On Mon, 20 Apr 2009 15:13:15 -0500, Grant Edwards wrote:
> I fail to see the difference between "length greater than 0" and "list > is not empty". They are, by definition, the same thing, aren't they? For built-in lists, but not necessarily for arbitrary list-like sequences. There's also the performance issue. I might have a sequence-like structure where calling len() takes O(N**2) time, (say, a graph) but calling __nozero__ might be O(1). Why defeat the class designer's optimizations? -- Steven -- http://mail.python.org/mailman/listinfo/python-list