[Tutor] Defining "bit" type -- why not '!' ?
alan.gauld at btinternet.com
Thu Jan 29 13:22:29 CET 2009
"spir" <denis.spir at free.fr> wrote
> Here is an overal and a trial to introduce my view on this topic.
> * The mix of "extended logic" on non-logical types and treating
> as bit sequences provakes a kind of conceptual collision.
> * As a solution, bitwise operations may apply only to a type (byte
> or int)
> on which "extended logic" raises an TypeError.
You are probably correct but it would break a ton of working code!
Especially when you recall that bool types were only introduced
relatively recently so a lot of old code relies on the fact that
True/False were until then literally 1/0.
Maybe it is "improved" in Python 3. As you say the ~ operator
makes most sense if applied to bytes only. But for compatibility
reasons I suspect they have kept it as-is...
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