GUI Tk Python

from Tkinter import * 
class ScrolledList(Frame):
    def __init__(self, options, parent=None):
        Frame.__init__(self, parent)
        self.pack(expand=YES, fill=BOTH)                  
        self.makeWidgets(options)
        
    def handleList(self, event):
        index = self.listbox.curselection()            
        label = self.listbox.get(index)                
        self.runCommand(label)                         
    def makeWidgets(self, options):                    
        sbar = Scrollbar(self)
        list = Listbox(self, relief=SUNKEN)
        sbar.config(command=list.yview)                
        list.config(yscrollcommand=sbar.set)              
        sbar.pack(side=RIGHT, fill=Y)                     
        list.pack(side=LEFT, expand=YES, fill=BOTH)    
        pos = 0
        for label in options:                          
            list.insert(pos, label)                    
            pos = pos + 1
        list.bind('', self.handleList)       
        self.listbox = list
    def runCommand(self, selection):                   
        print 'You selected:', selection
if __name__ == '__main__':
    options = map((lambda x: 'Lumberjack-' + str(x)), range(20))
    ScrolledList(options).mainloop()