calculator.py

# Step 1: Get two numbers from the user
num1 = input("Enter the first number: ")
num2 = input("Enter the second number: ")

# Step 2: Convert inputs to numbers
num1 = float(num1)
num2 = float(num2)

# Step 3: Ask for the operation
operation = input("Enter an operation (+, -, *, /): ")

# Step 4: Perform the operation
if operation == "+":
    result = num1 + num2
    print(f"{num1} + {num2} = {result}")
elif operation == "-":
    result = num1 - num2
    print(f"{num1} - {num2} = {result}")
elif operation == "*":
    result = num1 * num2
    print(f"{num1} * {num2} = {result}")
elif operation == "/":
    if num2 != 0:
        result = num1 / num2
        print(f"{num1} / {num2} = {result}")
    else:
        print("Error: Cannot divide by zero.")
else:
    print("Invalid operation. Please enter +, -, * or /.")