Gerardo Juarez wrote:
> I'm having problems with a widget, which I've been able to isolate to the > following example: > > from Tkinter import * > > def display(): > global x > print x > > root = Tk() > x = 0 > check = Checkbutton(root, variable=x) > check.pack() > button = Button(text='Display variable', command=display) > button.pack() > root.mainloop() > > As far as I understand the reference, when I click the button, the > variable 'x' should reflect the state of the check button you must use a Tkinter variable object, not an arbitrary Python variable: http://effbot.org/tkinterbook/checkbutton.htm#patterns (note that in Python, the parameter expressions are *always* evaluated before the function is actually called, so "variable=x" will pass a zero to the checkbutton. you cannot pass references to variable names in Python, only references to objects). </F> _______________________________________________ Tkinter-discuss mailing list Tkinter-discuss@python.org http://mail.python.org/mailman/listinfo/tkinter-discuss
