Multiplication error in python

[Chris Rebert]

On Tue, Sep 27, 2011 at 10:21 AM, sakthi <sakthi92 at gmail.com> wrote:
> In the following code,
>>>> l=[1,2,3,4,5]
>>>> i=0
>>>> for a in l:
> ...     p=2*a
> ...     t=p+i
> ...     i=t
> ...
>>>> t
> 45
>
> Python gives an answer as 45. But i am getting 30 when i execute
> manually. Is there any different multiplication pattern in python?
> Thank yu.

My Python gives 30; methinks perhaps you've elided some important part
of your code.
Also, I note that your loop body can be significantly simplified to
just: i += 2*a

Cheers,
Chris
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