[Python-3000] Cleaning up argument list parsing (was Re: More wishful thinking)

[Greg Ewing]

Guido van Rossum wrote:

> If we did end up allowing multiple **kwds, the code implementing calls
> should check that they don't overlap with each other or with other
> keyword args or with named positional args,

An alternative might be to add a + operator to dicts
which disallowed overlaps. That could be useful in
other contexts as well.

--
Greg