I assume that you create the two windows through two different calls to Tkinter.Tk() but you cannot enter two mainloops (at least not in a normal way).
If you want a second window use the Toplevel widget. Try the following, it does what you want: import Tkinter root = Tkinter.Tk() my_text = Tkinter.StringVar(root) another_window = Tkinter.Toplevel() entry = Tkinter.Entry(root, textvar=my_text) entry.pack() label = Tkinter.Label(another_window, textvar=my_text) label.pack() root.mainloop() In the above example, whatever you type in the entry widget in the root window gets reflected in the label widget which is inside the second window, the one that was created with Tkinter.Toplevel(). Hope it helps, John -- http://mail.python.org/mailman/listinfo/python-list
