save project

diy1.py

+import turtle
+color=["red","yellow","green","orange"]
+screen=turtle.Screen()
+screen.bgcolor("black")
+pen=turtle.Pen()
+pen.speed(20)
+a=1
+for i in range(1,1000):
+    pen.pencolor(color[i%4])
+    pen.forward(a)
+    pen.right(91)
+    a+=1
+turtle.hideturtle()
+turtle.done()
+
+    
\ No newline at end of file