Day 21 – Advanced Calculator App in Python
Welcome back, developers!
Today in Day 21, we are building a beautiful, modern, interactive Calculator App in Python using Tkinter.
This is not just a simple calculator — we have upgraded it with:
✔ Stylish dark-theme UI
✔ Professionally aligned buttons
✔ Clear screen feature
✔ Error handling
✔ Square, modulus, divide, multiply, add, subtract
✔ Real GUI design principles
✔ Smooth user experience
✔ Looks like a real calculator app!
This project is perfect for beginners learning GUI development and great for your résumé, portfolio, or college mini project.
🔧 Tech Used:
Python, Tkinter, Custom Styling, Layout Management
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