Welcome to the Python Calculator tutorial! This guide will walk you through creating a simple calculator using Python. 🧮

🛠️ Step-by-Step Guide

1. Set Up Your Environment

Start by ensuring Python is installed on your system. You can check this by running: 

python --version

If you need help installing Python, visit our Python Basics tutorial.

2. Basic Arithmetic Operations

Create a script to handle addition, subtraction, multiplication, and division: 

def calculate(operation, num1, num2):
    if operation == '+':
        return num1 + num2
    elif operation == '-':
        return num1 - num2
    elif operation == '*':
        return num1 * num2
    elif operation == '/':
        return num1 / num2
    else:
        return "Invalid operation"

# Example usage
result = calculate('+', 5, 3)
print(result)
Python Environment

3. User Input Handling

Modify the code to accept user input via the command line: 

operation = input("Enter operation (+, -, *, /): ")
num1 = float(input("Enter first number: "))
num2 = float(input("Enter second number: "))
Calculator Interface

4. Error Handling

Add checks for division by zero and invalid inputs: 

if num2 == 0 and operation == '/':
    return "Division by zero is not allowed"
Error Handle

5. Expand Functionality

Enhance your calculator with advanced features like exponentiation or modulo: 

elif operation == '**':
    return num1 ** num2
elif operation == '%':
    return num1 % num2
Advanced Functions

📘 Further Learning

For more Python projects, check out our Python Data Structures tutorial. Happy coding! 🚀