      "\n",
      "\n",
      "class TestStacks(object):\n",
      "\n",
      "    @raises(Exception)\n",
      "    def test_pop_on_empty(self, num_stacks, stack_size):\n",
      "        print('Test: Pop on empty stack')\n",
      "        stacks = Stacks(num_stacks, stack_size)\n",
      "        stacks.pop(0)\n",
      "\n",
 
</s> remove     "    @raises(Exception)\n",
 </s> add  </s> remove     "class TestStacks(object):\n",
 </s> add     "class TestStacks(unittest.TestCase):\n", </s> remove     "class TestStacks(object):\n",
 </s> add     "class TestStacks(unittest.TestCase):\n", </s> remove     "    @raises(Exception)\n",
 </s> add  </s> remove     "    @raises(Exception)\n",
 </s> add 
      "\n",
      "\n",
      "class TestStacks(object):\n",
      "\n",

      "    def test_pop_on_empty(self, num_stacks, stack_size):\n",
      "        print('Test: Pop on empty stack')\n",
      "        stacks = Stacks(num_stacks, stack_size)\n",
      "        stacks.pop(0)\n",
      "\n",
keep keep keep keep replace keep keep keep keep keep
 #273: Remove nose dependency for stacks_queues/ (#276) 
stacks_queues/n_stacks/n_stacks_challenge.ipynb