Python Type System: An idea for unification

Paul Prescod paul at
Sat Aug 28 12:39:15 CEST 1999

John (Max) Skaller wrote:
=> One of the things that is often requested for python is that
> builtin types be class instances. Viper does _not_ do this:
> AFAICS it is theoretically impossible (and  less useful than
> the technique described below).

Could you please describe why this is theoretically impossible? Thanks,

 Paul Prescod

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