Merge pull request #2384 from jerneju/type-scatterplot-features

[FIX] Scatter Plot: features and no data

Author: kernc

Orange/widgets/visualize/owscatterplot.py

@@ -401,7 +401,7 @@ def set_subset_data(self, subset_data):
     def handleNewSignals(self):
         self.graph.new_data(self.sparse_to_dense(self.data_metas_X),
                             self.sparse_to_dense(self.subset_data))
-        if self.attribute_selection_list and \
+        if self.attribute_selection_list and self.graph.domain and \
                 all(attr in self.graph.domain
                         for attr in self.attribute_selection_list):
             self.attr_x = self.attribute_selection_list[0]

Orange/widgets/visualize/tests/test_owscatterplot.py

@@ -284,6 +284,14 @@ def test_sparse(self):
         self.assertTrue(data.is_sparse())
         self.assertEqual(len(data.domain), 5)
 
+    def test_features_and_no_data(self):
+        """
+        Prevent crashing when features are sent but no data.
+        GH-2384
+        """
+        domain = Table("iris").domain
+        self.send_signal(self.widget.Inputs.features, domain)
+
 
 if __name__ == "__main__":
     import unittest