[Python-Dev] For review: PEP 285: Adding a bool type (original) (raw)

Christian Tismer tismer@tismer.com
Mon, 11 Mar 2002 13:27:12 +0100

Martin v. Loewis wrote:

Greg Ewing <greg@cosc.canterbury.ac.nz> writes:

Skip Montanaro <skip@pobox.com>:

Guido's proposal is for bool to be a subclass of int. Consequently, 28 + True should yield 29 But True - 1 won't equal False. Should it? Despite that Guido said "no" here, I think the answer is "yes", and the first sentence is wrong: True - 1 == False. True - 1 won't be identical with False, but it will be equal to it.

Sigh... Having read this huge thread now in 2.5 hours, I can't say I like this stuff too much. Why allow coercion to int at all? We can use Int(False), like we can use Bool(42).

But still I think keeping Bool and Int completely disjoint types was a very well thought-out decision of Nikolas Wirth, and I wish very much that Python goes the same clean way or stays where it is!

Please let's make a true type, no compromizes, no repr issues, no arithmetic operations, absolutely unrelated and really incompatible to integer, also no < relation.

Python-looks-more-and-more-perlish-to-me - ly y'rs - chris

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