here is my program:
from Tkinter import *
def helloButton():
    print 'hello button'
    root.quit
root = Tk()
Button(root,text = 'Hello Button',command = helloButton).pack()
root.mainloop()

when i click on my  button,print is ok,why  root.quit have no effect?

Hi,

root.quit is a reference to object field but not a quit() method.
Try using root.quit() This should resolve an issue.

--
Regards,

Igor Novikov
sK1 Project
http://sk1project.org

it's so strage for me to understand
code1
import Tkinter
top=Tkinter.Tk()
button=Tkinter.Button(top,text = 'Hello Button',command = top.quit)
button.pack()
top.mainloop()

code1 can run ,when you click button ,it will quit

code2
import Tkinter
top=Tkinter.Tk()
button=Tkinter.Button(top,text = 'Hello Button',command = top.quit())
button.pack()
top.mainloop()


code2 can run too ,but when you click button,it will  not  quit.

what is the difference  between  quit and quit() ??

i am sitll confused,please  see the following

in my computer ,xrandr:
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 8192 x 8192
i want to konw how can   matplotlab  draw  (x,y)  which has  2000  pairs or more  (x,y)  data??

code1
from Tkinter import *
root = Tk()
def callback(event):
    print "i am here"
   
frame = Frame(root, width=100, height=100)
frame.bind("<Return>", callback)
frame.pack()
root.mainloop()

when  i press  "enter",there is no output  "i am here"
code2
from Tkinter import *
root = Tk()
def callback(event):
    print "i am here"
   
frame = Frame(root, width=100, height=100)
frame.bind("<Key>", callback)
frame.pack()
root.mainloop()

when  i press  any key ,there is no output  "i am here"