write a program to make a mini calculator in python.

 # Mini Calculator

# Function to add two numbers

def add(num1, num2):

    return num1 + num2

# Function to subtract two numbers

def subtract(num1, num2):

    return num1 - num2

# Function to multiply two numbers

def multiply(num1, num2):

    return num1 * num2

# Function to divide two numbers

def divide(num1, num2):

    return num1 / num2

# Main program

print("Welcome to the Mini Calculator!")

print("Select an operation:")

print("1. Addition")

print("2. Subtraction")

print("3. Multiplication")

print("4. Division")

# Get user input for operation

operation = int(input("Enter your choice (1-4): "))

# Get user input for numbers

number1 = float(input("Enter the first number: "))

number2 = float(input("Enter the second number: "))

# Perform the selected operation

if operation == 1:

    result = add(number1, number2)

    operator = "+"

elif operation == 2:

    result = subtract(number1, number2)

    operator = "-"

elif operation == 3:

    result = multiply(number1, number2)

    operator = "*"

elif operation == 4:

    result = divide(number1, number2)

    operator = "/"

else:

    print("Invalid operation!")

    exit()

# Print the result

print("Result: {} {} {} = {}".format(number1, operator, number2, result))