Description

Eclips4

opened on Aug 13, 2024

Issue body actions

Feature or enhancement

Proposal:

Since Python 3.12, attempting to use bitwise inversion on a bool type is raises a DeprecationWarning:

Python 3.12.4 (main, Jun  6 2024, 18:26:44) [Clang 15.0.0 (clang-1500.3.9.4)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> a = True
>>> ~a
<stdin>:1: DeprecationWarning: Bitwise inversion '~' on bool is deprecated. This returns the bitwise inversion of the underlying int object and is usually not what you expect from negating a bool. Use the 'not' operator for boolean negation or ~int(x) if you really want the bitwise inversion of the underlying int.
-2
>>>

I have a PR ready.

Has this already been discussed elsewhere?

No response given

Links to previous discussion of this feature:

No response

Linked PRs

• gh-122982: Prohibit bitwise inversion on bool type #122983
• gh-122982: Extend the deprecation period for bool inversion by two years #123306
• [3.13] gh-122982: Extend the deprecation period for bool inversion by two years (GH-123306) #123316
• [3.12] gh-122982: Extend the deprecation period for bool inversion by two years (GH-123306) #123317

Activity

1. Eclips4

   added

   type-featureA feature request or enhancementA feature request or enhancement

   interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

   on Aug 13, 2024
2. Eclips4

   self-assigned this

   on Aug 13, 2024
3. encukou commented on Aug 14, 2024

   

   encukou

   on Aug 14, 2024

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   It's deprecated, but why should it be removed now?

   Reacted by Shantanu, Jean Abou Samra and Diego Garcia
4. encukou commented on Aug 14, 2024

   

   encukou

   on Aug 14, 2024

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   Oh, I see the plan to remove it in 3.14 is in the docs, but not all the places it should be :(
5. hauntsaninja commented on Aug 24, 2024

   

   hauntsaninja

   on Aug 24, 2024

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   I think the removal might affect a number of users (e.g. see comments on #103487); I'd vote for extending the deprecation period beyond the 2 year minimum
6. Eclips4 commented on Aug 25, 2024

   

   Eclips4

   on Aug 25, 2024

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   I think the removal might affect a number of users (e.g. see comments on #103487); I'd vote for extending the deprecation period beyond the 2 year minimum

   I've read these comments and I agree with your opinion. I'll close the PR and open a new one to properly document the deprecation.
7. serhiy-storchaka commented on Aug 25, 2024

   

   serhiy-storchaka

   on Aug 25, 2024

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   It is not necessary to close the PR. It can simply be postponed for few years.

   Reacted by Kristian Thy
8. picnixz

   changed the title [-]Prohibit bitwise inversion on ``bool`` type[/-] [+]Extend deprecation warning for bitwise inversion on ``bool`` type[/+] on Aug 25, 2024
9. picnixz

   changed the title [-]Extend deprecation warning for bitwise inversion on ``bool`` type[/-] [+]Extend deprecation warning period for bitwise inversion on ``bool`` type[/+] on Aug 25, 2024
10. picnixz commented on Aug 25, 2024

    

    picnixz

    on Aug 25, 2024

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    I've changed the title of the issue to highlight the fact that we are not removing it for now. We will change it later when we'll eventually remove it (just for tracking purposes)

    Reacted by Kirill Podoprigora
11. hauntsaninja

    added a commit that references this issue on Aug 25, 2024

    gh-122982: Extend the deprecation period for bool inversion by two ye…

    249b083
12. miss-islington

    added 2 commits that reference this issue on Aug 25, 2024

    pythongh-122982: Extend the deprecation period for bool inversion by …

    66ea0fa

    pythongh-122982: Extend the deprecation period for bool inversion by …

    ac0ec0b
13. hauntsaninja

    added 2 commits that reference this issue on Aug 25, 2024

    [3.12] gh-122982: Extend the deprecation period for bool inversion by…

    93d4a19

    [3.13] gh-122982: Extend the deprecation period for bool inversion by…

    abaaaff
14. nineteendo commented on Sep 26, 2024

    

    nineteendo

    on Sep 26, 2024

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    Can't this be closed now?
15. picnixz commented on Sep 26, 2024

    

    picnixz

    on Sep 26, 2024

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    Mmmh. Yes. We'll open another issue if we want to really deprecate the behaviour.
16. picnixz

    closed this as completedon Sep 26, 2024

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