Objective:

Create a basic calculator using Python and Tkinter that performs simple arithmetic operations like addition, subtraction, multiplication, and division.

Steps to Follow:

1. Install Tkinter:
   • Ensure that Tkinter is installed. If needed, install it using the pip install tk command.


2. Set Up the Main Window:
   • Create a main window for the calculator using Tkinter and configure its size and appearance (background color, title, etc.).


3. Create the Entry Widget:
   • Add an entry widget that will be used to display user input and the result of the calculations.


4. Define Functions for Button Actions:
   • A function that handles number and operator button clicks and updates the entry.
   • A function to clear the entry when the user presses the "C" button.
   • A function that evaluates the mathematical expression when the "=" button is pressed and displays the result in the entry.


5. Create Number and Operator Buttons:
   • Create buttons for the digits (0–9), operators (+, -, *, /), and decimal point. These buttons will be placed in a grid layout.


6. Add the "=" and "C" Buttons:
   • The "=" button should evaluate the current input and show the result.
   • The "C" button should clear the input field when pressed.


7. Make the Layout Responsive:
   • Configure the grid layout so that the buttons resize properly when the window is resized.


8. Run the Program:
   • Run the program and ensure the GUI is functioning properly.

Bonus Challenge:

Customize the calculator further by adding:

• Memory functions (M+, M-, MR, MC)
• Scientific operations like square root or exponentiation
• Enhanced design with colors, icons, or improved layout