from Tkinter import *

root = Tk()
root.option_readfile('optionDB')
root.title('Canvas Line')
canvas = Canvas(root, width =200, height=160, bg='white')
for y,w in ( (150, 15), (134, 10), (122, 5), (115, 3), (110,1), ):
    canvas.create_line(10,y,190,y, width=w)

canvas.create_line(10,100,40,95,60,98,70,100,80,94,120,102,130,100,190,100,
                   width=6)
canvas.create_line(10,80,40,75,60,78,80,80,90,70,110,82,130,80,190,80,
                   width=3)
canvas.create_line(10,50,40,45,60,48,80,50,90,40,110,52,130,50,190,50,
                   smooth=1)
canvas.pack()
root.mainloop()