      "        bits = Bits()\n",
      "        a = int('11101', base=2)\n",
      "        b = int('01111', base=2)\n",
      "        expected = 2\n",
      "        assert_equal(bits.bits_to_flip(a, b), expected)\n",
      "        print('Success: test_bits_to_flip')\n",
      "\n",
      "\n",
      "def main():\n",
      "    test = TestBits()\n",
 
</s> remove     "        assert_equal(bits.bits_to_flip(a, b), expected)\n",
 </s> add     "        self.assertEqual(bits.bits_to_flip(a, b), expected)\n", </s> remove         assert_equal(bits.bits_to_flip(a, b), expected)
 </s> add         self.assertEqual(bits.bits_to_flip(a, b), expected) </s> remove     "class TestBits(object):\n",
 </s> add     "class TestBits(unittest.TestCase):\n", </s> remove     "class TestBits(object):\n",
 </s> add     "class TestBits(unittest.TestCase):\n", </s> remove     "        assert_equal(bits.pairwise_swap(num), expected)\n",
 </s> add     "        self.assertEqual(bits.pairwise_swap(num), expected)\n",
    "        self.assertEqual(bits.bits_to_flip(a, b), expected)\n",
      "        bits = Bits()\n",
      "        a = int('11101', base=2)\n",
      "        b = int('01111', base=2)\n",
      "        expected = 2\n",
    "        self.assertEqual(bits.bits_to_flip(a, b), expected)\n",
      "        print('Success: test_bits_to_flip')\n",
      "\n",
      "\n",
      "def main():\n",
      "    test = TestBits()\n",
keep keep keep keep replace keep keep keep keep keep
 #273: Remove nose dependency for bit_manipulation/ (#279) 
bit_manipulation/bits_to_flip/bits_to_flip_challenge.ipynb