Description

JelleZijlstra

opened on Apr 24, 2023

Issue body actions

We should implement PEP-695. Some discussion of the implementation is at https://github.com/erictraut/cpython/issues. I will open a draft PR momentarily.

TODO:

• Evaluate TypeAlias values
• Lazy evaluation for TypeVar bounds
• More tests
• Fix remaining tests in test_typing.py

Linked PRs

• gh-103763: Implement PEP 695 #103764

Reacted by Kirill Podoprigora, Carl Meyer, sunmy2019 and Enderchief

Reacted by Kirill Podoprigora, Alex Prengère and Enderchief

Activity

1. JelleZijlstra

   added

   type-featureA feature request or enhancementA feature request or enhancement

   on Apr 24, 2023
2. JelleZijlstra

   self-assigned this

   on Apr 24, 2023
3. preveen-stack commented on Apr 24, 2023

   

   preveen-stack

   on Apr 24, 2023

   More actions

   PEP 695 – Type Parameter Syntax
4. AlexWaygood

   added

   topic-typing

   on Apr 24, 2023
5. sunmy2019 commented on Apr 24, 2023

   

   sunmy2019

   on Apr 24, 2023

   Member

   More actions

   Wow. This syntax looks so cool. It reminds me of many generic expressions in other languages, such as C++ and Rust. (while the increases the learning curve of Python)

   I'll see what I can help here.
6. preveen-stack commented on Apr 25, 2023

   

   preveen-stack

   on Apr 25, 2023

   More actions

   I feel we should defend the intuitive readability of python irrespective of what.
7. JelleZijlstra

   added a commit that references this issue on May 16, 2023

   gh-103763: Implement PEP 695 (#103764)

   24d8b88
8. JelleZijlstra commented on May 16, 2023

   

   JelleZijlstra

   on May 16, 2023

   MemberAuthor

   More actions

   The implementation is done. The next step is #103921, the documentation.

   Reacted by Maxim Martynov
9. JelleZijlstra

   closed this as completedon May 16, 2023
10. carljm

    added a commit that references this issue on May 16, 2023

    Merge branch 'main' into supermon

    a6dd626
11. charliermarsh commented on Jun 22, 2023

    

    charliermarsh

    on Jun 22, 2023

    More actions

    @JelleZijlstra - I'm sorry if this is the wrong place to ask, but is the specification and implementation of PEP 695 sufficiently stabilized that I could look into updating Ruff's parser and semantic model to support them?
12. JelleZijlstra commented on Jun 22, 2023

    

    JelleZijlstra

    on Jun 22, 2023

    MemberAuthor

    More actions

    I don't expect more major changes, no. There are currently no open PEP 695-related bugs; if anything else changes it would be as a result of new feedback we receive during the beta phase.

    Reacted by Charlie Marsh

Issue actions