typing.Annotated is not suggested for auto-import in Quick Fix menu

[reuben]

Environment data

• Pylance version: v2024.10.1
• OS and version:
  • Host: macOS Sequoia 15.1 (24B82)
  • Remote: Ubuntu 20.04.6 LTS
• Python version: 3.10.13

Code Snippet

Define an Annotated type Result:

from typing import Annotated, Generic, Literal, TypeVar

from pydantic import BaseModel, Field

T_co = TypeVar("T_co", covariant=True)
E_co = TypeVar("E_co", covariant=True)


class Success(BaseModel, Generic[T_co]):
    type: Literal["success"] = "success"
    value: T_co


class Error(BaseModel, Generic[E_co]):
    type: Literal["error"] = "error"
    error: E_co


Result = Annotated[
    Success[T_co] | Error[E_co],
    Field(discriminator="type"),
]

Repro Steps

Introduce a new usage of an Annotated type and use "Quick Fix" in VSCode.

1. In a different file write:

foo: Result[int, str] = Success(value=10)
# cursor: |

2. Use Quick Fix shortcut

Expected behavior

Import of module defining Result is suggested.

Actual behavior

Module defining Result is not suggested.

Logs

2024-10-25 16:18:54.319 [info] [Info  - 4:18:54 PM] (2069442) Server root directory: file:///home/reuben/.vscode-server/extensions/ms-python.vscode-pylance-2024.10.1/dist
2024-10-25 16:18:54.320 [info] [Info  - 4:18:54 PM] (2069442) Pylance language server 2024.10.1 (pyright version 1.1.382, commit e46efc6b) starting
2024-10-25 16:18:54.325 [info] [Info  - 4:18:54 PM] (2069442) Starting service instance "redacted"
2024-10-25 16:18:54.958 [info] [Info  - 4:18:54 PM] (2069442) Setting environmentName for service "redacted": "3.10.13 (next-vavphVWf venv)"
2024-10-25 16:18:54.975 [info] [Info  - 4:18:54 PM] (2069442) Setting pythonPath for service "redacted": "/home/reuben/.local/share/virtualenvs/next-vavphVWf/bin/python"
2024-10-25 16:18:54.976 [info] [Info  - 4:18:54 PM] (2069442) No include entries specified; assuming /home/reuben/dev/redacted
2024-10-25 16:18:54.982 [info] [Info  - 4:18:54 PM] (2069442) Auto-excluding **/node_modules
2024-10-25 16:18:54.982 [info] [Info  - 4:18:54 PM] (2069442) Auto-excluding **/__pycache__
2024-10-25 16:18:55.003 [info] [Info  - 4:18:55 PM] (2069442) Auto-excluding **/.*
2024-10-25 16:18:55.025 [info] [Info  - 4:18:55 PM] (2069442) Assuming Python version 3.10.13.final.0
2024-10-25 16:18:55.296 [info] [Info  - 4:18:55 PM] (2069442) Found 1047 source files
2024-10-25 16:18:55.705 [info] [Info  - 4:18:55 PM] (2069442) Background analysis(1) root directory: file:///home/reuben/.vscode-server/extensions/ms-python.vscode-pylance-2024.10.1/dist
2024-10-25 16:18:55.705 [info] [Info  - 4:18:55 PM] (2069442) Background analysis(1) started
2024-10-25 16:18:55.706 [info] [Info  - 4:18:55 PM] (2069442) Indexer background runner(2) root directory: file:///home/reuben/.vscode-server/extensions/ms-python.vscode-pylance-2024.10.1/dist (index)
2024-10-25 16:18:55.706 [info] [Info  - 4:18:55 PM] (2069442) Indexing(2) started
2024-10-25 16:18:56.156 [info] [Info  - 4:18:56 PM] (2069442) scanned(2) 544 files over 1 exec env
2024-10-25 16:18:56.429 [info] [Info  - 4:18:56 PM] (2069442) indexed(2) 544 files over 1 exec env
2024-10-25 16:18:56.552 [info] [Info  - 4:18:56 PM] (2069442) Indexing finished(2).
2024-10-25 16:19:01.116 [info] [Info  - 4:19:01 PM] (2069442) Starting service instance "<default>"
2024-10-25 16:19:01.131 [info] [Info  - 4:19:01 PM] (2069442) Setting environmentName for service "<default>": "3.10.13 (next-vavphVWf venv)"
2024-10-25 16:19:01.131 [info] [Info  - 4:19:01 PM] (2069442) Setting pythonPath for service "<default>": "/home/reuben/.local/share/virtualenvs/next-vavphVWf/bin/python"
2024-10-25 16:19:01.131 [info] [Info  - 4:19:01 PM] (2069442) No include entries specified; assuming /<default workspace root>
2024-10-25 16:19:01.131 [info] [Info  - 4:19:01 PM] (2069442) Auto-excluding **/node_modules
2024-10-25 16:19:01.131 [info] [Info  - 4:19:01 PM] (2069442) Auto-excluding **/__pycache__
2024-10-25 16:19:01.131 [info] [Info  - 4:19:01 PM] (2069442) Auto-excluding **/.*
2024-10-25 16:19:01.162 [info] [Info  - 4:19:01 PM] (2069442) Assuming Python version 3.10.13.final.0
2024-10-25 16:19:01.221 [info] [Error - 4:19:01 PM] (2069442) File or directory "/<default workspace root>" does not exist.
2024-10-25 16:19:01.221 [info] [Info  - 4:19:01 PM] (2069442) No source files found.
2024-10-25 16:19:01.225 [info] [Info  - 4:19:01 PM] (2069442) [id_0] Logging started
2024-10-25 16:19:01.440 [info] [Info  - 4:19:01 PM] (2069442) Found 1047 source files
2024-10-25 16:19:01.516 [info] [Error - 4:19:01 PM] (2069442) File or directory "/<default workspace root>" does not exist.
2024-10-25 16:19:01.516 [info] [Info  - 4:19:01 PM] (2069442) No source files found.
2024-10-25 16:19:01.520 [info] [Info  - 4:19:01 PM] (2069442) Background analysis(3) root directory: file:///home/reuben/.vscode-server/extensions/ms-python.vscode-pylance-2024.10.1/dist
2024-10-25 16:19:01.520 [info] [Info  - 4:19:01 PM] (2069442) Background analysis(3) started
2024-10-25 16:19:04.436 [info] (Client) The existing extension didn't exit within 10 seconds. New instance will start, but you might encounter issues.
2024-10-25 16:19:04.436 [info] (Client) Pylance async client (2024.10.1) started with python extension (2024.16.1)
2024-10-25 16:19:14.616 [info] [Info  - 4:19:14 PM] (2069442) [id_0] Logging stopped at /tmp/pyright-2069442-JlwFjC36EsjZ/pylance_2024.10.1_id_0.txt

[KacieKK]

Thanks for reporting, I can reproduce