Python 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)] on win32
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>>> import turtle
>>> def draw_square(side length):
	
SyntaxError: invalid syntax
>>> def draw_square(side_length):
	for i in range(4):
		turtle.forward(side_length)
		turtle.left(90)

		
>>> counter=0
>>> while counter<90:
	draw_square(100)
	turtle.right(4)
	counter+=1

	
>>> turtle.exitonclick()

>>> 
