Calculator.py

A clean, intuitive calculator built with Python and Tkinter. It supports basic arithmetic and essential functions like square and square root — perfect for everyday use or as a lightweight replacement for your system's default calculator.

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Features

• ➕ Addition, ➖ Subtraction, ✖️ Multiplication, ➗ Division
• 🟰 Square and square root functions
• 🎨 Simple, user-friendly GUI
• ⌨️ Keyboard and mouse input support
• 🖼️ Customizable layout and styling

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📦 Installation

Requirements

• Python 3.7 or higher
• Tkinter (usually included with Python)

Steps

1. Clone the repository:

   git clone https://github.com/Paddywelch117/Calculator-App
   

2. Navigate to the project folder:

   cd Calculator-App
   

3. Run the calculator:

   python Calculator.py
   

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Preview

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🖥️ Set as Default Calculator App

You can replace your system's default calculator with Calculator.py using the steps below.

🔹 Windows

1. Create a shortcut:

   • Right-click Calculator.py → Send to → Desktop (create shortcut)
   • Rename the shortcut to Calculator

2. Change default app:

   • Go to Settings → Apps → Default apps
   • Scroll to Calculator and click it
   • Choose Look for an app on this PC
   • Browse to your Python executable (e.g., C:\Python39\python.exe)
   • Select it and confirm

3. Associate .py files with Python (if needed):

   • Right-click any .py file → Open with → Choose another app → Select Python
   • Check Always use this app

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🔹 macOS

1. Create an Automator app:

   • Open Automator → New Document → Choose Application
   • Add a Run Shell Script action with:

     python3 /path/to/Calculator.py

   • Save as Calculator.app

2. Replace default shortcut:

   • Rename the Automator app to Calculator
   • Move it to /Applications
   • Remove the default Calculator from the Dock and add your version

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🔹 Linux (Ubuntu/Debian)

1. Create a desktop entry:

   • Create a file named calculator.desktop in ~/.local/share/applications/:

     [Desktop Entry]
     Name=Calculator
     Exec=python3 /path/to/Calculator.py
     Icon=accessories-calculator
     Type=Application
     Categories=Utility;

2. Set as default:

   • Use xdg-mime to associate calculator MIME types:

     xdg-mime default calculator.desktop application/x-calculator

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🧠 Author

Created by Patrick Welch — pragmatic, detail-oriented, and passionate about clarity, optimization, and sharing knowledge through clean technical design.

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📬 Feedback & Contributions

Feel free to fork, improve, or suggest features via pull requests or issues. Let’s make this calculator even better together!

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📈 Version

Current Version: 1.0.0
Status: Stable release

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💡 Future Enhancements

• Add calculation history
• Support scientific functions (trigonometry, logarithms)
• Theme customization
• Export results to text or CSV

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