[Tutor] Converting string or list to sum

[Iain]

Thanks,

 I think I can put two ideas together to solve it for lists :
 >>> a=[2, 3, '+', 4]
 >>> d=""
 >>> for item in range(len(a)):

 ...     d=d+str(a[item])
 ...

 >>> d
 '23+4'

 >>> eval(d)
 27

 I didn't realise eval did that - very handy.

 Iain.

> On Thursday 29 January 2004 19:47, orbitz at ezabel.com wrote:
> > The easiest way out is probably to use eval.
> >
> > >>> eval('2+1')
> >
> > 3
> >
> >
> > if you have a list, however, you will just create a list using that.
> >
> >
> > On Thu, 29 Jan 2004 19:14:23 +0000
> >
> > Iain <python at cairnlin.co.uk> wrote:
> > > If I have a sum as a string (e.g. '2+3') or in a list (e.g. [2,'+',3]),
> > > how can I get the result of the sum?
> > >
> > > Thanks
> > >
> > > Iain.
> > >
> > >
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