Equivalent code to the bool() built-in function

[Gregory Ewing]

Chris Angelico wrote:

> Well, of course you can always implement bool as an int;

Which Python used to do once upon a time -- and still does
in a way, because bool is a subclass of int.

The bool type was added mainly to provide a type that prints
out as 'True' or 'False' rather than 1 or 0. This can be
a considerable help for debugging and keeping the conceptual
meaning of one's data clear.

-- 
Greg