Calculator

import math
finished = False
# Asks the user what its name is and stores it as a value
# Asks user for their name and stores it under user_name
user_name = input("What is your name?>")
bots_name = "Mansoor"  # Name of the bot
print("Hi, I'm " + bots_name + ", your personal bot.")
print("Welcome " + user_name + "!!")
while not finished:
    # This shows the user the options available for the bot to perform
    print("What would you like to do?")
    print("1 - Add 2 numbers")
    print("2 - Subtract 2 numbers")
    print("3 - Calculate the area of a triangle")
    print("4 - Caculate the area of a square")
    print("5 - Multiply 2 numbers")
    print("6 - Divide 2 numbers")
    print("7 - Calculate the average of a set of numbers")
    print("8 - Generate a shopping list")
    print("9 - Calculate Area of a circle")
    print("10 - Find the roots of a quadratic function")
    print("11 - End program")
    value = input("Value> ")
    print(" ")

    # If the person picks 1, then they trigger the addition command
    if value == "1" or value == "one" or value == "One":
        print("Let's add some numbers")
        input1 = input("Number 1> ")
        input2 = input("Number 2> ")
        number1 = int(input1)
        number2 = int(input2)
        result = number1 + number2
        addoutput = str(result)
        print(input1 + " + " + input2 + " = " + addoutput)
        print(" ")

    # If the person picks 2, then they trigger the subtraction command
    elif value == "2":
        print("Let's subtract some numbers")
        input1 = input("Number 1> ")
        input2 = input("Number 2> ")
        number1 = int(input1)
        number2 = int(input2)
        result = number1 - number2
        suboutput = str(result)
        print(input1 + " - " + input2 + " = " + suboutput)
        print(" ")

    # If the person picks 3, then they calculate the area of a triangle
    elif value == "3" or value == "three" or value == "Three":
        print("Let's calculate the area of a triangle")  # (b*h)/2
        base = input("Base (in cm)> ")
        height = input("Height (in cm)> ")
        numbase = int(base)
        numheight = int(height)
        result = numbase * numheight/2
        trioutput = str(result)
        print("Area of the triangle = " + trioutput + "cm\u00b2")
        print(" ")

    # If the person picks 4, then they can calculate a square number
    elif value == "4" or value == "four" or value == "Four":
        print("Let's calculate area of a square")  # n^2
        length = input("length (in cm)>")
        numx = int(length)
        result = numx * numx
        sqoutput = str(result)
        print("Area of this square is = " + sqoutput + "cm\u00b2")
        print(" ")

    # If the person picks 5, then they multiply two numbers
    elif value == "5" or value == "five" or value == "Five":
        print("Let's multiply some numbers")
        input1 = input("Number 1> ")
        input2 = input("Number 2> ")
        number1 = int(input1)
        number2 = int(input2)
        result = number1 * number2
        multoutput = str(result)
        print(input1 + " x " + input2 + " = " + multoutput)
        print(" ")

    # If the person picks 6, then they divide numbers
    elif value == "6" or value == "six" or value == "Six":
        print("Let's divide some numbers")
        input1 = input("Number 1> ")
        input2 = input("Number 2> ")
        number1 = int(input1)
        number2 = int(input2)
        if input2 == "0":
            print("Invalid solution")
            print(" ")
        else:
            result = number1 / number2
            divoutput = str(result)
            print(input1 + " / " + input2 + " = " + divoutput)
            print(" ")

    # If the person picks 7, this means they are able
    # to calculate averages of a set of numbers
    elif value == "7" or value == "seven" or value == "Seven":
        how_many = input("How many numbers> ")
        how_many = int(how_many)
        total = 0

        for number_count in range(how_many):
            number = input("Enter number " + str(number_count) + "> ")
            total = total + int(number)

        result = total/how_many
        print("The average = " + str(result))
        print(" ")

    # If the person picks 8, it will let you generate a shopping list
    elif value == "8" or value == "eight" or value == "Eight":
        shopping = []
        shopping_cost = []
        count = 0
        shopping_total = 0

        how_many = input("How many items of shopping do you need?> ")
        how_many = int(how_many)

        for item_number in range(how_many):
            item = input("What is item number " + str(item_number + 1) + " ?> ")
            shopping.append(item)
            count = count + 1
            price = input("How much does item number " + str(item_number + 1) + " cost?> £")
            fltprice = float(price)
            shopping_cost.append(price)
            shopping_total += fltprice

        print("Shopping list:")
        for item in shopping:
            print(item)

        strcount = str(count)

        if count == 1:
            print("There is only 1 thing you need to get")
        else:
            print("There are " + strcount + " things you need to get")

        strshopping_total = str(shopping_total)
        print("Shopping total = £" + strshopping_total)
        print(" ")

    # If the person picks 9 it calculates the area of a circle using 3.142
    elif value == "9" or value == "nine" or value == "Nine":
        print("Let's calculate the area of a circle")
        rd = input("What is the radius of the circle? (in cm)> ")
        radius = int(rd)
        CircArea = math.pi * radius * radius
        StrCirc = str(CircArea)
        print("The area of this circle is " + StrCirc + "cm\u00b2" )
        print(" ")

    elif value == "10" or value == "ten" or value == "Ten":
        print("Let's find the roots of a quadratric"
        a = input("What is your coefficient of x\u00b2?> ")
        b = input("What is your coefficient of x?> ")
        c = input("What is the integer value?> ")
        inta = int(a)
        intb = int(b)
        intc = int(c)

        Discriminant = (intb*intb)-4*inta*intc

        if Discriminant > 0:
            print("There are 2 real solutions")
            print("And they are: ")

            PosRoot = ( (-intb) + math.sqrt(Discriminant) ) / ( 2 * inta )
            NegRoot = ( (-intb) - math.sqrt(Discriminant) ) / ( 2 * inta )
            strPosRoot = str(PosRoot)
            strNegRoot = str(NegRoot)

            print("Root 1> " + strPosRoot)
            print("Root 2> " + strNegRoot)
            print(" ")

        elif Discriminant == 0:
            print("There is only 1 real solution")
            print("And they are: ")

            SingRoot = ( (-intb) + math.sqrt(Discriminant) ) / ( 2 * inta )
            strSingRoot = str(SingRoot)

            print("Root - " + strSingRoot)
            print(" ")

        else:
            print("There are no real solutions")
            print(" ")

    # If the person picks 11 the program ends
    elif value == "11" or value == "eleven" or value == "Eleven":
        finished = True
        print("Bye " + user_name)
        print(" ")

    # What the person entered was invalid
    else:
        print("I'm sorry, but that isn't a valid value")
        print("Please pick a number between 1 and 10")
        print(" ")
    # If the person picks 4, then they can calculate a square number
    elif value == "4" or value == "four" or value == "Four":
        print("Let's calculate area of a square")  # n^2
        length = input("length>")
        numx = int(length)
        result = numx * numx
        sqoutput = str(result)
        print("Area of this square is = " + sqoutput)

    # If the person picks 5, then they multiply two numbers
    elif value == "5" or value == "five" or value == "Five":
        print("Let's multiply some numbers")
        input1 = input("Number 1> ")
        input2 = input("Number 2> ")
        number1 = int(input1)
        number2 = int(input2)
        result = number1 * number2
        multoutput = str(result)
        print(input1 + " x " + input2 + " = " + multoutput)

    # If the person picks 6, then they divide numbers
    elif value == "6" or value == "six" or value == "Six":
        print("Let's divide some numbers")
        input1 = input("Number 1> ")
        input2 = input("Number 2> ")
        number1 = int(input1)
        number2 = int(input2)
        if input2 == "0":
            print("Invalid solution")
        else:
            result = number1 / number2
            divoutput = str(result)
            print(input1 + " / " + input2 + " = " + divoutput)

    # If the person picks 7, this means they are able
    # to calculate averages of a set of numbers
    elif value == "7" or value == "seven" or value == "Seven":
        how_many = input("How many numbers> ")
        how_many = int(how_many)
        total = 0

        for number_count in range(how_many):
            number = input("Enter number " + str(number_count) + "> ")
            total = total + int(number)

        result = total/how_many
        print("The average = " + str(result))

    # If the person picks 8, it will let you generate a shopping list
    elif value == "8" or value == "eight" or value == "Eight":
        shopping = []
        shopping_cost = []
        count = 0
        shopping_total = 0

        how_many = input("How many items of shopping do you need?> ")
        how_many = int(how_many)

        for item_number in range(how_many):
            item = input("What is item number " + str(item_number + 1) + " ?> ")
            shopping.append(item)
            count = count + 1
            price = input("How much does item number " + str(item_number + 1) + " cost?> £")
            fltprice = float(price)
            shopping_cost.append(price)
            shopping_total += fltprice

        print("Shopping list:")
        for item in shopping:
            print(item)

        strcount = str(count)

        if count == 1:
            print("There is only 1 thing you need to get")
        else:
            print("There are " + strcount + " things you need to get")

        strshopping_total = str(shopping_total)
        print("Shopping total = £" + strshopping_total)

    elif value == "9" or value == "nine" or value == "Nine":
        finished = True
        print("Bye " + user_name)

    # What the person entered was invalid
    else:
        print("I'm sorry, but that isn't a valid value")
        print("Please pick a number between 1 and 9")