In this article, let’s see how we can loop through the buttons in Tkinter.
Stepwise implementation:
Step 1: Import the Tkinter package and all of its modules and create a root window (root = Tk()).
Python3# Import package and it's modulesfromtkinterimport*# create root windowroot=Tk()# root window title and dimensionroot.title("GeekForGeeks")# Set geometry (widthxheight)root.geometry('400x400')# Execute Tkinterroot.mainloop()Output
Step 2:Now let's add aEntry() class and will display the button name as soon as one of the buttons is clicked.
Python3# Import package and it's modulesfromtkinterimport*# create root windowroot=Tk()# root window title and dimensionroot.title("GeekForGeeks")# Set geometry (widthxheight)root.geometry('400x400')# Entry Boxtext=Entry(root,width=30,bg='White')text.pack(pady=10)# Execute Tkinterroot.mainloop()Output
Step 3:Now let's create an empty dictionary (button_dict) to save all the button objects and a list consisting of names of all the buttons. Now loop over each item of the list to create anbutton object of it and store it in the dictionary. For the button command, create a function named 'action' and for each button call thetext_update() function to update the changes in the entry in Entry() object created earlier.
Python3# Import package and it's modulesfromtkinterimport*# text_update functiondeftext_updation(language):text.delete(0,END)text.insert(0,language)# create root windowroot=Tk()# root window title and dimensionroot.title("GeekForGeeks")# Set geometry (widthxheight)root.geometry('400x400')# Entry Boxtext=Entry(root,width=30,bg='White')text.pack(pady=10)# create buttonsbutton_dict={}words=["Python","Java","R","JavaScript"]forlanginwords:# pass each button's text to a functiondefaction(x=lang):returntext_updation(x)# create the buttonsbutton_dict[lang]=Button(root,text=lang,command=action)button_dict[lang].pack(pady=10)# Execute Tkinterroot.mainloop()Output
