and again.

Read further. Rest of my explanation is okay.



-- 
Senthil