Yeah, this is the correct answer and it works with functions or objects. This is commonly used to implement logging callbacks e.g. from collections.abc im

Yeah, this is the correct answer and it works with functions or objects. This is commonly used to implement logging callbacks e.g. from collections.abc import Callable def log_fn(message: str = ''): print(f'This is your log: {message}') def run_read_file(file_to_read:str, log_handler: Callable=log_fn): contents = open(file_to_read).readlines() for line in contents: log_handler(message=line)