Duncan Booth wrote: > Peter Mott wrote: > > >>But it is still true that [[]] + [[]] is not the same as [[]] * 2. In my >>usage anyway this means that "S+S is the same as S*2" is false. Because >>there are Python expressions for which it is falsfied. >> >>The problem I have is pretty philosophical I admit, but I don't think >>you do it justice. It's really about identity. > > > So would you expect: > > random.seed(0) > random.random() + random.random() > > and: > > random.seed(0) > random.random() * 2 > > to be the same? The first call to random() in each case returns the same > result, but even though the source text is identical the second call > in the addition returns something different. It is just the same with the > lists.
I don't see that this bears on what I said at all. Peter -- http://mail.python.org/mailman/listinfo/python-list
