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Showing content from https://mail.python.org/pipermail/python-dev/2002-March/021985.html below:

[Python-Dev] PEP 285: Adding a bool type

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----- Original Message -----
From: "Andrew Koenig" <ark@research.att.com>
> Liskov substitutibility would seem to suggest deriving int from bool,
> not the other way around.  That is: If I have a program that uses bool
> values, I can change it so that it uses int values without affecting
> the behavior of the program.  The reverse is not true.

Even that won't work, because of the different repr/str behavior... one
reason I don't like the inheritance relationship.

> I wonder if this is the circle-ellipse problem over again?

square-rectangle-ly y'rs,
dave

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