[Python-3000] sets in P3K?

[Greg Ewing]

Barry Warsaw wrote:

> Well here's another nutty idea.  We actually have two ways to create
> literal tuples, right?

An even nuttier idea: don't use {} at all for sets,
use backquotes instead. No inconsistency for empty
sets would be required then.

   set3 = `1, 2, 3`
   set1 = `1`
   set0 = ``

Slightly less nutty idea: use {} but introduce
a new reserved word 'phi' for constructing an
empty set.

   set3 = {1, 2, 3}
   set1 = {1}
   set0 = phi

--
Greg