Python-basic-calculator-project

A clean, beginner-friendly console-based calculator built with Python. This project performs basic arithmetic operations — addition, subtraction, multiplication, and division — while handling common errors gracefully.

Perfect for learning core Python concepts like user input, conditionals, loops, type conversion, and basic error handling.

Features

• Add, subtract, multiply, and divide two numbers
• Supports both integers and decimal (floating-point) numbers
• Prevents division by zero with a friendly error message
• Handles invalid inputs (e.g., letters instead of numbers)
• Option to perform multiple calculations in one session

Concepts Practiced

• input() and print()
• Type conversion (int())
• Conditional statements (if-elif-else)
• Loops (while)
• Error handling (try-except, ValueError, ZeroDivisionError)
• f-strings and output formatting
• Basic program flow and user experience

How to Run

1. Make sure you have Python 3 installed
2. Clone or download this repository
3. Open terminal/command prompt in the project folder
4. Run the script:

python calculator.py

(Or whatever you named the file — e.g., python main.py)

Example Usage

Enter first number: 15.5
Enter second number: 4
Choose operation (+, -, *, /): /
15.5 / 4 = 3.875

Do you want to calculate again? (y/n): n
Thanks for using the calculator!

Future Improvements (Ideas)

• Add support for more operations (%, **, sqrt)
• Include a calculation history
• Build a GUI version with Tkinter
• Add keyboard shortcuts or menu navigation

License

MIT License — feel free to use, modify, and share!

Made with love by [Your Name] — learning Python one project at a time!

Happy coding!