Hi Steven, On 2010-08-07 00:28, Steven D'Aprano wrote: > On Fri, 06 Aug 2010 15:37:04 +0200, Stefan Schwarzer wrote: >>> Plus, I believe the >>> "==" operator will check if the variables point to the same object. >> >> No, that's what `is` is for. > > Actually, yes, equality is implemented with a short-cut that checks for > identity first. That makes something like: > [...]
Oops, I didn't realize that the OP had mentioned the identity check as an optimization in case the objects are the same. I thought he was confusing the operator with `is`. > s = "abc"*1000*1000*10 > s == s > > nice and quick, as Python can immediately recognise that a string is > always equal to itself without having to walk the entire string comparing > each character with itself. Yes, that definitely makes sense. I guess I would have implemented it this way as well. :) Stefan -- http://mail.python.org/mailman/listinfo/python-list
