[Python-Dev] Exceptions *must*? be old-style classes?

[Phillip J. Eby]

At 04:06 PM 1/17/05 +0000, Michael Hudson wrote:
>a) Is Exception to be new-style?

Probably not in 2.5; Martin and others have suggested that this could 
introduce instability for users' existing exception classes.


>b) Somewhat but not entirely independently, would demanding that all
>    new-style exceptions inherit from Exception be reasonable?

Yes.  Right now you can't have a new-style exception at all, so it would be 
quite reasonable to require new ones to inherit from Exception.