"Fredrik Lundh" <fredrik at pythonware.com> writes: > you forgot enumerate() Oh, oops. > and if you fix that, you'll notice that the output doesn't quite match > the OP's spec: > > > what I am looking for is the unique elements 0.4 and 0.9 with their > > index from the list. Oh, I see, he wanted the elements that only occur once. I misunderstood.