      }
     ],
     "source": [
      "%%writefile test_coin_change_ways.py\n",
      "from nose.tools import assert_equal\n",
      "\n",
      "\n",
      "class Challenge(object):\n",
      "\n",
      "    def test_coin_change_ways(self,solution):\n",
 
</s> remove     "from nose.tools import assert_equal\n",
 </s> add     "import unittest\n", </s> remove     "from nose.tools import assert_equal\n",
 </s> add     "import unittest\n", </s> remove     "class Challenge(object):\n",
 </s> add     "class Challenge(unittest.TestCase):\n", </s> remove     "from nose.tools import assert_equal\n",
 </s> add     "import unittest\n", </s> remove     "from nose.tools import assert_equal\n",
 </s> add     "import unittest\n",
    "import unittest\n",
      }
     ],
     "source": [
      "%%writefile test_coin_change_ways.py\n",
    "import unittest\n",
      "\n",
      "\n",
      "class Challenge(object):\n",
      "\n",
      "    def test_coin_change_ways(self,solution):\n",
keep keep keep keep replace keep keep keep keep keep
 #273: Remove nose dependency for recursion_dynamic/ (#280) 
recursion_dynamic/coin_change_ways/coin_change_ways_solution.ipynb