Command 'Format Document With...' resulted in an error. TypeError: 'type' object is not subscriptable

[BrikeX]

Diagnostic Data

• Python version (& distribution if applicable, e.g., Anaconda): 3.8.20
• Type of virtual environment used (e.g., conda, venv, virtualenv, etc.): conda
• Operating system (and version): Ubuntu 20.04.6 LTS x86_64
• Version of tool extension you are using: 2025.2.0 on VSCode 1.98.0

Behaviour

Expected Behavior

Format documents correctly as before

Actual Behavior

I try to format this code

by

, and then

Reproduction Steps:

Do as what I have posted

Logs:

Click here for detailed logs

2025-03-06 13:30:06.780 [info] /home/x/miniconda3/envs/pp_thanos/bin/python -m black --stdin-filename /home/x/irepo/test.py - 2025-03-06 13:30:06.780 [info] CWD formatter: /home/x/irepo 2025-03-06 13:30:06.782 [info] [Error - 1:30:06 PM] Traceback (most recent call last): File "/home/x/.vscode/extensions/ms-python.black-formatter-2025.2.0/bundled/tool/lsp_server.py", line 531, in _run_tool_on_document result = utils.run_module( File "/home/x/.vscode/extensions/ms-python.black-formatter-2025.2.0/bundled/tool/lsp_utils.py", line 171, in run_module return _run_module(module, argv, use_stdin, source) File "/home/x/.vscode/extensions/ms-python.black-formatter-2025.2.0/bundled/tool/lsp_utils.py", line 156, in _run_module runpy.run_module(module, run_name="__main__") File "/home/x/miniconda3/envs/pp_thanos/lib/python3.8/runpy.py", line 203, in run_module mod_name, mod_spec, code = _get_module_details(mod_name) File "/home/x/miniconda3/envs/pp_thanos/lib/python3.8/runpy.py", line 144, in _get_module_details return _get_module_details(pkg_main_name, error) File "/home/x/miniconda3/envs/pp_thanos/lib/python3.8/runpy.py", line 111, in _get_module_details __import__(pkg_name) File "/home/x/.vscode/extensions/ms-python.black-formatter-2025.2.0/bundled/libs/black/__init__.py", line 32, in from black.cache import Cache File "/home/x/.vscode/extensions/ms-python.black-formatter-2025.2.0/bundled/libs/black/cache.py", line 16, in from black.mode import Mode File "/home/x/.vscode/extensions/ms-python.black-formatter-2025.2.0/bundled/libs/black/mode.py", line 67, in VERSION_TO_FEATURES: dict[TargetVersion, set[Feature]] = { TypeError: 'type' object is not subscriptable

2025-03-06 13:30:06.782 [info] [Error - 1:30:06 PM] Request textDocument/formatting failed.
2025-03-06 13:30:06.782 [info] Message: TypeError: 'type' object is not subscriptable
Code: -32603
[object Object]

Outcome When Attempting Debugging Steps:

Did running it from the command line work?
Using a command(black test.py) to format and it works fine

Extra Details

• What other Python-related extensions are you using?
• autopep8 works fine but Black does not work

[vencoi]

I am experiencing the same issue with Docker Alpine 3.20 and Python 3.8.0. The formatter is not working as expected.

[vencoi]

Windows 11, Pyrhon 3.8.10

2025-03-06 17:32:22.478 [info] [Error - 5:32:22 PM] Traceback (most recent call last):
  File "c:\Users\vencoi\.vscode\extensions\ms-python.black-formatter-2025.2.0\bundled\tool\lsp_server.py", line 531, in _run_tool_on_document
    result = utils.run_module(
  File "c:\Users\vencoi\.vscode\extensions\ms-python.black-formatter-2025.2.0\bundled\tool\lsp_utils.py", line 171, in run_module
    return _run_module(module, argv, use_stdin, source)
  File "c:\Users\vencoi\.vscode\extensions\ms-python.black-formatter-2025.2.0\bundled\tool\lsp_utils.py", line 156, in _run_module
    runpy.run_module(module, run_name="__main__")
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.2800.0_x64__qbz5n2kfra8p0\lib\runpy.py", line 203, in run_module
    mod_name, mod_spec, code = _get_module_details(mod_name)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.2800.0_x64__qbz5n2kfra8p0\lib\runpy.py", line 144, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.2800.0_x64__qbz5n2kfra8p0\lib\runpy.py", line 111, in _get_module_details
    __import__(pkg_name)
  File "c:\Users\vencoi\.vscode\extensions\ms-python.black-formatter-2025.2.0\bundled\libs\black\__init__.py", line 32, in <module>
    from black.cache import Cache
  File "c:\Users\vencoi\.vscode\extensions\ms-python.black-formatter-2025.2.0\bundled\libs\black\cache.py", line 16, in <module>
    from black.mode import Mode
  File "c:\Users\vencoi\.vscode\extensions\ms-python.black-formatter-2025.2.0\bundled\libs\black\mode.py", line 67, in <module>
    VERSION_TO_FEATURES: dict[TargetVersion, set[Feature]] = {
TypeError: 'type' object is not subscriptable

2025-03-06 17:32:22.480 [info] [Trace - 5:32:22 PM] Received response 'textDocument/formatting - (8)' in 16ms. Request failed: TypeError: 'type' object is not subscriptable (-32603).
2025-03-06 17:32:22.480 [info] [Error - 5:32:22 PM] Request textDocument/formatting failed.
2025-03-06 17:32:22.480 [info]   Message: TypeError: 'type' object is not subscriptable
  Code: -32603 
[object Object]

[karthiknadig]

Python 3.8 is deprecated in the latest version of black. I recommend pinning the extension to previous stable version. 2024.*

[BrikeX]

Python 3.8 is deprecated in the latest version of black. I recommend pinning the extension to previous stable version. 2024.*

OK, Version 2024.6.0 does work