Guido van Rossum: ACCEPTED: PEP 285.
This PEP proposes the introduction of a new built-in type, bool, with two constants, False and True. The bool type would be a straightforward subtype (in C) of the int type, and the values False and True would behave like 0 and 1 in most respects (for example, False==0 and True==1 would be true) except repr() and str(). All built-in operations that conceptually return a Boolean result will be changed to return False or True instead of 0 or 1; for example, comparisons, the “not” operator, and predicates like isinstance().
The boolean type will appear in Python 2.3, which is tentatively scheduled to be released this fall. I haven’t touched Dive Into Python in months, but I’ll probably touch it before this fall, and I’ll have to include a historical note about this.
