On Nov 25, 2005, at 2:25 PM, Patrick Gerken wrote:
2005/11/24, Chris Withers <chris@simplistix.co.uk>:
Interestingly, you can raise things that don't subclass Exception in python. This was discussed before, and I firmly agree with, that zodb conflicts should _not_ sublcass exception. That way, there's less chance of them being caught by inexperienced programmers putting in try: except Exception: 's.
How would we go about making this change?
class my_own_exception: pass
try: raise my_own_exception() except: print "Doesn't help against inexperienced programmers. sadly"
You can even raise a string, which is accidently done in zope2 and where my with provided solution and unit test is pending. It is better to beat people using except: without good reasons.
Yup. Lots of talk has been going on on python-dev about putting exceptions into multiple hierarchies lately, which would solve the problem at the right level. - C