On 2006-09-21, Fijoy George <[EMAIL PROTECTED]> wrote: > Hi all, > > I am a bit perplexed by the following behaviour of the 'is' comparator > >>>> x = 2. >>>> x is 2. > False >>>> y = [2., 2.] >>>> y[0] is y[1] > True > > My understanding was that every literal is a constructure of an object. > Thus, the '2.' in 'x = 2.' and the '2.' in 'x is 2.' are different objects. > Therefore, the comparison yields false. > > But my understanding does not explain the result of the second comparison. > According to the experiment, y[0] and y[1] are the same object!
I'm as baffled as you, even more so its implication: >>> a = 2. >>> b = 2. >>> a is b False >>> a, b = 2., 2. >>> a is b True -- http://mail.python.org/mailman/listinfo/python-list
