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Pylance seemingly smarter than pyright about literal values. #6153

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fau-st opened this issue Jul 16, 2024 · 2 comments
Closed

Pylance seemingly smarter than pyright about literal values. #6153

fau-st opened this issue Jul 16, 2024 · 2 comments
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@bschnurr
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fixed in next version (pyright) A fix has been implemented and will appear in an upcoming version

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@fau-st
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fau-st commented Jul 16, 2024

Environment data

  • Pylance version: v2024.7.1
  • OS and version: Ubuntu 20.04
  • Python version: 3.12.0 (from pyenv)

Code Snippet

from enum import Enum
from typing import Literal, TypeAlias, Union, reveal_type


class SomeEnum(Enum):
    ENUM_VALUE = "VALUE"

_ENUM_VALUE = SomeEnum.ENUM_VALUE

MyTypeAlias: TypeAlias = Union[Literal[_ENUM_VALUE], None]


class SomeClass:
    member: MyTypeAlias

reveal_type(SomeClass.member)

Repro Steps

  1. Use pylance in VSCode to check the snippet.
  2. Do the same with pyright (Playground )

Expected behavior

Both tools report the same issues.

Actual behavior

pylance doesn't report an issue but pyright does.
I tried to follow USING_WITH_PYRIGHT.md but I can't seem to find what's the difference between the tools.

Revealed type is "Literal[SomeEnum.ENUM_VALUE] | None" for pylance but "Unknown | None" for pyright (plus the reportInvalidTypeForm error).

It looks like pylance is able to infer that _ENUM_VALUE is a litteral value.

Logs

Trace logging 
2024-07-16 16:00:08.755 [info] (Client) Pylance async client (2024.7.1) started with python extension (2024.10.0)
2024-07-16 16:00:09.120 [info] [Info  - 4:00:09 PM] (1616284) Pylance language server 2024.7.1 (pyright version 1.1.369, commit 1168be71) starting
2024-07-16 16:00:09.120 [info] [Info  - 4:00:09 PM] (1616284) Server root directory: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist
2024-07-16 16:00:09.124 [info] [Info  - 4:00:09 PM] (1616284) Starting service instance "pyright_bug"
2024-07-16 16:00:09.147 [info] [Info  - 4:00:09 PM] (1616284) Setting pythonPath for service "pyright_bug": "/local/home/fau-st/.pyenv/versions/3.12.0/bin/python"
2024-07-16 16:00:09.147 [info] [Info  - 4:00:09 PM] (1616284) Setting environmentName for service "pyright_bug": "3.12.0 (global)"
2024-07-16 16:00:09.147 [info] [Info  - 4:00:09 PM] (1616284) No include entries specified; assuming /local/home/fau-st/temp/pyright_bug
2024-07-16 16:00:09.148 [info] [Info  - 4:00:09 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 16:00:09.148 [info] [Info  - 4:00:09 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 16:00:09.148 [info] [Info  - 4:00:09 PM] (1616284) Auto-excluding **/.*
2024-07-16 16:00:09.166 [info] [Info  - 4:00:09 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 16:00:09.203 [info] [Info  - 4:00:09 PM] (1616284) No source files found.
2024-07-16 16:00:09.538 [info] [Info  - 4:00:09 PM] (1616284) Background analysis(1) root directory: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist
2024-07-16 16:00:09.540 [info] [Info  - 4:00:09 PM] (1616284) Background analysis(1) started
2024-07-16 16:00:09.594 [info] [Info  - 4:00:09 PM] (1616284) Indexer background runner(2) root directory: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist (index)
2024-07-16 16:00:09.594 [info] [Info  - 4:00:09 PM] (1616284) Indexing(2) started
2024-07-16 16:00:09.838 [info] [Info  - 4:00:09 PM] (1616284) scanned(2) 13 files over 1 exec env
2024-07-16 16:00:10.014 [info] [Info  - 4:00:10 PM] (1616284) indexed(2) 3 files over 1 exec env
2024-07-16 16:00:10.022 [info] [Info  - 4:00:10 PM] (1616284) Indexing finished(2).
2024-07-16 16:00:22.731 [info] [Info  - 4:00:22 PM] (1616284) Found 1 source file
2024-07-16 16:01:16.499 [info] [Info  - 4:01:16 PM] (1616284) Starting service instance "<default>"
2024-07-16 16:01:16.516 [info] [Info  - 4:01:16 PM] (1616284) Setting pythonPath for service "<default>": "/local/home/fau-st/.pyenv/versions/3.12.0/bin/python"
2024-07-16 16:01:16.516 [info] [Info  - 4:01:16 PM] (1616284) Setting environmentName for service "<default>": "3.12.0 (global)"
2024-07-16 16:01:16.516 [info] [Info  - 4:01:16 PM] (1616284) No include entries specified; assuming /<default workspace root>
2024-07-16 16:01:16.516 [info] [Info  - 4:01:16 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 16:01:16.516 [info] [Info  - 4:01:16 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 16:01:16.516 [info] [Info  - 4:01:16 PM] (1616284) Auto-excluding **/.*
2024-07-16 16:01:16.533 [info] [Info  - 4:01:16 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 16:01:16.561 [info] [Error - 4:01:16 PM] (1616284) File or directory "/<default workspace root>" does not exist.
2024-07-16 16:01:16.561 [info] [Info  - 4:01:16 PM] (1616284) No source files found.
2024-07-16 16:01:16.835 [info] [Info  - 4:01:16 PM] (1616284) Background analysis(3) root directory: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist
2024-07-16 16:01:16.837 [info] [Info  - 4:01:16 PM] (1616284) Background analysis(3) started
2024-07-16 16:48:25.170 [info] [Info  - 4:48:25 PM] (1616284) Setting pythonPath for service "pyright_bug": "/local/home/fau-st/.pyenv/versions/3.12.0/bin/python"
2024-07-16 16:48:25.171 [info] [Info  - 4:48:25 PM] (1616284) Setting environmentName for service "pyright_bug": "3.12.0 (global)"
2024-07-16 16:48:25.172 [info] [Info  - 4:48:25 PM] (1616284) Loading pyproject.toml file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 16:48:25.178 [info] [Info  - 4:48:25 PM] (1616284) Pyproject file "/local/home/fau-st/temp/pyright_bug/pyproject.toml" has no "[tool.pyright]" section.
2024-07-16 16:48:25.178 [info] [Info  - 4:48:25 PM] (1616284) No include entries specified; assuming /local/home/fau-st/temp/pyright_bug
2024-07-16 16:48:25.178 [info] [Info  - 4:48:25 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 16:48:25.178 [info] [Info  - 4:48:25 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 16:48:25.178 [info] [Info  - 4:48:25 PM] (1616284) Auto-excluding **/.*
2024-07-16 16:48:25.185 [info] [Info  - 4:48:25 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 16:48:25.229 [info] [Info  - 4:48:25 PM] (1616284) Found 1 source file
2024-07-16 16:48:25.270 [info] [Info  - 4:48:25 PM] (1616284) Setting pythonPath for service "<default>": "/local/home/fau-st/.pyenv/versions/3.12.0/bin/python"
2024-07-16 16:48:25.270 [info] [Info  - 4:48:25 PM] (1616284) Setting environmentName for service "<default>": "3.12.0 (global)"
2024-07-16 16:48:25.270 [info] [Info  - 4:48:25 PM] (1616284) No include entries specified; assuming /<default workspace root>
2024-07-16 16:48:25.270 [info] [Info  - 4:48:25 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 16:48:25.270 [info] [Info  - 4:48:25 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 16:48:25.270 [info] [Info  - 4:48:25 PM] (1616284) Auto-excluding **/.*
2024-07-16 16:48:25.292 [info] [Info  - 4:48:25 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 16:48:25.333 [info] [Error - 4:48:25 PM] (1616284) File or directory "/<default workspace root>" does not exist.
2024-07-16 16:48:25.333 [info] [Info  - 4:48:25 PM] (1616284) No source files found.
2024-07-16 16:48:25.727 [info] [Info  - 4:48:25 PM] (1616284) Indexer background runner(4) root directory: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist (index)
2024-07-16 16:48:25.727 [info] [Info  - 4:48:25 PM] (1616284) Indexing(4) started
2024-07-16 16:48:25.938 [info] [Info  - 4:48:25 PM] (1616284) scanned(4) 13 files over 1 exec env
2024-07-16 16:48:26.231 [info] [Info  - 4:48:26 PM] (1616284) indexed(4) 3 files over 1 exec env
2024-07-16 16:48:26.246 [info] [Info  - 4:48:26 PM] (1616284) Indexing finished(4).
2024-07-16 16:48:33.220 [info] [Info  - 4:48:33 PM] (1616284) Setting pythonPath for service "pyright_bug": "/local/home/fau-st/.pyenv/versions/3.12.0/bin/python"
2024-07-16 16:48:33.220 [info] [Info  - 4:48:33 PM] (1616284) Setting environmentName for service "pyright_bug": "3.12.0 (global)"
2024-07-16 16:48:33.220 [info] [Info  - 4:48:33 PM] (1616284) Loading pyproject.toml file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 16:48:33.220 [info] [Info  - 4:48:33 PM] (1616284) Pyproject file "/local/home/fau-st/temp/pyright_bug/pyproject.toml" has no "[tool.pyright]" section.
2024-07-16 16:48:33.220 [info] [Info  - 4:48:33 PM] (1616284) No include entries specified; assuming /local/home/fau-st/temp/pyright_bug
2024-07-16 16:48:33.220 [info] [Info  - 4:48:33 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 16:48:33.220 [info] [Info  - 4:48:33 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 16:48:33.220 [info] [Info  - 4:48:33 PM] (1616284) Auto-excluding **/.*
2024-07-16 16:48:33.246 [info] [Info  - 4:48:33 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 16:48:33.284 [info] [Info  - 4:48:33 PM] (1616284) Found 1 source file
2024-07-16 16:48:33.327 [info] [Info  - 4:48:33 PM] (1616284) Setting pythonPath for service "<default>": "/local/home/fau-st/.pyenv/versions/3.12.0/bin/python"
2024-07-16 16:48:33.328 [info] [Info  - 4:48:33 PM] (1616284) Setting environmentName for service "<default>": "3.12.0 (global)"
2024-07-16 16:48:33.328 [info] [Info  - 4:48:33 PM] (1616284) No include entries specified; assuming /<default workspace root>
2024-07-16 16:48:33.328 [info] [Info  - 4:48:33 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 16:48:33.328 [info] [Info  - 4:48:33 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 16:48:33.328 [info] [Info  - 4:48:33 PM] (1616284) Auto-excluding **/.*
2024-07-16 16:48:33.356 [info] [Info  - 4:48:33 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 16:48:33.395 [info] [Error - 4:48:33 PM] (1616284) File or directory "/<default workspace root>" does not exist.
2024-07-16 16:48:33.396 [info] [Info  - 4:48:33 PM] (1616284) No source files found.
2024-07-16 16:48:33.799 [info] [Info  - 4:48:33 PM] (1616284) Indexer background runner(5) root directory: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist (index)
2024-07-16 16:48:33.799 [info] [Info  - 4:48:33 PM] (1616284) Indexing(5) started
2024-07-16 16:48:34.102 [info] [Info  - 4:48:34 PM] (1616284) scanned(5) 13 files over 1 exec env
2024-07-16 16:48:34.266 [info] [Info  - 4:48:34 PM] (1616284) indexed(5) 3 files over 1 exec env
2024-07-16 16:48:34.279 [info] [Info  - 4:48:34 PM] (1616284) Indexing finished(5).
2024-07-16 16:48:55.166 [info] [Info  - 4:48:55 PM] (1616284) Setting pythonPath for service "pyright_bug": "/local/home/fau-st/.pyenv/versions/3.12.0/bin/python"
2024-07-16 16:48:55.166 [info] [Info  - 4:48:55 PM] (1616284) Setting environmentName for service "pyright_bug": "3.12.0 (global)"
2024-07-16 16:48:55.166 [info] [Info  - 4:48:55 PM] (1616284) Loading pyproject.toml file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 16:48:55.166 [info] [Info  - 4:48:55 PM] (1616284) Pyproject file "/local/home/fau-st/temp/pyright_bug/pyproject.toml" has no "[tool.pyright]" section.
2024-07-16 16:48:55.166 [info] [Info  - 4:48:55 PM] (1616284) No include entries specified; assuming /local/home/fau-st/temp/pyright_bug
2024-07-16 16:48:55.166 [info] [Info  - 4:48:55 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 16:48:55.166 [info] [Info  - 4:48:55 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 16:48:55.166 [info] [Info  - 4:48:55 PM] (1616284) Auto-excluding **/.*
2024-07-16 16:48:55.190 [info] [Info  - 4:48:55 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 16:48:55.234 [info] [Info  - 4:48:55 PM] (1616284) Found 1 source file
2024-07-16 16:48:55.264 [info] [Info  - 4:48:55 PM] (1616284) Setting pythonPath for service "<default>": "/local/home/fau-st/.pyenv/versions/3.12.0/bin/python"
2024-07-16 16:48:55.265 [info] [Info  - 4:48:55 PM] (1616284) Setting environmentName for service "<default>": "3.12.0 (global)"
2024-07-16 16:48:55.265 [info] [Info  - 4:48:55 PM] (1616284) No include entries specified; assuming /<default workspace root>
2024-07-16 16:48:55.265 [info] [Info  - 4:48:55 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 16:48:55.265 [info] [Info  - 4:48:55 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 16:48:55.265 [info] [Info  - 4:48:55 PM] (1616284) Auto-excluding **/.*
2024-07-16 16:48:55.287 [info] [Info  - 4:48:55 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 16:48:55.331 [info] [Error - 4:48:55 PM] (1616284) File or directory "/<default workspace root>" does not exist.
2024-07-16 16:48:55.331 [info] [Info  - 4:48:55 PM] (1616284) No source files found.
2024-07-16 16:48:55.794 [info] [Info  - 4:48:55 PM] (1616284) Indexer background runner(6) root directory: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist (index)
2024-07-16 16:48:55.794 [info] [Info  - 4:48:55 PM] (1616284) Indexing(6) started
2024-07-16 16:48:56.013 [info] [Info  - 4:48:56 PM] (1616284) scanned(6) 13 files over 1 exec env
2024-07-16 16:48:56.227 [info] [Info  - 4:48:56 PM] (1616284) indexed(6) 3 files over 1 exec env
2024-07-16 16:48:56.236 [info] [Info  - 4:48:56 PM] (1616284) Indexing finished(6).
2024-07-16 17:34:47.833 [info] [Info  - 5:34:47 PM] (1616284) Reloading configuration file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:34:47.834 [info] [Info  - 5:34:47 PM] (1616284) Setting pythonPath for service "pyright_bug": "/local/home/fau-st/.pyenv/versions/3.12.0/bin/python"
2024-07-16 17:34:47.834 [info] [Info  - 5:34:47 PM] (1616284) Setting environmentName for service "pyright_bug": "3.12.0 (global)"
2024-07-16 17:34:47.834 [info] [Info  - 5:34:47 PM] (1616284) Loading pyproject.toml file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:34:47.835 [info] [Info  - 5:34:47 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 17:34:47.835 [info] [Info  - 5:34:47 PM] (1616284) No include entries specified; assuming /local/home/fau-st/temp/pyright_bug
2024-07-16 17:34:47.835 [info] [Info  - 5:34:47 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 17:34:47.835 [info] [Info  - 5:34:47 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 17:34:47.835 [info] [Info  - 5:34:47 PM] (1616284) Auto-excluding **/.*
2024-07-16 17:34:47.846 [info] [Info  - 5:34:47 PM] (1616284) Found 1 source file
2024-07-16 17:34:54.110 [info] [Info  - 5:34:54 PM] (1616284) Reloading configuration file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:34:54.110 [info] [Info  - 5:34:54 PM] (1616284) Setting pythonPath for service "pyright_bug": "/local/home/fau-st/.pyenv/versions/3.12.0/bin/python"
2024-07-16 17:34:54.110 [info] [Info  - 5:34:54 PM] (1616284) Setting environmentName for service "pyright_bug": "3.12.0 (global)"
2024-07-16 17:34:54.111 [info] [Info  - 5:34:54 PM] (1616284) Loading pyproject.toml file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:34:54.111 [info] [Info  - 5:34:54 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 17:34:54.111 [info] [Info  - 5:34:54 PM] (1616284) No include entries specified; assuming /local/home/fau-st/temp/pyright_bug
2024-07-16 17:34:54.111 [info] [Info  - 5:34:54 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 17:34:54.111 [info] [Info  - 5:34:54 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 17:34:54.111 [info] [Info  - 5:34:54 PM] (1616284) Auto-excluding **/.*
2024-07-16 17:34:54.121 [info] [Info  - 5:34:54 PM] (1616284) Found 1 source file
2024-07-16 17:34:55.274 [info] [Info  - 5:34:55 PM] (1616284) Reloading configuration file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:34:55.275 [info] [Info  - 5:34:55 PM] (1616284) Setting pythonPath for service "pyright_bug": "/local/home/fau-st/.pyenv/versions/3.12.0/bin/python"
2024-07-16 17:34:55.275 [info] [Info  - 5:34:55 PM] (1616284) Setting environmentName for service "pyright_bug": "3.12.0 (global)"
2024-07-16 17:34:55.275 [info] [Info  - 5:34:55 PM] (1616284) Loading pyproject.toml file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:34:55.276 [info] [Info  - 5:34:55 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 17:34:55.276 [info] [Info  - 5:34:55 PM] (1616284) No include entries specified; assuming /local/home/fau-st/temp/pyright_bug
2024-07-16 17:34:55.276 [info] [Info  - 5:34:55 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 17:34:55.276 [info] [Info  - 5:34:55 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 17:34:55.276 [info] [Info  - 5:34:55 PM] (1616284) Auto-excluding **/.*
2024-07-16 17:34:55.294 [info] [Info  - 5:34:55 PM] (1616284) Found 1 source file
2024-07-16 17:35:37.339 [info] [Info  - 5:35:37 PM] (1616284) Setting pythonPath for service "pyright_bug": "/local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python"
2024-07-16 17:35:37.339 [info] [Info  - 5:35:37 PM] (1616284) Setting environmentName for service "pyright_bug": "3.12.0 (pyright_bug venv)"
2024-07-16 17:35:37.339 [info] [Info  - 5:35:37 PM] (1616284) Loading pyproject.toml file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:35:37.361 [info] [Info  - 5:35:37 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 17:35:37.361 [info] [Info  - 5:35:37 PM] (1616284) No include entries specified; assuming /local/home/fau-st/temp/pyright_bug
2024-07-16 17:35:37.361 [info] [Info  - 5:35:37 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 17:35:37.361 [info] [Info  - 5:35:37 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 17:35:37.361 [info] [Info  - 5:35:37 PM] (1616284) Auto-excluding **/.*
2024-07-16 17:35:37.408 [info] [Info  - 5:35:37 PM] (1616284) Found 1 source file
2024-07-16 17:35:37.428 [info] [Info  - 5:35:37 PM] (1616284) Setting pythonPath for service "<default>": "/local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python"
2024-07-16 17:35:37.428 [info] [Info  - 5:35:37 PM] (1616284) Setting environmentName for service "<default>": "3.12.0 (pyright_bug venv)"
2024-07-16 17:35:37.428 [info] [Info  - 5:35:37 PM] (1616284) No include entries specified; assuming /<default workspace root>
2024-07-16 17:35:37.428 [info] [Info  - 5:35:37 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 17:35:37.428 [info] [Info  - 5:35:37 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 17:35:37.428 [info] [Info  - 5:35:37 PM] (1616284) Auto-excluding **/.*
2024-07-16 17:35:37.458 [info] [Info  - 5:35:37 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 17:35:37.590 [info] [Error - 5:35:37 PM] (1616284) File or directory "/<default workspace root>" does not exist.
2024-07-16 17:35:37.590 [info] [Info  - 5:35:37 PM] (1616284) No source files found.
2024-07-16 17:35:37.842 [info] [Info  - 5:35:37 PM] (1616284) Indexer background runner(7) root directory: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist (index)
2024-07-16 17:35:37.842 [info] [Info  - 5:35:37 PM] (1616284) Indexing(7) started
2024-07-16 17:35:38.015 [info] [Info  - 5:35:38 PM] (1616284) scanned(7) 13 files over 1 exec env
2024-07-16 17:35:38.187 [info] [Info  - 5:35:38 PM] (1616284) indexed(7) 3 files over 1 exec env
2024-07-16 17:35:38.197 [info] [Info  - 5:35:38 PM] (1616284) Indexing finished(7).
2024-07-16 17:36:28.215 [info] [Info  - 5:36:28 PM] (1616284) Reloading configuration file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:36:28.216 [info] [Info  - 5:36:28 PM] (1616284) Setting pythonPath for service "pyright_bug": "/local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python"
2024-07-16 17:36:28.216 [info] [Info  - 5:36:28 PM] (1616284) Setting environmentName for service "pyright_bug": "3.12.0 (pyright_bug venv)"
2024-07-16 17:36:28.217 [info] [Info  - 5:36:28 PM] (1616284) Loading pyproject.toml file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:36:28.217 [info] [Info  - 5:36:28 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 17:36:28.217 [info] [Info  - 5:36:28 PM] (1616284) No include entries specified; assuming /local/home/fau-st/temp/pyright_bug
2024-07-16 17:36:28.218 [info] [Info  - 5:36:28 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 17:36:28.218 [info] [Info  - 5:36:28 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 17:36:28.218 [info] [Info  - 5:36:28 PM] (1616284) Auto-excluding **/.*
2024-07-16 17:36:28.218 [info] [Warn  - 5:36:28 PM] (1616284) The useLibraryCodeForTypes has been specified in both the config file and the client settings. The value in the config file (true) will take precedence
2024-07-16 17:36:28.233 [info] [Info  - 5:36:28 PM] (1616284) Found 1 source file
2024-07-16 17:36:46.148 [info] [Info  - 5:36:46 PM] (1616284) Reloading configuration file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:36:46.148 [info] [Info  - 5:36:46 PM] (1616284) Setting pythonPath for service "pyright_bug": "/local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python"
2024-07-16 17:36:46.148 [info] [Info  - 5:36:46 PM] (1616284) Setting environmentName for service "pyright_bug": "3.12.0 (pyright_bug venv)"
2024-07-16 17:36:46.148 [info] [Info  - 5:36:46 PM] (1616284) Loading pyproject.toml file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:36:46.149 [info] [Info  - 5:36:46 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 17:36:46.149 [info] [Info  - 5:36:46 PM] (1616284) No include entries specified; assuming /local/home/fau-st/temp/pyright_bug
2024-07-16 17:36:46.149 [info] [Info  - 5:36:46 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 17:36:46.149 [info] [Info  - 5:36:46 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 17:36:46.149 [info] [Info  - 5:36:46 PM] (1616284) Auto-excluding **/.*
2024-07-16 17:36:46.162 [info] [Info  - 5:36:46 PM] (1616284) Found 1 source file
2024-07-16 17:39:47.510 [info] (1616284) No configuration file found.
2024-07-16 17:39:47.510 [info] (1616284) pyproject.toml file found at /local/home/fau-st/temp/pyright_bug.
2024-07-16 17:39:47.510 [info] [Info  - 5:39:47 PM] (1616284) Setting pythonPath for service "pyright_bug": "/local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python"
2024-07-16 17:39:47.510 [info] [Info  - 5:39:47 PM] (1616284) Setting environmentName for service "pyright_bug": "3.12.0 (pyright_bug venv)"
2024-07-16 17:39:47.510 [info] [Info  - 5:39:47 PM] (1616284) Loading pyproject.toml file at /local/home/fau-st/temp/pyright_bug/pyproject.toml
2024-07-16 17:39:47.519 [info] [Info  - 5:39:47 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 17:39:47.519 [info] (1616284) Assuming Python platform Linux
2024-07-16 17:39:47.519 [info] [Info  - 5:39:47 PM] (1616284) No include entries specified; assuming /local/home/fau-st/temp/pyright_bug
2024-07-16 17:39:47.519 [info] [Info  - 5:39:47 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 17:39:47.519 [info] [Info  - 5:39:47 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 17:39:47.519 [info] [Info  - 5:39:47 PM] (1616284) Auto-excluding **/.*
2024-07-16 17:39:47.548 [info] [Info  - 5:39:47 PM] (1616284) Search paths for file:///local/home/fau-st/temp/pyright_bug
2024-07-16 17:39:47.549 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib
2024-07-16 17:39:47.549 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/temp/pyright_bug
2024-07-16 17:39:47.549 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/temp/pyright_bug/typings
2024-07-16 17:39:47.549 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stubs/...
2024-07-16 17:39:47.549 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/bundled/stubs
2024-07-16 17:39:47.549 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12
2024-07-16 17:39:47.549 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12/lib-dynload
2024-07-16 17:39:47.549 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/lib/python3.12/site-packages
2024-07-16 17:39:47.549 [info] [Info  - 5:39:47 PM] (1616284) Adding fs watcher for library directories:
file:///local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12
file:///local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12/lib-dynload
file:///local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/lib/python3.12/site-packages
2024-07-16 17:39:47.549 [info] [Info  - 5:39:47 PM] (1616284) Adding fs watcher for directories:
file:///local/home/fau-st/temp/pyright_bug
2024-07-16 17:39:47.549 [info] (1616284) Searching for source files
2024-07-16 17:39:47.549 [info] [Info  - 5:39:47 PM] (1616284) Found 1 source file
2024-07-16 17:39:47.566 [info] (1616284) pytest configurations: {"message":"script","classes":["Test"],"files":["test_*.py","*_test.py"],"functions":["test"]}
2024-07-16 17:39:47.566 [info] (1616284) Server settings returned for workspace: undefined: {
  "autoSearchPaths": true,
  "disableLanguageServices": false,
  "openFilesOnly": false,
  "useLibraryCodeForTypes": true,
  "watchForSourceChanges": true,
  "watchForLibraryChanges": true,
  "watchForConfigChanges": true,
  "typeCheckingMode": "strict",
  "diagnosticSeverityOverrides": {
    "reportShadowedImports": "warning"
  },
  "logLevel": "log",
  "autoImportCompletions": true,
  "indexing": false,
  "completeFunctionParens": false,
  "enableExtractCodeAction": true,
  "indexOptions": {
    "packageDepths": [
      [
        "sklearn",
        2,
        false
      ],
      [
        "matplotlib",
        2,
        false
      ],
      [
        "scipy",
        2,
        false
      ],
      [
        "django",
        2,
        false
      ],
      [
        "flask",
        2,
        false
      ],
      [
        "fastapi",
        2,
        false
      ]
    ],
    "userFileIndexingLimit": 2000
  },
  "variableInlayTypeHints": false,
  "callArgumentNameInlayHints": "partial",
  "functionReturnInlayTypeHints": true,
  "pytestParametersInlayTypeHints": true,
  "importFormat": "absolute",
  "includeFileSpecs": [],
  "excludeFileSpecs": [],
  "ignoreFileSpecs": [],
  "formatOnType": true,
  "taskListTokens": [],
  "enablePytestSupport": true,
  "gotoDefinitionInStringLiteral": true,
  "remapDiagnostics": false,
  "intelliCodeEnabled": true,
  "pythonPath": {
    "_key": "/local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python",
    "_filePath": "/local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python",
    "_query": "",
    "_fragment": "",
    "_originalString": "file:///local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python",
    "_isCaseSensitive": true
  },
  "pythonEnvironmentName": "3.12.0 (pyright_bug venv)",
  "fixAll": [],
  "extraCommitChars": false,
  "autoFormatStrings": false,
  "autoIndent": true,
  "supportRestructuredText": false,
  "collectModuleInfo": false,
  "nodeExecutable": "",
  "notebookRunStartupCommands": "",
  "editorIndentConfig": {
    "defaultTabSequence": "    ",
    "tabSize": 4
  }
}
2024-07-16 17:39:47.570 [info] (1616284) No pyproject.toml file found.
2024-07-16 17:39:47.570 [info] [Info  - 5:39:47 PM] (1616284) Setting pythonPath for service "<default>": "/local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python"
2024-07-16 17:39:47.570 [info] [Info  - 5:39:47 PM] (1616284) Setting environmentName for service "<default>": "3.12.0 (pyright_bug venv)"
2024-07-16 17:39:47.570 [info] [Info  - 5:39:47 PM] (1616284) No include entries specified; assuming /<default workspace root>
2024-07-16 17:39:47.570 [info] [Info  - 5:39:47 PM] (1616284) Auto-excluding **/node_modules
2024-07-16 17:39:47.570 [info] [Info  - 5:39:47 PM] (1616284) Auto-excluding **/__pycache__
2024-07-16 17:39:47.570 [info] [Info  - 5:39:47 PM] (1616284) Auto-excluding **/.*
2024-07-16 17:39:47.588 [info] [Info  - 5:39:47 PM] (1616284) Assuming Python version 3.12.0.final.0
2024-07-16 17:39:47.588 [info] (1616284) Assuming Python platform Linux
2024-07-16 17:39:47.621 [info] [Info  - 5:39:47 PM] (1616284) Search paths for file:///%3Cdefault%20workspace%20root%3E
2024-07-16 17:39:47.621 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib
2024-07-16 17:39:47.621 [info] [Info  - 5:39:47 PM] (1616284)   /<default workspace root>
2024-07-16 17:39:47.621 [info] [Info  - 5:39:47 PM] (1616284)   /<default workspace root>/typings
2024-07-16 17:39:47.621 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stubs/...
2024-07-16 17:39:47.621 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/bundled/stubs
2024-07-16 17:39:47.621 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12
2024-07-16 17:39:47.621 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12/lib-dynload
2024-07-16 17:39:47.621 [info] [Info  - 5:39:47 PM] (1616284)   /local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/lib/python3.12/site-packages
2024-07-16 17:39:47.621 [info] [Info  - 5:39:47 PM] (1616284) Adding fs watcher for library directories:
file:///local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12
file:///local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12/lib-dynload
file:///local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/lib/python3.12/site-packages
2024-07-16 17:39:47.621 [info] [Info  - 5:39:47 PM] (1616284) Adding fs watcher for directories:
file:///%3Cdefault%20workspace%20root%3E
2024-07-16 17:39:47.622 [info] (1616284) Searching for source files
2024-07-16 17:39:47.622 [info] [Error - 5:39:47 PM] (1616284) File or directory "/<default workspace root>" does not exist.
2024-07-16 17:39:47.622 [info] [Info  - 5:39:47 PM] (1616284) No source files found.
2024-07-16 17:39:47.623 [info] (1616284) pytest configurations: {"message":"spawn /local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python ENOENT","classes":["Test"],"files":["test_*.py","*_test.py"],"functions":["test"]}
2024-07-16 17:39:47.623 [info] (1616284) pytest configurations: {"message":"script","classes":["Test"],"files":["test_*.py","*_test.py"],"functions":["test"]}
2024-07-16 17:39:47.632 [info] (1616284) pytest configurations: {"message":"spawn /local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python ENOENT","classes":["Test"],"files":["test_*.py","*_test.py"],"functions":["test"]}
2024-07-16 17:39:47.645 [info] (1616284) Attempting to resolve using local imports: __builtins__
2024-07-16 17:39:47.646 [info] (1616284) [BG(1)] analyzing: file:///local/home/fau-st/temp/pyright_bug/case.py ...
2024-07-16 17:39:47.646 [info] (1616284) [BG(1)]   parsing: file:///local/home/fau-st/temp/pyright_bug/case.py (20ms)
2024-07-16 17:39:47.695 [info] (1616284) [BG(1)]   parsing: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/builtins.pyi [fs read 1ms] (50ms)
2024-07-16 17:39:47.706 [info] (1616284) [BG(1)]   binding: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/builtins.pyi (10ms)
2024-07-16 17:39:47.706 [info] (1616284) [BG(1)]   binding: file:///local/home/fau-st/temp/pyright_bug/case.py (1ms)
2024-07-16 17:39:47.718 [info] (1616284) [BG(1)]   checking: file:///local/home/fau-st/temp/pyright_bug/case.py ...
2024-07-16 17:39:47.718 [info] (1616284) [BG(1)]     parsing: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/typing.pyi [fs read 0ms] (10ms)
2024-07-16 17:39:47.722 [info] (1616284) [BG(1)]     binding: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/typing.pyi (4ms)
2024-07-16 17:39:47.727 [info] (1616284) [BG(1)]     parsing: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/types.pyi [fs read 0ms] (4ms)
2024-07-16 17:39:47.731 [info] (1616284) [BG(1)]     binding: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/types.pyi (3ms)
2024-07-16 17:39:47.735 [info] (1616284) [BG(1)]     parsing: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/_typeshed/__init__.pyi [fs read 0ms] (2ms)
2024-07-16 17:39:47.736 [info] (1616284) [BG(1)]     binding: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/_typeshed/__init__.pyi (1ms)
2024-07-16 17:39:47.738 [info] (1616284) [BG(1)]     parsing: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/abc.pyi [fs read 0ms] (1ms)
2024-07-16 17:39:47.739 [info] (1616284) [BG(1)]     binding: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/abc.pyi (0ms)
2024-07-16 17:39:47.764 [info] (1616284) [BG(1)]     parsing: file:///local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12/enum.py [fs read 0ms] (24ms)
2024-07-16 17:39:47.773 [info] (1616284) [BG(1)]     binding: file:///local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12/enum.py (8ms)
2024-07-16 17:39:47.775 [info] (1616284) [BG(1)]     parsing: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/enum.pyi [fs read 0ms] (2ms)
2024-07-16 17:39:47.777 [info] (1616284) [BG(1)]     binding: file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib/enum.pyi (1ms)
2024-07-16 17:39:47.808 [info] (1616284) [BG(1)]     parsing: file:///local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12/typing.py [fs read 0ms] (30ms)
2024-07-16 17:39:47.808 [info] [Info  - 5:39:47 PM] (1616284) Could not import '_typing' in file '/local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12/typing.py'
2024-07-16 17:39:47.808 [info] [Info  - 5:39:47 PM] (1616284)   Looking in stubPath 'file:///local/home/fau-st/temp/pyright_bug/typings'
2024-07-16 17:39:47.808 [info] [Info  - 5:39:47 PM] (1616284)   Attempting to resolve stub package using root path 'file:///local/home/fau-st/temp/pyright_bug/typings'
2024-07-16 17:39:47.808 [info] [Info  - 5:39:47 PM] (1616284)   Attempting to resolve using root path 'file:///local/home/fau-st/temp/pyright_bug/typings'
2024-07-16 17:39:47.808 [info] [Info  - 5:39:47 PM] (1616284)   Looking in root directory of execution environment 'file:///local/home/fau-st/temp/pyright_bug'
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)   Attempting to resolve stub package using root path 'file:///local/home/fau-st/temp/pyright_bug'
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)   Attempting to resolve using root path 'file:///local/home/fau-st/temp/pyright_bug'
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)   Looking for typeshed stdlib path
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)   Looking for typeshed stdlib path
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)   Attempting to resolve using root path 'file:///local/home/fau-st/.vscode/extensions/ms-python.vscode-pylance-2024.7.1/dist/typeshed-fallback/stdlib'
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)   Typeshed path not found
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)   Finding python search paths
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)   Executing interpreter: '/local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/bin/python'
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)   Skipping '/local/home/fau-st/.pyenv/versions/3.12.0/lib/python312.zip' because it is not a valid directory
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)   Received 3 paths from interpreter
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)     file:///local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)     file:///local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12/lib-dynload
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)     file:///local/home/fau-st/.pyenv/versions/3.12.0/envs/pyright_bug/lib/python3.12/site-packages
2024-07-16 17:39:47.809 [info] [Info  - 5:39:47 PM] (1616284)   Looking in python search path 'file:///local/home/fau-st/.pyenv/versions/3.12.0/lib/python3.12'
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@github-actions github-actions bot added the needs repro Issue has not been reproduced yet label Jul 16, 2024
@erictraut
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This is due to the fact that pylance is using a slightly-older version of pyright. Once pylance upgrades to the latest version, you will see the same error in both places.

Your code is using a variable in a type annotation, which is explicitly forbidden by the python typing spec. There was a bug in pyright where it didn't always report this error, and I recently fixed the bug.

Here's the correct way to define this type alias:

MyTypeAlias: TypeAlias = Literal[SomeEnum.ENUM_VALUE] | None

Or using Python 3.12 syntax:

type MyTypeAlias = Literal[SomeEnum.ENUM_VALUE] | None

@debonte debonte added fixed in next version (pyright) A fix has been implemented and will appear in an upcoming version and removed needs repro Issue has not been reproduced yet labels Jul 16, 2024
@fau-st
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fau-st commented Jul 17, 2024

Thank you very much for the quick answer 👍 I'm aware this snippet uses invalid constructs, it's from a third party library and I wanted to be sure where the error was coming from.
Is CHANGELOG.md the right place to know about the pyright version shipped with pylance or can it be fetched somewhere else?

@fau-st fau-st closed this as completed Jul 17, 2024
@fau-st fau-st mentioned this issue Jul 17, 2024
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