June 9, 2003
7:07 p.m.
Guido van Rossum writes:
Python usually doesn't care about isinstance relationships but cares about whether the needed protocol is implemented, and this suggests that requiring exceptions to subclass Exception is unPythonic.
Definiately!
But at other times, the desire to catch bogus arguments to raise suggests that the subclass requirement might be just fine, and I don't have a use case that breaks with this requirement (since you can always use multiple inheritance to make a desirable class raisable).
Yeah, but that's really annoying. -Fred -- Fred L. Drake, Jr. <fdrake at acm.org> PythonLabs at Zope Corporation