R. David Murray added the comment: Thinking about this some more my explanation isn't quite clear (because my thinking wasn't quite clear): the problem isn't that APIError isn't *capable* of being a base class; I was wrong when I said it is itself a metaclass. It is a class that has ABCMeta *as* its metaclass. The problem is what I said in the second part: that APIError isn't a base class *of DriverError*. The operant issue is that 'except' isn't doing issubclass, it is looking at the base class list of DriverError, and APIError isn't in it.
I'd have to see your 2.7 code to figure out why that version "works" :) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25448> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
