[Tutor] turtle module

[Guillermo Fernandez]

Hi,

I'm learning tk, and I've started with the turtle module. My problem is
that the documentation says:
"The procedural interface uses a pen and a canvas which are
automagically created when any of the functions are called."
but this canva (the window where the turtle is supposed to draw) only
last for 1/2 of second, and the turtle documentation does not propose
any function to make the image stay longuer.

How could I make this window stay longuer?

Thanks,

Guille