matplotlib
diff --git a/‎lib/matplotlib/backends/backend_macosx.py
+1-2 b/‎lib/matplotlib/backends/backend_macosx.py
+1-2
@@ -112,11 +112,10 @@ def close(self):
 class NavigationToolbar2Mac(_macosx.NavigationToolbar2, NavigationToolbar2):
 
     def __init__(self, canvas):
-        self.canvas = canvas  # Needed by the _macosx __init__.
         data_path = cbook._get_data_path('images')
         _, tooltips, image_names, _ = zip(*NavigationToolbar2.toolitems)
         _macosx.NavigationToolbar2.__init__(
-            self,
+            self, canvas,
             tuple(str(data_path / image_name) + ".pdf"
                   for image_name in image_names if image_name is not None),
             tuple(tooltip for tooltip in tooltips if tooltip is not None))