save project

da4.py

+import turtle
+pen=turtle.Pen()
+screen=turtle.Screen()
+screen.bgcolor("black")
+colors=["red",'orange','yellow','green',]
+for i in range(1,300):
+    pen.pencolor(colors[i%4])
+    pen.forward(i)
+    pen.right(91)
+turtle.done()
\ No newline at end of file