Cannot get Black to ignore a file

Question

My IDE is VSCode. I have Black 22.8.0 set as Formatting Provider and IDE is set to format the code on save. This is the first time I apply a code formatter.

This is my Django project structure:

project
|--- settings.py

And this is my pyproject.toml file:

[tool.black]
line-length = 90
skip-string-normalization = true
extend-exclude = '''(manage.py|settings.py|asgi.py|wsgi.py|urls.py|migrations/*)'''

And the partial output of command black . -v:

manage.py ignored: matches the --extend-exclude regular expression
project\asgi.py ignored: matches the --extend-exclude regular expression
project\wsgi.py ignored: matches the --extend-exclude regular expression
project\settings.py ignored: matches the --extend-exclude regular expression

So settings.py is ignored.

But I have this in my settings.py file:

try:
   from dotenv import load_dotenv
   load_dotenv
except ImportError:
   pass

But if I save this file, it turns into this:

try:
    from dotenv import load_dotenv

    load_dotenv
except ImportError:
    pass

An extra line is added after from. If I disable Black this won't happen, which means Black is formatting this excluded file.

This is absolutely not a big deal but if Black is not working here, I'm not sure it works anywhere.

Edit 1: I switched the formatter to autopep8 for test and this didn't happen so definitely its Black. So again, why Black formats an excluded file?