      "\n",
      "    def run_test(self, input_set, expected):\n",
      "        combinatoric = Combinatoric()\n",
      "        result = combinatoric.find_power_set_recursive(input_set)\n",
      "        assert_equal(result, expected)\n",
      "        result = combinatoric.find_power_set_iterative(input_set)\n",
      "        assert_equal(result, expected)\n",
      "\n",
      "\n",
      "def main():\n",
 
</s> remove     "        assert_equal(result, expected)\n",
 </s> add     "        self.assertEqual(result, expected)\n", </s> remove     "        assert_equal(result, expected)\n",
 </s> add     "        self.assertEqual(result, expected)\n", </s> remove         assert_equal(result, expected)
 </s> add         self.assertEqual(result, expected) </s> remove     "        assert_equal(result, None)\n",
 </s> add     "        self.assertEqual(result, None)\n", </s> remove     "        assert_equal(result, None)\n",
 </s> add     "        self.assertEqual(result, None)\n",
    "        self.assertEqual(result, expected)\n",
      "\n",
      "    def run_test(self, input_set, expected):\n",
      "        combinatoric = Combinatoric()\n",
      "        result = combinatoric.find_power_set_recursive(input_set)\n",
    "        self.assertEqual(result, expected)\n",
      "        result = combinatoric.find_power_set_iterative(input_set)\n",
      "        assert_equal(result, expected)\n",
      "\n",
      "\n",
      "def main():\n",
keep keep keep keep replace keep keep keep keep keep
 #273: Remove nose dependency for recursion_dynamic/ (#280) 
recursion_dynamic/power_set/power_set_challenge.ipynb