1 files changed, 1 insertions, 1 deletions
diff --git a/TurtleArt/sprites.py b/TurtleArt/sprites.py
index 989b129..f85458d 100644
--- a/TurtleArt/sprites.py
+++ b/TurtleArt/sprites.py
@@ -151,7 +151,7 @@ class Sprites:
             print 'sprites.redraw_sprites: no Cairo context'
             return
         for spr in self.list:
-            if area == None:
+            if area is None:
                 spr.draw(cr=cr)
             else:
                 intersection = spr.rect.intersect(area)