How to create a calculator with python

Hey everyone! I recently learned how to create a simple calculator using Python, and I'm super excited to share my knowledge with you! In this tutorial, I'll be walking you through the steps to create a basic calculator that can perform addition, subtraction, multiplication, and division.

I'm still learning, and I'd love to hear your thoughts and feedback! Please leave your criticisms, suggestions, and questions in the comment section below. Let's learn and grow together

Step 1: Gather Your Ingredients (Install Python)

Before we start cooking, make sure you have Python installed on your computer. If not, download it from the official Python website. Easy peasy!

Step 2: Import the Secret Sauce (Import Modules)

Open your favorite text editor or IDE (Integrated Development Environment) and create a new file called calculator.py. Add the following line to import the operator module, which will help us with math operations:

import operator

Step 3: Define the Calculator Functions (Make it Happen!)

Now it's time to create the calculator functions. We'll define four basic math operations: addition, subtraction, multiplication, and division. Add the following code:

def add(x, y): return operator.add(x, y)

def sub(x, y): return operator.sub(x, y)

def mul(x, y): return operator.mul(x, y)

def div(x, y): if y == 0: return "Error: Division by zero!" return operator.truediv(x, y)

Step 4: Create the Calculator Menu (Get User Input)

Let's create a simple menu to interact with our calculator. Add the following code:

def calculator_menu(): print("Simple Python Calculator") print("1. Addition") print("2. Subtraction") print("3. Multiplication") print("4. Division") print("5. Quit")

choice = input("Enter your choice (1-5): ") return choice

Step 5: Get User Input and Perform Calculations (Make it Interactive!)

Now it's time to get user input and perform calculations. Add the following code:

def main(): while True: choice = calculator_menu() if choice == "5": print("Goodbye!") break

num1 = float(input("Enter the first number: ")) num2 = float(input("Enter the second number: "))

if choice == "1": print(f"{num1} + {num2} = {add(num1, num2)}") elif choice == "2": print(f"{num1} - {num2} = {sub(num1, num2)}") elif choice == "3": print(f"{num1} * {num2} = {mul(num1, num2)}") elif choice == "4": print(f"{num1} / {num2} = {div(num1, num2)}") else: print("Invalid choice. Please try again.")

if name == "main": main()

Step 6: Run the Calculator (Time to Play!)

Save the file and run it using Python (e.g., python calculator.py). Follow the menu prompts to perform calculations. Have fun!

That's it! You now have a simple Python calculator.