Editor mark syntax error when trying to decorate a Python function with a decorator defined as an instance method inside the class

[JesusFragoso]

• VS Code Version: 1.79.2
• OS Version: macOS Sonoma 14.0

Steps to Reproduce:

1. Create this code:

from typing import Callable

class Formatter:
    def decorator(self, main_function: Callable) -> Callable:
        def wrapper(*args, **kwargs):
            print("Inside the decorator")
            return main_function(*args, **kwargs)
        return wrapper

Which in this case, is a class called Formatter that has an instance method that acts as decorator, called decorator.

3. Now, create a method called foo, and decorate it using the decorator instance method, but, because in this case we need an instance of the Formatter class to use this decorator, we need to make the following code:

@Formatter().decorator
def second_foo():
    print("Inside the second_foo function")

if __name__ == "__main__":
    second_foo()

And it works, but the called decorator is marked in red, as if it were a mistake.

Is this an error of the editor, or do I need to define some type hints?

[erictraut]

This is a TextMate grammar issue.