List to STR to List

[Larry]

"Alex Martelli" <aleax at aleax.it> wrote in message
news:2glY8.79177$vm5.2885629 at news2.tin.it...
> Larry wrote:
>
> > I can convert a list to a string as follows:
> >
> > List1 = [1,2,3]
> > String1 = str(L1)
> >
> > Is there now a way to convert my String1 variable back into a list???
>
> There are several ways, but probably the most reasonable one is:
>
> import rexec
>
> alist = rexec.RExec().r_eval(String1)
>
>
> All those 'r' stand for Restricted -- you want Restricted
> execution (evaluation, in this case) to make sure no disaster
> can happen, just in case the string may have been hacked
> by some clever fellow.
>
> If you must perform many such evaluations, it's speedier to:
>
>
> import rexec
>
> rr = rexec.RExec()
>
> alist1 = rr.r_eval(String1)
> alist2 = rr.r_eval(String2)
> alist3 = rr.r_eval(String3)
>

Thank you so much for the speedy response!

Larry