Bob Ippolito wrote: > On 5/27/07, Kris Schnee <[EMAIL PROTECTED]> wrote: >> But is there a better way to make it clear I want the value, not an >> actual reference? > > There are no values in Python, just references. Either you want an > existing reference, or a new one. If you want a new one, then copying > is usually appropriate.
I would argue that there are values, or else what do you have references to? The crucial point, though, is that assignment creates new references to old objects, and that if you want new objects, you need to copy (using deepcopy or otherwise). Fetching an object from a dict returns an old object. I'm interested in the curious use case Kris posts -- checking for object identity as part of a sea adventure? I can only imagine. :) Ethan
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