save project

diy1.py

+import turtle
+pen=turtle.Pen()
+screen=turtle.Screen()
+screen.bgcolor("black")
+list=["red","yellow","blue","green"] 
+pen.speed(100)
+for i in range(300):
+    pen.color(list[i%4])
+    pen.forward(i)
+    pen.left(91)
+pen.hideturtle()