Turtle graphics - How do I control when the window closes?

Question

I have a small python script which draws some turtle graphics. When my script has finished running, the turtle screen automatically closes, so to be able to see the graphics

Answer 1

simply use the mainloop() function imported from turtle's module itself!.

import turtle


#Draw a square
for i in range(4):
    turtle.forward(200)
    turtle.left(90)


#calling for the mainloop()
turtle.mainloop()