Building a Calculator in Python

A sleek, functional graphical calculator built using Python’s Turtle graphics module and Tkinter.

This project demonstrates how to create a custom user interface, handle click events, and perform mathematical evaluations in a visual environment.

Features
• Custom GUI: A completely custom-drawn interface using Turtle graphics.

• Dynamic Styling: Color-coded buttons (White for numbers, Green for operators, Pink for equals).

• Interactive Input: Full support for mouse-click interactions.

• Math Logic: Handles addition, subtraction, multiplication, division, and parentheses using Python's evaluation logic.

• Smart Display: Includes an "Error" catch for invalid equations and a character limit with truncation to keep the display clean.

• Icon Support: Built-in support to display a custom icon.png in the window title bar.

Prerequisites
• Installation:
Python 3.x

• Run the script:
python calculator.py

How it Works
The application uses two separate Turtle objects to manage the experience:

• The Drawer: Responsible for rendering the static UI elements like buttons and the display box.

• The Display Pen: Responsible for updating the text on the screen every time a button is pressed.

• Button Hitbox Logic: Since Turtle graphics don't have built-in buttons, this script uses coordinate mapping.

Every button's (x, y) boundaries are stored in a list. When you click, the script checks if your mouse coordinates fall within any of those stored boundaries.


Usage Note
The calculator uses Python's eval() function to calculate results.

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