Gedit problems with python

Question

I'm just learning Python in school and we were suppose to draw something (code it in gedit for python) on canvas (Tkinter). Instead of getting something drawn up I only get an empty canvas. It looks like this on my computer. The code is correct as I copied it from another web page.

from Tkinter import *

master=Tk()

w=Canvas(master, width=200, height=100)
w.pack

w.create_line(0,0,200,100)
w.create_line(0,100,200,0, fill="red", dash=(4,4))

w.create_rectangle(50,25,150,75, fill="blue")

mainloop()

Answer 1

Actually, the code is not correct. The person who wrote it forgot to actually call the pack method. You need to add () after it to do this:

from Tkinter import *

master=Tk()

w=Canvas(master, width=200, height=100)
########
w.pack()
########

w.create_line(0,0,200,100)
w.create_line(0,100,200,0, fill="red", dash=(4,4))

w.create_rectangle(50,25,150,75, fill="blue")

mainloop()

Otherwise, the canvas will never be placed on the window.

P.S. You should note that not everything you find on the Web is guaranteed to be correct. :)