Fix #1771558 (already fixed in trunk).

Lib/lib-tk/turtle.py

@@ -15,6 +15,7 @@ pictures can easily be drawn.
 """
 
 from math import * # Also for export
+from time import sleep
 import Tkinter
 
 speeds = ['fastest', 'fast', 'normal', 'slow', 'slowest']
@@ -949,7 +950,6 @@ def demo2():
 
 
 if __name__ == '__main__':
-    from time import sleep
     demo()
     sleep(3)
     demo2()