On Mon, May 17, 2010 at 8:26 AM, vsoler <vicente.soler at gmail.com> wrote: > However, can I be 100% sure that,no matter how I access variable > 'x' (with config.x or mod.config.x) it is always the same 'x'. I mean > that either reference of 'x' points to the same id(memory position)? Yes it does unless you re-assign it. --James