Sometimes I want to compare a "pointer" to more then one others. The "in" operator would be handy, but it uses the "==" operator instead of the "is" operator. So a "is in" operator would be nice. Though I don't know how easy it is for a newbie to see what does what. # This: if x is in (a, b, c): ... # would be equivalent to this: if x is a or x is b or x is c: ... # And of course there should be a "is not in" operator, too: if x is not in (a, b, c): ... # this would be equivalent to tis: if x is not a and x is not b and x is not c: ... Hmmm, maybe a way to apply some kind of comparison between a value and more other values would be better. But that already exists, so screw this msg: if any(x is y for y in (a, b, c)): ... if all(x is not y for y in (a, b, c)): ...