Question

########### Homework 20
##################################

###################################################
#### Rewrite this code in 'class mode' : define the class and so on....
#### If you can - try make a clicked button 'blue'.
#### (Only if you can.)

from tkinter import *
abc = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

def callback(x):
label.configure(text = 'Button {} clicked'. format(abc[x]))

root = Tk()

label = Label()
label.grid(row = 1, column = 0, columnspan = 26)

buttons = [0]*26 ##create a list to hold 26 buttons
for i in range(26):
buttons[i] = Button(text = abc[i],
command = lambda x = i: callback(x))
buttons[i].grid(row = 0, column = i)

mainloop()

Answer 1

In case of any query, do comment. Please rate the answer.

Note: While copying the code from Chegg Windows, adds some extra characters and it disturbs the indentation as well. Please be cautious while copying. Please refer the screen shot of the code for indentation of the code.

Code:

from tkinter import *

root = Tk()

class click_buttons:

    #constructor of click_buttons

    def __init__(self):

        #atatch labels, buttons to class using self

        self.label = Label()

        self.abc = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

        self.label.grid(row = 1, column = 0, columnspan = 26)

        self.buttons = [0]*26 ##create a list to hold 26 buttons

        for i in range(26):

            #assign callback functions

            self.buttons[i] = Button(text = self.abc[i],

            command = lambda x = i: self.callback(x))

            self.buttons[i].grid(row = 0, column = i)

    #callback method for button click

    def callback(self,x):

        self.label.configure(text = 'Button {} clicked'. format(self.abc[x]))

        self.buttons[x].configure(bg="blue")

#create a object of the click_buttons class

click = click_buttons()

mainloop()

=========screen shot of the code for indentation=============

Output: