Tkinter Button exercise solutions

#increase and decrease button size
import tkinter as tk
my_w=tk.Tk()
my_w.geometry('400x300')

def my_fun(todo):
    w=b2.cget('width')
    if(todo=='increase'):
       w=w+5
    else:
       w=w-5
    b2.config(width=w) # Update the width option 
    
b1=tk.Button(my_w,text='+',width=5,font=18,bg='yellow',
    command=lambda: my_fun('increase'))
b1.grid(row=1,column=1,padx=5,pady=30)
b2=tk.Button(my_w,text='Close',width=10,bg='Green',fg='white',
    command=my_w.destroy)
b2.grid(row=1,column=3)
b3=tk.Button(my_w,text='-',width=5,font=18,bg='yellow',
    command=lambda: my_fun('decrease'))
b3.grid(row=2,column=1)
my_w.mainloop()

#change the Colour of a button 
import tkinter as tk
my_w = tk.Tk()
my_w.geometry("600x200")  

def my_upd(c_type):
    b_c.config(bg=c_type)
    
b_c=tk.Button(my_w,text='Close',width=10,command=my_w.destroy)
b_c.grid(row=1,column=2)    
    
b1 = tk.Button(my_w, text='Yellow', width=10,bg='yellow',command=lambda: my_upd('yellow'))
b1.grid(row=1,column=1) 

b2 = tk.Button(my_w, text='Blue', width=10,bg='blue',command=lambda: my_upd('blue'))
b2.grid(row=2,column=1) 

b3 = tk.Button(my_w, text='Green', width=10,bg='green',command=lambda: my_upd('green'))
b3.grid(row=3,column=1) 

b4 = tk.Button(my_w, text='Red', width=10,bg='red',command=lambda: my_upd('red'))
b4.grid(row=4,column=1) 

my_w.mainloop()

#change the mouseover cursor style
import tkinter as tk
my_w = tk.Tk()
my_w.geometry("600x200")  

def my_upd(c_type):
    b6.config(cursor=c_type)
    
b1 = tk.Button(my_w, text='Circle', width=10,bg='yellow',command=lambda: my_upd('circle'))
b1.grid(row=1,column=1) 

b2 = tk.Button(my_w, text='Arrow', width=10,bg='blue',command=lambda: my_upd('arrow'))
b2.grid(row=2,column=1) 

b3 = tk.Button(my_w, text='sailboat', width=10,bg='green',command=lambda: my_upd('sailboat'))
b3.grid(row=3,column=1) 

b4 = tk.Button(my_w, text='hand1', width=10,bg='yellow',command=lambda: my_upd('hand1'))
b4.grid(row=4,column=1) 

b5 = tk.Button(my_w, text='hand2', width=10,bg='blue',command=lambda: my_upd('hand2'))
b5.grid(row=5,column=1) 

b6 = tk.Button(my_w, text='Close', width=10,bg='red',command=my_w.destroy)
b6.grid(row=1,column=2) 

my_w.mainloop()

import tkinter  as tk 
from datetime import date
my_w = tk.Tk()
my_w.geometry("350x300") # change width height 

def my_upd():
    dt=date.today().strftime('%U') # week number as string
    if(int(dt)%2==0):
        str1="Yes" # for even week number 
    else:
        str1="No"  # for odd week number
    l1.config(text=str1) # update the text on label 
b1=tk.Button(my_w,text='Click me',command=lambda:my_upd())
b1.grid(row=1,column=1,padx=60,pady=30)        
l1=tk.Label(my_w,text='Data')
l1.grid(row=1,column=2)
my_w.mainloop()

import tkinter as tk
from tkinter import *

my_w = tk.Tk()
my_w.geometry("450x300")  # Size of the window, width & height
my_w.title("www.plus2net.com")

# Creating list from a range with start , stop and step values
my_list = list(range(10, 30, 2))
t2 = tk.IntVar()  # to store the selected value of the Spinbox
sb2 = Spinbox(
    my_w, values=my_list, width=4, textvariable=t2, font=18, command=lambda: my_upd()
)
sb2.grid(row=0, column=0, padx=20, pady=60)

b1 = tk.Button(my_w, text="Demo", font=16, width=10, bg="yellow")
b1.grid(row=0, column=1, pady=60)

def my_upd():  # Update the width of the button
    b1.config(width=t2.get())


my_w.mainloop()  # Keep the window open

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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