FL Week 2

# FutureLearn Week 1 and 2 Bot
# import the maths module to use Pi
import math

# The Bot introduces itself and waits for instructions
print("Hi, I am Marvin, your personal bot.")
print("Let's get started....")
users_name = input("Please enter your name: ")

# Marvin welcomes the user
print("Welcome " + users_name + "!")

# Marvin wants to play with maths.
# The following allows the user to enter two values to be added together
print("I can be your maths bot.")
print("lets add some numbers")
input1 = int(input("Number 1 >"))
input2 = int(input("Number 2 >"))
result = input1 + input2

# The following line uses the str.format() formatting style
# This does not require the data types to be cast
print("The addition of {} + {} gives {}".format(input1, input2, result))

# Using str.format() combined with an inline calculation
# The third value used in the str is the result of the subtraction calculation
print("Subtracting the value {} from {} gives a result of {}".format(input1, input2, input2 - input1))

print("Lets calculate the area of a square.")
side_of_a_square = float(input("Please enter the length of an edge of your square:"))
print("The area of the square with a side length of {} is {}\n"
      "If you want it as a cube the volume would be {}"
      .format(side_of_a_square, side_of_a_square*side_of_a_square, side_of_a_square**3))

# creating a menu and then carrying out the task selected.
print("How about you tell me what you would like to do?")
print("Please select from the following:\n"
      "1) Identify if a number is even or odd.\n"
      "2) Work out the area of a circle.\n")
choice = input()

confirmation = input("You selcted option {}. Was that the correct choice? enter 'Y' or 'N'.".format(choice)).upper()

# Nested ifs
if confirmation == "Y":
    if choice == "1":
        number = int(input("Please enter a number for me to confirm if it is odd or even:"))
        if number%2 == 0:
            print("Yes! {} is an even number. :)".format(number))
        else:
            print("Sorry! {} is not an even number.".format(number))

    elif choice == "2":
        print("Please enter the radius of the circle: ")
        radius = float(input())
        area_of_circle = math.pi * (radius**2)
        print("The area of the circle with radius {} is {}.".format(radius, area_of_circle))

    else:
        print("Sorry your choice was not valid. I have not learnt that skill yet.")

elif confirmation == "N":
    print("Why oh why do you let me down like this? :(")

else:
    print("Sorry you did not enter 'Y' or 'N'.")