Guido> Anybody got a reason why -X should stay?
You already said that.
Guido> (The next step would be to outlaw raise with a string Guido> argument; I think I can't make that for 1.6. But it would Guido> be a good idea to scan the standard library for string Guido> exceptions and convert all of them.)
Or require that exception classes be derived from exceptions.Exception :)
That's hard to require. But it could easily be a requirement checked by one of the hypothetical typecheckers that are being discussed in the types-sig.
--Guido van Rossum (home page: http://www.python.org/%7Eguido/)