save project

diy2.py

+import turtle
+pen=turtle.Pen()
+screen=turtle.Screen()
+screen.bgcolor("black")
+color=["white","blue","violet","cyan"]
+pen.speed(180)
+for i in range(300):
+    pen.forward(i)
+    pen.color(color[i%4])
+    pen.right(91)
+pen.hideturtle()
+turtle.done()