First window: Tk()
Every Tkinter app starts by creating Tk. That is the root window. Without it, you have nowhere to put buttons. Usually there is only one Tk per app. For a second window (e.g. a dialog), use Toplevel.
Content is available with subscription.
Get full access to all courses on the platform for one year with a single payment.
▼
Unlike other platforms that charge per course, here you get everything for one price, and after one year of use there will be no automatic charge for the following year.