Hello, Terry Reedy wrote: > > In a few more words: Currently, an object can be subscripted by a few > > elements, separated by commas. It is evaluated as if the object was > > subscripted by a tuple containing those elements. > > It is not 'as if'. 'a,b' *is* a tuple and the object *is* subcripted by a > tuple. > Adding () around the non-empty tuple adds nothing except a bit of noise. >
It doesn't necessarily matter, but technically, it is not "a tuple". The "1, 2" in "x[1, 2]" isn't evaluated according to the same rules as in "x = 1, 2" - for example, you can have "x[1, 2:3:4, ..., 5]", which isn't a legal tuple outside of square braces - in fact, it even isn't legal inside parens: "x[(1, 2:3:4, ..., 5)]" isn't legal syntax. Noam -- http://mail.python.org/mailman/listinfo/python-list
