Calculator Using Python GUI tkinter

In this tutorial, we will create a simple calculator using Python GUI library tkinter. Tkinter is a popular library for creating GUI applications in Python.

First, we need to import tkinter and create a tkinter window:

import tkinter as tk

root = tk.Tk()
root.title("Calculator")

Next, we will create the display widget to show the current calculation:

display = tk.Entry(root, width=40, borderwidth=5)
display.grid(row=0, column=0, columnspan=4, padx=10, pady=10)

Then, we will create buttons for each of the numbers and operations:

buttons = [
    '7', '8', '9', '/',
    '4', '5', '6', '*',
    '1', '2', '3', '-',
    'C', '0', '=', '+'
]

row = 1
col = 0

for button in buttons:
    tk.Button(root, text=button, padx=20, pady=10).grid(row=row, column=col, padx=5, pady=5)
    col += 1
    if col > 3:
        col = 0
        row += 1

Finally, we will add functionality to the buttons by defining functions for each operation. For example, we can create functions for addition, subtraction, multiplication, and division:

def add():
    pass

def subtract():
    pass

def multiply():
    pass

def divide():
    pass

Now, we can bind these functions to the respective buttons:

# bind functions to buttons
tk.Button(root, text='+', command=add).grid(row=1, column=3, padx=5, pady=5)
tk.Button(root, text='-', command=subtract).grid(row=2, column=3, padx=5, pady=5)
tk.Button(root, text='*', command=multiply).grid(row=3, column=3, padx=5, pady=5)
tk.Button(root, text='/', command=divide).grid(row=4, column=3, padx=5, pady=5)

That’s it! Now we have a simple calculator using Python GUI tkinter. You can further customize the layout and functionality according to your needs.