Creating the main window: Tk().
Creation of the modal window: Toplevel().
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from tkinter import * from tkinter import ttk def popup(): info = Toplevel() # Popup -> Toplevel() info.title('Hello') Button(info, text='Quit', command=info.destroy).pack(padx=10, pady=10) info.transient(pack) #Popup reduction impossible info.grab_set() #Interaction with window impossible game pack.wait_window(info) #Stop main script pack = Tk() #Main window -> Tk() pack.title('Main window') pack.geometry('300x100') Button(pack, text='Open popup', command=popup).pack(padx=10, pady=10) pack.mainloop() #Only for the main window |
Warning: only one loop mainloop() corresponding to the main window.
The main_window_name.wait_window (popup window_name) method stops the main script until the popup window is closed.
The pop_popup.grab_set () method prevents any interaction with the main window.
