old_contents: import unittest
  
  import numpy as np
  from scipy.sparse import csr_matrix, lil_matrix
  from Orange import data
  
  from Orange.tests import test_table as tabletests
  
  
  class InterfaceTest(tabletests.InterfaceTest):
      def setUp(self):
          super().setUp()
          self.table = data.Table.from_numpy(
              self.domain,
              csr_matrix(self.table.X),
              csr_matrix(self.table.Y),
          )
  
      def test_append_rows(self):
          with self.assertRaises(ValueError):
              super().test_append_rows()
  
      def test_insert_rows(self):
          with self.assertRaises(ValueError):
              super().test_insert_rows()
  
      def test_delete_rows(self):
          with self.assertRaises(ValueError):
              super().test_delete_rows()
  
      def test_clear(self):
          with self.assertRaises(ValueError):
              super().test_clear()
  
      def test_row_assignment(self):
          with self.assertRaises(ValueError):
              super().test_row_assignment()
  
      def test_value_assignment(self):
          with self.assertRaises(ValueError):
              super().test_value_assignment()
  
new_contents: from scipy.sparse import csr_matrix
  
  from Orange import data
  from Orange.tests import test_table as tabletests
  
  
  class InterfaceTest(tabletests.InterfaceTest):
      def setUp(self):
          super().setUp()
          self.table = data.Table.from_numpy(
              self.domain,
              csr_matrix(self.table.X),
              csr_matrix(self.table.Y),
          )
  
      def test_append_rows(self):
          with self.assertRaises(ValueError):
              super().test_append_rows()
  
      def test_insert_rows(self):
          with self.assertRaises(ValueError):
              super().test_insert_rows()
  
      def test_delete_rows(self):
          with self.assertRaises(ValueError):
              super().test_delete_rows()
  
      def test_clear(self):
          with self.assertRaises(ValueError):
              super().test_clear()
  
      def test_row_assignment(self):
          with self.assertRaises(ValueError):
              super().test_row_assignment()
  
      def test_value_assignment(self):
          with self.assertRaises(ValueError):
              super().test_value_assignment()
  
subject: Optimize imports.