Collate Sequence

gistfile1.txt

def collatz(number):
    global result
    if number % 2 == 0:
        result = number // 2
        return result
    elif number % 2 == 1:
        result = 3 * number + 1
        return result

try:
    users_number = int(input("Введите целое число: "))
except ValueError:
    print ("Вы ввели не целое число")
    exit()


result = collatz(users_number)
while result != 1:
    result_after = collatz(result)
    print(result_after)