[Tutor] time delay in graphics loop

[Lloyd Kvam]

When you put the sleep inside the y loop, you sleep for 5 seconds 
everytime through the loop, = 60 seconds plus the other processing time.

Within x it is sleeping 12 * 16 * 5 which is a lot of seconds. 
presumably, it is not hung, just much slower than your patience level.

Jane Handcock wrote:

> Hi
> 
> I have just started to use Python and am working through the LiveWires
> Python Course.
> Can anyone explain why the time delay in the code below works fine (before
> the graphics window is filled with blue circles), but the program hangs if I
> put the line time.sleep(1) inside the y or x loops?
> 
> 
> from livewires import *
> import time
> begin_graphics()
> set_colour(Colour.blue)
> time.sleep(5)
> for y in range(12):
>     for x in range(16):
>         circle(x*40+20,y*40+20,20)
> end_graphics
> 
> 
> _______________________________________________
> Tutor maillist  -  Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
> 
> 


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Lloyd Kvam
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