Can I use python return function to only return the value to the specific function

Question

If I have this

def fun1:
    a = 2
    b = 3
    return a
    return b     #problem is here
def fun2:
    c = fun1()
print(fun1())

I want to return a be a default return and fun1 return a to every other functions but return b only works for returning to fun2 and nowhere else

Answer 1

What you can do is create an optional parameter for the function which decides what value to return.

def fun1(arg=0):
    a = 2
    if arg != 0:
        a = 3
    return a
def fun2():
    c = fun1(1)
print(fun1())
fun2()

Here if you call fun1() without any arguments, it will return you 2. But if you give it any integer argument [ example: fun1(2) or fun1(1) ], it will return you 3.