How to return values from For Loop via return in a function

[AykutRobotics]

UPDATE:

What I wanted to do was this simply:
"Return a value from for loop inside of a function in python"

I wrote a simple testing code to test this append in python as the way I want to achieve with every possibilities to print / return a value, and the result is same that nothing is returning at all...

#a = []
def append_try():
    a = []
    for i in range(2):
        a.append(i)
    #print(a)    
    return a


def main():
    b = append_try()
    if b == "'[0]'":
        print("0")
    elif b == "'[1]'":
        print("1")
    elif b == "'[0, 1]'":
        print("2")
    else:
        print("it is not working")

main()

What I got from print is a big "it is not working". Thus, it is not working with append. Is there any other way to do the thing I want ? thank you.