CODEWITHSUNDEEP
pythonreturngoldbach-conjecture
NessP
NessP

Reputation: 1

Trouble with return between functions

I am a beginner to python and coding in general and have not a clue why return in the code below doesn't move across functions. Shouldn't the value for n be stored for use in all functions? print(n) is in there only for my own sake to see if it works, and it is apparently not.

def main():
    print("This program tests the Goldbach's conjecture")
    get_input()
    print(n)


def get_input():
    n = 0
    while n == 0:
        try:
            v = int(input("Please enter an even integer larger than 2: "))
            if v <= 2:
                print("Wrong input!")
                continue
            if v%2 == 1:
                print("Wrong input!")
                continue
            if v%2 == 0:
                n = v
        except ValueError:
            print("Bad input!")
            continue
    return n

Upvotes: -1

Views: 33

Answers (1)

Hook
Hook

Reputation: 354

You are not storing the value returned by get_input anywhere, you should keep it in a variable (or printing it directly), e.g -

def main():
    print("This program tests the Goldbach's conjecture")
    val = get_input()
    print(val)

n is an internal variable that stored only within the scope of get_input.

Upvotes: 1

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