calculator.py

print("Welcome to Calculator Project")
print("1. Addittion")
print("2. Subtraction")
print("3. Multiplication")
print("4. Division")

option = int(input("Select an option for Basic Calculator Operation: "))

if option == 1:
    n1 = int(input ("Enter 1st number: "))
    n2 = int(input ("Enter 2nd number: "))
    n3 = n1 + n2
    print("Addition is: "+ str(n3))
elif option == 2:
    n1 = int(input ("Enter 1st number: "))
    n2 = int(input ("Enter 2nd number: "))
    n3 = n1 - n2
    print("Subtraction is: "+ str(n3))
elif option == 3:
    n1 = int(input ("Enter 1st number: "))
    n2 = int(input ("Enter 2nd number: "))
    n3 = n1 * n2
    print("Multiplication is: "+ str(n3))
elif option == 4:
    n1 = int(input ("Enter 1st number: "))
    n2 = int(input ("Enter 2nd number: "))
    n3 = n1 / n2
    print("Division is: "+ str(n3))
else:
    print("Invalid Input")