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Created on 2019-08-11 02:54 by The Blue Wizard, last changed 2022-04-11 14:59 by admin. This issue is now closed.
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| msg349372 - (view) | Author: John Rogers (The Blue Wizard) | Date: 2019-08-11 02:54 | |
In Python Language Reference (version 3.7), section 6.9 it states that the arguments of binary bitwise operators must be integers. However, the following expressions work without error:
True & False
False | True
True ^ True
Each produces a boolean result (not integer) (False, True, False, respectively). Also I find that mixing booleans and integers does work too, though this time it produces integers.
One can easily test it on Python home page's console window. I also tested it on my Linux box running version 3.5.3. So it appears that it has been overlooked for quite some time!
As an aside: I do assume that boolean values are *distinct* from integers. If they are not, then my apologies!
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| msg349373 - (view) | Author: Steven D'Aprano (steven.daprano) *  |
Date: 2019-08-11 03:43 | |
bools are integers, specifically they are a subclass of int: py> isinstance(True, int) True py> issubclass(bool, int) True so the behaviour is correct. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:19 | admin | set | github: 81999 |
| 2019-08-11 03:43:43 | steven.daprano | set | status: open -> closed nosy: + steven.daprano messages: + msg349373 resolution: not a bug stage: resolved |
| 2019-08-11 02:54:30 | The Blue Wizard | create | |