On Jun 16, 10:29 pm, pirata <[EMAIL PROTECTED]> wrote: > I'm a bit confusing about whether "is not" equivelent to "!=" > > if a != b: > ... > > if a is not b: > ... > > What's the difference between "is not" and "!=" or they are the same thing?
"is not" is the logical negation of the "is" operator, while "!=" is the logical negation of the "==" operator. The difference is equality versus identity. >>> a = [1, 2, 3] >>> b = [1, 2, 3] >>> a == b True >>> a is b False -- http://mail.python.org/mailman/listinfo/python-list
