save project

diy1.py

+import turtle
+pen=turtle.Pen()
+pen.speed(0)
+turtle.bgcolor("black")
+
+color=["green","blue","yellow","red"]
+
+
+for i in range(1,500,1):
+    pen.color(color[i%4])
+    pen.forward(i)
+    pen.left(91)
+    
+turtle.done()    
+
+
+