Тинтер максимизирует окно
import Tkinter
MyRoot = Tkinter.Tk()
MyRoot.state("zoomed")
MyRoot.mainloop()
Elegant Elk
import Tkinter
MyRoot = Tkinter.Tk()
MyRoot.state("zoomed")
MyRoot.mainloop()
root.state('zoomed')screen_width, screen_height = root.winfo_screenwidth(), root.winfo_screenheight()
root.geometry("{}x{}".format(screen_width, screen_height))root = Tk()
w, h = root.winfo_screenwidth(), root.winfo_screenheight()
root.geometry("%dx%d+0+0" % (w, h))