OwPythagorasTree: Fix redraw crash when no data

biolab · Apr 27, 2019 · b052335 · b052335
1 parent 70e9330
commit b052335
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/Orange/widgets/visualize/owpythagorastree.py b/Orange/widgets/visualize/owpythagorastree.py
@@ -224,6 +224,8 @@ def update_size_calc(self):
         self.invalidate_tree()
 
     def redraw(self):
+        if self.data is None:
+            return
         self.tree_adapter.shuffle_children()
         self.invalidate_tree()