Can I set a function as a default argument?

Question

I have recently found out that a function can be used like this:

def func():
    print("Hello World!")


def run_func(name_of_func):
    name_of_func()


run_func(func)  # Prints "Hello World!"

A function name is used as an argument. So my question is if a default argument can be used in this situation. More specifically, if run_func() is called without an argument, can there be a default argument so my program outputs nothing and ends without raising an error?

There are similar functions like this for scheduling a function and looping it. However, when the function is called, an argument must be put in or it will result in an error (basically there is no default argument).

Answer 1

Yes.

def func():
    print("Hello World!")


def run_func(name_of_func=func):
    name_of_func()


run_func()  # Prints "Hello World!"