Skip to content

Protocols can't inherit from AsyncIterator #126699

Closed
Closed
Protocols can't inherit from AsyncIterator#126699
Labels
stdlibStandard Library Python modules in the Lib/ directorytopic-typingtype-bugAn unexpected behavior, bug, or error

Description

@tungol
tungol
opened on Nov 11, 2024

Bug report

Bug description:

AsyncIterator was removed from _PROTO_ALLOWLIST by #15647, without any discussion. It looks like an accident to me.

from typing import AsyncIterator, Protocol
class MyProto(AsyncIterator, Protocol): ...

result:

TypeError: Protocols can only inherit from other protocols, got <class 'collections.abc.AsyncIterator'>

CPython versions tested on:

3.12

Operating systems tested on:

macOS

Linked PRs

Activity

  1. tungol
    added
    type-bugAn unexpected behavior, bug, or error
    on Nov 11, 2024
  2. AlexWaygood
    added
    topic-typing
    on Nov 11, 2024
  3. AlexWaygood
    added a commit that references this issue on Nov 12, 2024

    gh-126699: allow AsyncIterator to be used as a base for Protocols (#1…

    feb3e0b
  4. miss-islington
    added 2 commits that reference this issue on Nov 12, 2024

    pythongh-126699: allow AsyncIterator to be used as a base for Protoco…

    a38877b

    pythongh-126699: allow AsyncIterator to be used as a base for Protoco…

    0e45a7a
  5. Yhg1s
    added 2 commits that reference this issue on Dec 2, 2024

    [3.13] gh-126699: allow AsyncIterator to be used as a base for Protoc…

    a5672be

    [3.12] gh-126699: allow AsyncIterator to be used as a base for Protoc…

    34137cb
  6. tungol
    closed this as completedon Dec 8, 2024
  7. picnixz
    added
    stdlibStandard Library Python modules in the Lib/ directory
    on Dec 8, 2024
  8. picnixz
    added a commit that references this issue on Dec 8, 2024

    pythongh-126699: allow AsyncIterator to be used as a base for Protoco…

    28fb3b0
  9. ebonnal
    added a commit that references this issue on Jan 12, 2025

    pythongh-126699: allow AsyncIterator to be used as a base for Protoco…

    6728b40
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    stdlibStandard Library Python modules in the Lib/ directorytopic-typingtype-bugAn unexpected behavior, bug, or error

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions