def get_face_data(D:\\pythonProject\\know-people): ^

This line of code is incomplete and contains a syntax error. It seems like you are trying to define a function called `get_face_data` with a file path as its argument. However, you need to provide a valid function definition and specify the data type of the argument. Here's an example of a valid function definition:

def get_face_data(file_path: str):
    # function body goes here

In this example, `file_path` is the argument of the function and its data type is specified as `str`. You need to replace `D:\\pythonProject\\know-people` with a valid file path within the function body.