from tkinter import *                        #importing tkinter
from tkinter import messagebox as msg        #importing messagebox

root = Tk()

#Defining a callback function

def popup():                                 
   info = msg.showinfo("This is my popup!", "Hello world")                  
#first argument is the title, second is the text

#Button that calls the popup function

my_button = Button(root, text = "Pop up", command = popup).pack()                  
root.mainloop()

from tkinter import *                        #importing tkinter
from tkinter import messagebox as msg        #importing messagebox

root = Tk()

def popup():                                 #Defining a callback function

    #first argument is the title, second is the text

   response = msg.askyesno("Pop up", "Would you like to see some cautionary rules before using your program?")          
   if (response == True):
        rules = Label(root, text = "You should always double check your code")
        rules.pack()



#Button that calls the popup function
my_button = Button(root, text = "Pop up", command = popup).pack()                

root.mainloop()

from tkinter import *
from tkinter import messagebox as msg 

root = Tk()                  #Creating the root window

root.withdraw()              #Getting rid of the root window

messagebox = msg.showinfo("Title", "This is an independent messagebox")

root.mainloop()

from tkinter import *

root = Tk()
root.title("Title for my program")
root.geometry("400x200")

root.mainloop()

from tkinter import *

root = Tk()
root.title("Title for my program")
root.geometry("400x200")
root.iconbitmap("icon.ico")

root.mainloop()

from tkinter import *

root = Tk()
root.title("Title for my program")
root.iconbitmap("icon.ico")

#defining a variable to set value of entry box
v = StringVar()

#Defining a callback function for set_from_spin
def set_from_spin():
    v.set(spin.get())

#defining submit function
def submit():
    show_Label = Label(root, text = "You selected " + enter.get())
    show_Label.grid(row = 3, column = 1, pady = 8)

info_label = Label(root, text = "You can enter a value between 0 and 10 or you can select one using the spin box and click on the button to enter")
info_label.grid(row = 0, column = 0, columnspan = 3, pady = 8, padx = 5)

#Spinbox
spin = Spinbox(root, from_= 0, to = 10, width = 10, bd = 6)  #bd is borderwidth
                                                   #width is the spinbox width
spin.grid(row = 1, column = 0)

#Entry label
enter = Entry(root, textvariable = v)
enter.grid(row = 1, column = 1)

btn_set = Button(root, text = "Set value", command = set_from_spin)
btn_set.grid(row = 1, column = 2)

btn_submit = Button(root, text = "Submit", command = submit, width = 10).grid(row = 2, column = 1, pady = 10)

root.mainloop()