Re: How to modify every element in a list all at once

for s in s2:
   s.price *= .9

--Ned.

Greg wrote:
> Hello,
> I have the following list:
>
> [<Choice: (<Size: Extra Small>, <Price:
142>)>, <Choice: (<Size:
> Small'>, <Price: 345>)>, <Choice:
(<Size: Medium'>, <Price: 913>)>,
> <Choice: (<Size: Large>, <Price:
1214>)>, <Choice: (<Size: Largest'>,
> <Price: 1447>)>]
>
> In my view I want to be able to modify the Price of
each element.  I
> want to times the price of each element by .9.  Here is
my code that
> creates the above list:
>
> s2 = b.sandp.order_by('orderdisplay')
>
> I know that I can do 's2[0].price * .9'.  However, that
just modifies
> the first element.  Is there anyway that I can do this 
for every
> element all at once?
>
> Thanks
>
>
>
>
> >
>
>   

-- 
Ned Batchelder, http://nedbatchelder.com


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Ned,
I've added that code into my view.  However, now I'm getting
the
following error:

TypeError at /manu/coll/style/
unsupported operand type(s) for *=: 'Price' and 'float'

////////////////

I can't do a int(s.price), because then I get a 'Can't
assign to
function call' error.



On Dec 15, 9:12 pm, Ned Batchelder <n...nedbatchelder.com> wrote:
> for s in s2:
>    s.price *= .9
>
> --Ned.
>
>
>
> Greg wrote:
> > Hello,
> > I have the following list:
>
> > [<Choice: (<Size: Extra Small>,
<Price: 142>)>, <Choice: (<Size:
> > Small'>, <Price: 345>)>, <Choice:
(<Size: Medium'>, <Price: 913>)>,
> > <Choice: (<Size: Large>, <Price:
1214>)>, <Choice: (<Size: Largest'>,
> > <Price: 1447>)>]
>
> > In my view I want to be able to modify the Price
of each element.  I
> > want to times the price of each element by .9. 
Here is my code that
> > creates the above list:
>
> > s2 = b.sandp.order_by('orderdisplay')
>
> > I know that I can do 's2[0].price * .9'.  However,
that just modifies
> > the first element.  Is there anyway that I can do
this  for every
> > element all at once?
>
> > Thanks
>
> --
> Ned Batchelder,http://nedbatchelder.com

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