unvar god tier calculator

import time


print "###############################################################################"
print "####################+++Unvarying's Calculator+++###############################"
print "###############################################################################\n"


def dm_addition(n1, n2):
    add = n1 + n2
    return add

def dm_subtraction(n1, n2):
    subtract = n1 - n2
    return subtract

def dm_multiplication(n1, n2):
    multiply = n1 * n2
    return multiply

def dm_division(n1, n2):
    divide = n1 / n2
    return divide
def calc():



    print "Which operation would you like to perform?"


    while True:
        print "Operations are +, -, *, or /. Please enter operation below."

        opq = raw_input()

        if opq == "+":
            print "Addition selected!"
            while True:
                fq = raw_input("Would you like to have more than 2 numbers in this operation? (y/n): ")
                amount = []
                if fq == "y" or fq == "Y":
                    while True:
                        a = raw_input("How many numbers would you like to have in this operation? ")

                        if a == "1":
                            print "Error! Must be more than 2 numbers!"
                            continue

                        elif a == "2":
                            print "Error! Must be more than 2 numbers!"


                        else: break

                    print "Appended!"
                    print "Please enter the "+a+" numbers you would like to add below:"

                    for x in range(0, + int(a)):
                        x = int(raw_input(""))
                        amount.append(x)

                    print "\nAppended!"

                    do_math = sum(amount)

                    x = str(do_math)

                    print "\nAnswer: "+x+"\n"

                    while True:
                        x_2 = raw_input("Would you like to continue using this calculator? (y/n) ")

                        if x_2 == "n" or x_2 == "N":
                            quit()
                        elif x_2 == "y" or x_2 == "Y":
                            return calc()


                elif fq == "n" or fq == "N":
                    break

                else:
                    print "Error! Answer must be Y or N!"
                    continue


            n1 = int(raw_input("What will be the first number?: "))
            n2 = int(raw_input("What will be the second number?: "))
            time.sleep(0.2)
            print "Appended!"
            time.sleep(0.2)
            a = dm_addition(n1, n2)
            print "Answer: %s" % (a)
            time.sleep(0.2)
            while True:
                qq = raw_input("Would you like to quit? (y/n)")
                if qq == "y" or qq == "Y":
                    quit()
                elif qq == "n" or qq == "N":
                    print "Which operation would you like to perform?"
                    break
                else:
                    print "Error, please enter Y or N"
                    continue

        elif opq == "-":
            print "Subtraction selected!"
            while True:
                    fq = raw_input("Would you like to have more than 2 numbers in this operation? (y/n): ")
                    amount = []
                    if fq == "y" or fq == "Y":
                        while True:
                            a = raw_input("How many numbers would you like to have in this operation? ")

                            if a == "1":
                                print "Error! Must be more than 2 numbers!"
                                continue

                            elif a == "2":
                                print "Error! Must be more than 2 numbers!"


                            else: break

                        print "Appended!"
                        print "Please enter the "+a+" numbers you would like to subtract below:"

                        for x in range(0, + int(a)):
                            x = int(raw_input(""))
                            amount.append(x)

                        print "\nAppended!"

                        do_math = reduce(lambda x, y: x-y, (amount))

                        x = str(do_math)

                        print "\nAnswer: "+x+"\n"

                        while True:
                            x_2 = raw_input("Would you like to continue using this calculator? (y/n) ")

                            if x_2 == "n" or x_2 == "N":
                                quit()
                            elif x_2 == "y" or x_2 == "Y":
                                return calc()


                    elif fq == "n" or fq == "N":
                        break

                    else:
                        print "Error! Answer must be Y or N!"
                        continue

            n1 = int(raw_input("What will be the first number?: "))
            n2 = int(raw_input("What will be the second number?: "))
            time.sleep(0.2)
            print "Appended!"
            time.sleep(0.2)
            a = dm_subtraction(n1, n2)
            print "Answer: %s" % (a)
            time.sleep(0.2)
            while True:
                qq = raw_input("Would you like to quit? (y/n)")
                if qq == "y" or qq == "Y":
                    quit()
                elif qq == "n" or qq == "N":
                    print "Which operation would you like to perform?"
                    break
                else:
                    print "Error, please enter Y or N"
                    continue
        elif opq == "*":
                print "Multiplication selected!"
                while True:
                    fq = raw_input("Would you like to have more than 2 numbers in this operation? (y/n): ")
                    amount = []
                    if fq == "y" or fq == "Y":
                        while True:
                            a = raw_input("How many numbers would you like to have in this operation? ")

                            if a == "1":
                                print "Error! Must be more than 2 numbers!"
                                continue

                            elif a == "2":
                                print "Error! Must be more than 2 numbers!"


                            else: break

                        print "Appended!"
                        print "Please enter the "+a+" numbers you would like to multiply below:"

                        for x in range(0, + int(a)):
                            x = int(raw_input(""))
                            amount.append(x)

                        print "\nAppended!"

                        do_math = reduce(lambda x, y: x*y, (amount))

                        x = str(do_math)

                        print "\nAnswer: "+x+"\n"

                        while True:
                            x_2 = raw_input("Would you like to continue using this calculator? (y/n) ")

                            if x_2 == "n" or x_2 == "N":
                                quit()
                            elif x_2 == "y" or x_2 == "Y":
                                return calc()


                    elif fq == "n" or fq == "N":
                        break

                    else:
                        print "Error! Answer must be Y or N!"
                        continue

                n1 = int(raw_input("What will be the first number?: "))
                n2 = int(raw_input("What will be the second number?: "))
                time.sleep(0.2)
                print "Appended!"
                time.sleep(0.2)
                a = dm_multiplication(n1, n2)
                print "Answer: %s" % (a)
                time.sleep(0.2)
                while True:
                    qq = raw_input("Would you like to quit? (y/n)")
                    if qq == "y" or qq == "Y":
                        quit()
                    elif qq == "n" or qq == "N":
                        print "Which operation would you like to perform?"
                        break
                    else:
                        print "Error, please enter Y or N"
                        continue

        elif opq == "/":
                print "Division selected!"
                while True:
                    fq = raw_input("Would you like to have more than 2 numbers in this operation? (y/n): ")
                    amount = []
                    if fq == "y" or fq == "Y":
                        while True:
                            a = raw_input("How many numbers would you like to have in this operation? ")

                            if a == "1":
                                print "Error! Must be more than 2 numbers!"
                                continue

                            elif a == "2":
                                print "Error! Must be more than 2 numbers!"


                            else: break

                        print "Appended!"
                        print "Please enter the "+a+" numbers you would like to divide below:"

                        for x in range(0, + int(a)):
                            x = int(raw_input(""))
                            amount.append(x)

                        print "\nAppended!"

                        do_math = reduce(lambda x, y: x/y, (amount))

                        x = str(do_math)

                        print "\nAnswer: "+x+"\n"

                        while True:
                            x_2 = raw_input("Would you like to continue using this calculator? (y/n) ")

                            if x_2 == "n" or x_2 == "N":
                                quit()
                            elif x_2 == "y" or x_2 == "Y":
                                return calc()


                    elif fq == "n" or fq == "N":
                        break

                    else:
                        print "Error! Answer must be Y or N!"
                        continue

                n1 = int(raw_input("What will be the first number?: "))
                n2 = int(raw_input("What will be the second number?: "))
                time.sleep(0.2)
                print "Appended!"
                time.sleep(0.2)
                a = dm_division(n1, n2)
                print "Answer: %s" % (a)
                time.sleep(0.2)
                while True:
                    qq = raw_input("Would you like to quit? (y/n)")
                    if qq == "y" or qq == "Y":
                        quit()
                    elif qq == "n" or qq == "N":
                        print "Which operation would you like to perform?"
                        break
                    else:
                        print "Error, please enter Y or N"
                        continue


        else:
            print "Error! Invalid operation selected! Please choose an operation from the list >>> +, -, *, or /."
            continue

    quit()
calc()