from Tkinter import *
root = Tk()
scrollbar = Scrollbar(root)
scrollbar.pack(side=RIGHT, fill=Y)
mylist = Listbox(root, yscrollcommand=scrollbar.set)
for line in range(100):
mylist.insert(END, "This is line number " + str(line))
mylist.pack(side=LEFT, fill=BOTH)
scrollbar.config(command=mylist.yview)
mainloop()