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Multiple inheritence for exceptions?

Useful or a bad idea?

I have a module that defines a number of exceptions which inherit from
various built-ins like KeyError, ValueError etc. I'm considering defining
an abstract module exception like MyModuleError, and having all my real
exceptions inherit from it as well, but I don't recall seeing that done
before and I was wondering if it were a bad idea for some reason.
--
Steven.

Jun 3 '07 #1
1 1081
Steven D'Aprano <st***@REMOVE.THIS.cybersource.com.auwrote:
Useful or a bad idea?

I have a module that defines a number of exceptions which inherit from
various built-ins like KeyError, ValueError etc. I'm considering defining
an abstract module exception like MyModuleError, and having all my real
exceptions inherit from it as well, but I don't recall seeing that done
before and I was wondering if it were a bad idea for some reason.
I often do exactly what you propose, and I believe I have suggested it
in the Nutshell 2nd edition. I have never observed bad effects.
Alex
Jun 4 '07 #2

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