"Configuration Changed" error

[johnlarusic]

Hello! I've created a project using Django Cookiecutter, following the steps listed here:
https://cookiecutter-django.readthedocs.io/en/latest/developing-locally.html

(from a project generation perspective, I'm using about as vanilla setup as possible -- "no" to pretty well all questions except "y" for Windows and "y" for Whitenoise; no cloud provider, using GitHub as CI tool).

When I open the project up in VSCode and setup a path to dmypy.exe correctly (as found in my virtual environment folder) I get the following error raised by VSCode in the output panel:

Mypy extension activated, version 0.2.1
Registering listener for interpreter changed event
Listener registered
...
Mypy settings changed: c:\Users\MYUSERNAME\Development\Navigator\nav
[3] Check workspace: c:\Users\MYUSERNAME\Development\Navigator\nav
[3] Received python path from Python extension: c:\Users\MYUSERNAME\Development\Navigator\.venv\Scripts\python.exe
[3] Running dmypy in folder c:\Users\MYUSERNAME\Development\Navigator\nav
'c:\Users\MYUSERNAME\Development\Navigator\nav\..\.venv\scripts\dmypy.exe' --status-file 'c:\Users\MYUSERNAME\AppData\Roaming\Code\User\workspaceStorage\0e535676e284b08a0f096efc595261d2\matangover.mypy\dmypy-25dcc9f6aa1070ea6d08209fdd5961c72b27b416.json' run --log-file 'c:\Users\MYUSERNAME\AppData\Roaming\Code\User\workspaceStorage\0e535676e284b08a0f096efc595261d2\matangover.mypy\dmypy-25dcc9f6aa1070ea6d08209fdd5961c72b27b416.log' -- . --show-column-numbers --no-error-summary --no-pretty --no-color-output --python-executable 'c:\Users\MYUSERNAME\Development\Navigator\.venv\Scripts\python.exe'
[3] stdout:
Daemon started
Restarting: configuration changed
Daemon stopped
Daemon started

[3] stderr:
Response: {'restart': 'configuration changed', 'platform': 'win32', 'python_version': '3_9', 'roundtrip_time': 0.5840277671813965}

[3] Error running mypy in c:\Users\MYUSERNAME\Development\Navigator\nav: mypy failed with error: "Response: {'restart': 'configuration changed', 'platform': 'win32', 'python_version': '3_9', 'roundtrip_time': 0.5840277671813965}

Here is my .vscode/settings.json file:

{
  "python.linting.mypyEnabled": true,
  "python.linting.enabled": true,
  "mypy.dmypyExecutable": "${workspaceFolder}\\..\\.venv\\scripts\\dmypy.exe"
}

I'm not quite sure how to further debug this issue ("configuration changed" isn't turning up relevant google results). What I know is that this extension works for other projects that I've manually added mypy to.

I'm not sure who exactly I should be raising my issue to -- this VSCode extension, mypy, or the Django Cookiecutter folks, but thought I'd start here. Any advice or direction would be appreciated! Thanks in advance.

Update: Still getting the error, but can confirm that mypy works fine when called via command line:

(.venv) PS C:\Users\MYUSERNAME\Development\Navigator\nav> mypy .
config\urls.py:19: error: Unsupported operand types for + ("List[object]" and "List[URLPattern]")
config\urls.py:46: error: Incompatible types in assignment (expression has type "List[URLResolver]", variable has type "List[object]")
config\urls.py:46: note: "List" is invariant -- see https://mypy.readthedocs.io/en/stable/common_issues.html#variance
config\urls.py:46: note: Consider using "Sequence" instead, which is covariant
config\urls.py:46: error: Unsupported operand types for + ("List[URLResolver]" and "List[object]")
Found 3 errors in 1 file (checked 39 source files)

[johnlarusic]

OK, looks like this is a mypy issue: python/mypy#10709

For everyone's reference, the (temporary?) fix is add ignore_missing_imports_per_module = True to the mypy config as noted in the issue thread.