Custom exceptions -- inherit from exceptions.Exception?

[Martin v. Löwis]

pwmiller1 at adelphia.net (Paul Miller) writes:

> where NotEnoughPlayers is really just an empty classic class suitable
> for raising.  Is there any benefit to importing exceptions and
> inheriting from exceptions.Exception, other than maybe theoretical
> purity?

The idea is that, eventually, you can replace

except:

with

except Exception:

with the additional advantage of being able to write

except Exception,e:

Python does not yet enforce exception to inherit from Exception,
but it might some day, at which point you don't have to change
your code.

Regards,
Martin