[Types-sig] Re: Type equivalence

[Paul Prescod]

It would not be inconsistent for Python's boolean-style operators to
work on multiple types and yet for Python to have a first-class boolean
type. C++ is one example of a language with this behavior. Nobody is
particularly confused by it.

One way to make it all feel object-oriented and orthogonal is to say
that __nonzero__ is a cast-to-boolean operator.

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