Using Turtle

First read https://github.com/Almenon/AREPL-vscode/wiki/Using-AREPL-with-GUI's

I suggest using the following code as a base:

import turtle

turtle.reset()
turtle.speed(0) # 0 is fastest. Accepts 1-10
turtle.setup(width=700, height=500, startx=-0, starty=0)

You can make the turtle go forward and turn like so:

# Add this below the base
turtle.forward(100)
turtle.left(95)

Do that 4 times and you've got a square!

Fun fact: With enough squares, you can make a circle:

def square():
    turtle.forward(100)
    turtle.left(95)
    turtle.forward(100)
    turtle.left(95)
    turtle.forward(100)
    turtle.left(95)

for i in range(50):
    square()
    turtle.left(5)