fizzbuzz.py

def fizzbuzz():

    while 1:
        try:
            first_num = input("This will make up your fizz. What number would you like to replace?")
            first_num = int(first_num)
        except ValueError:
            print("User string is not a number.")
            continue
        print("Your first number is", first_num)
        break

    while 1:
        try:
            second_num = input("This will make up your buzz. What number would you like to replace?")
            second_num = int(second_num)
        except ValueError:
            print("User string is not a number.")
            continue
        print("Your second number is", second_num)
        break

    while 1:
        try:
            user_min_range = input("What is the minimum number in your range?")
            user_min_range = int(user_min_range)
        except ValueError:
            print("User string is not a number.")
            continue
        print("Your minimum number is", user_min_range)
        break

    while 1:
        try:
            user_max_range = input("What is the maximum number in your range?")
            user_max_range = int(user_max_range)
        except ValueError:
            print("User string is not a number.")
            continue
        print("Your maximum number is", user_max_range)
        break

    for i in range(user_min_range, user_max_range):
        if i % first_num == 0 and i % second_num == 0:
            print("fizzbuzz")
        elif i % first_num == 0:
            print("fizz")
        elif i % second_num == 0:
            print("buzz")
        else:
            print(i)

    while 1:
        try:
            answer = input("Would you like to try again? 1 = yes, 0 = no")
            answer = int(answer)
        except ValueError:
            print("User string is not a number.")
            continue
        if answer != 1 and answer != 0:
            print("That's not a valid response. Please select between 0 and 1.")
        elif answer == 0:
            print("Thanks for playing!")
            break
        else:
            fizzbuzz()
            break

fizzbuzz()