from Tkinter import * 

class ScrolledCanvas(Frame):
    def __init__(self, parent=None, color='brown'):
        Frame.__init__(self, parent)
        self.pack(expand=YES, fill=BOTH)                  # make me expandable
        canv = Canvas(self, bg=color, relief=SUNKEN)
        canv.config(width=300, height=200)                # display area size
        canv.config(scrollregion=(0,0,300, 1000))         # canvas size corners
        canv.config(highlightthickness=0)                 # no pixels to border

        sbar = Scrollbar(self)
        sbar.config(command=canv.yview)                   # xlink sbar and canv
        canv.config(yscrollcommand=sbar.set)              # move one moves other
        sbar.pack(side=RIGHT, fill=Y)                     # pack first=clip last
        canv.pack(side=LEFT, expand=YES, fill=BOTH)       # canv clipped first

        for i in range(10):
            canv.create_text(150, 50+(i*100), text='spam'+str(i), fill='beige')
        canv.bind('<Double-1>', self.onDoubleClick)       # set event handler
        self.canvas = canv
    def onDoubleClick(self, event):                  
        print event.x, event.y
        print self.canvas.canvasx(event.x), self.canvas.canvasy(event.y)

if __name__ == '__main__': ScrolledCanvas().mainloop()