Question

Create a python package named calculator, containing a
module named Maths.py with functions that helps to add, subtract, multiply and
divide. Create another file named
operation.py outside the folder and import package calculator and make use of
the functions included in the calculator package. Write a complete program that includes
invocation of the function.

Answer 1

Explanation:

print("Select operation.")

print("1.Add")

print("2.Subtract")

print("3.Multiply")

print("4.Divide")

while True:

# Take input from the user

choice = input("Enter choice(1/2/3/4): ")

# Check if choice is one of the four options

if choice in ('1', '2', '3', '4'):

num1 = float(input("Enter first number: "))

num2 = float(input("Enter second number: "))

if choice == '1':

print(num1, "+", num2, "=", add(num1, num2))

elif choice == '2':

print(num1, "-", num2, "=", subtract(num1, num2))

elif choice == '3':

print(num1, "*", num2, "=", multiply(num1, num2))

elif choice == '4':

print(num1, "/", num2, "=", divide(num1, num2))

break

else:

print("Invalid Input")