Python Simple Calculator Script

 I have comple guide step by step to create a simple calculator using python script.

# define functions for each operation

def add(x, y):

   return x + y

def subtract(x, y):

   return x - y

def multiply(x, y):

   return x * y

def divide(x, y):

   return x / y

# take input from the user

print("Select operation:")

print("1. Add")

print("2. Subtract")

print("3. Multiply")

print("4. Divide")

choice = input("Enter choice(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))

else:

   print("Invalid input")

This code first defines four functions, one for each mathematical operation (addition, subtraction, multiplication, and division). It then prompts the user to select an operation and enter two numbers. The selected operation is performed on the numbers, and the result is printed to the screen.