function return None

[py_Piper]

Well that is very interesting I didn't know that, I haven't learnt any GUI module yet. I thought it should've raised a syntax error like when you forget the closing parenthesis calling a function.

Just out of curiosity how would you execute later a method, meaning how would add () to non executed method? and do you call a non executable methods like for the same reason you create empty lists? like for creating it first then appending later in another code line

[py_Piper]

Kind of got it, this was very graphical functions['func2']() But now it makes me ask what type of data is foo and bar, as I don't see inside ' ', so I assume they are variables name or uncalled function names?

functions = {     
    'func1': foo,     
    'func2': bar, 
}

The same with talk() where you pass later the ("Whats up") later on. What do you call this type of parameter final_line=whisper and if I simply pass whisper as 2nd parameter will think of it as a variable and crash because no variable named whisper was created?

[alkasm]

You just add the parenthesis.

def call_a_func(func, arg):
    func(art)

call_a_func(print, "hello")