To create a calculator in Python, Below is a simple script that can perform addition, subtraction, multiplication, and division:
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): if y == 0: return "Error: Cannot divide by zero" return x / y print("Basic Calculator") print("Select operation:") print("1. Add") print("2. Subtract") print("3. Multiply") print("4. Divide") while True: choice = input("Enter choice (1/2/3/4) or 'q' to quit: ") if choice.lower() == 'q': print("Exiting the calculator.") break if choice not in ['1', '2', '3', '4']: print("Invalid input. Please try again.") continue num1 = float(input("Enter the first number: ")) num2 = float(input("Enter the second number: ")) if choice == '1': print("Result:", add(num1, num2)) elif choice == '2': print("Result:", subtract(num1, num2)) elif choice == '3': print("Result:", multiply(num1, num2)) elif choice == '4': print("Result:", divide(num1, num2)) else: print("Invalid input. Please try again.")
Save this code in a file with a .py extension, run the script, and you'll have a basic calculator in action. It will keep asking for the user's choice until the user decides to quit by entering 'q'. The calculator handles floating-point numbers and provides a message when attempting to divide by zero.