Unable to draw a line slowly using Python tkinter

[mukund athavale]

Hi,

I want to draw a line on screen so that it gets displayed slowly from left to right.

The line is not drawn point by point after the sleep time interval. The line appears suddenly after the total time elapsed.

Increasing sleep time does not help. I have also tried the "after" command but does not help.

Is there any simple solution ?

I have used following code.

# my code

import time
from tkinter import *
mywindow = Tk()

mywindow.minsize( width=600,height=600)
mycanvas = Canvas(mywindow, width=500, height=500, background = "yellow")
mycanvas.place(x=50, y = 0)

startx = 1

for i in range (1,500,10):
    mycanvas.create_line(startx,100,i,100 )
    startx = i
    time.sleep(0.010)

mc.mainloop()

Mukund Athavale

Mumbai, India

[paul kairis]

I'm using Spyder 3.2.6 ... added mywindow.update() inside the loop

# my code
import tkinter as tk
import time

mywindow = tk.Tk()
mywindow.minsize(width=600,height=600)

mycanvas = tk.Canvas(mywindow, width=500, height=500, background = "yellow")

mycanvas.place(x=50, y = 0)

startx = 1

for i in range (1,500,10):
    mycanvas.create_line(startx,100,i,100 )
    startx = i
    time.sleep(0.010)

    mywindow.update()

tk.mainloop()

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