How to modify a string in place?

[John Powers]

I tried this variation first, and it sped up my application 39 fold.

Thanks, jpp

Andreas Jung wrote in message <19990514192812.A6239 at sz-sb.de>...
>1) convert the string to a list (lst = list(mystr)). Because lists
>  are mutable you can change the elements of the lists with the
>  known list functions.
>