auto save

x.py

+import turtle as t
+pen = t.Pen()
+sc = t.Screen()
+sc.bgcolor('black')
+col=['red','orange','light blue','pink']
+for i in range(1,300):
+    pen.color(col[i%4])
+    pen.forward(i)
+    pen.right(91)
+pen.hideturtle()
+t.done()
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