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

[Erik Max Francis]

Fredrik Lundh wrote:

> (Python docs tend to use "true" to mean anything which isn't "false",
> and
> where operator.truth returns the right thing.  this won't change
> post-PEP
> -- if you start interpreting "return true" as "return True", you'll be
> asking
> for trouble)

But these functions return Boolean values but do not guarantee that they
will be 0 or 1, just something which evaluates as the appropriate truth
value.  So the 0 and 1 is not "more than just a convention"; even
standard libraries don't guarantee their usage.

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