      "class TestSetOfStacks(object):\n",
      "\n",
      "    def test_set_of_stacks(self):\n",
      "        print('Test: Push on an empty stack')\n",
      "        capacity = 2\n",
      "        stacks = SetOfStacks(capacity)\n",
      "        stacks.push(3)\n",
      "\n",
      "        print('Test: Push on a non-empty stack')\n",
      "        stacks.push(5)\n",
      "\n",
 
</s> remove     "        print('Test: Pop on a one element stack to destroy it')\n",
 </s> add     "        print('Test: Pop on a stack to destroy it')\n", </s> remove         capacity = 2
        stacks = SetOfStacks(capacity)
 </s> add         stacks = SetOfStacks(capacity=2) </s> remove     "* Pop on a one element stack to destroy it"
 </s> add     "* Pop on a stack to destroy it" </s> remove     "        return data\n",
 </s> add     "        return super(StackWithCapacity, self).pop()\n", </s> remove     "        data = super(StackWithCapacity, self).pop()\n",
 </s> add 
    "        stacks = SetOfStacks(capacity=2)\n",
      "class TestSetOfStacks(object):\n",
      "\n",
      "    def test_set_of_stacks(self):\n",
      "        print('Test: Push on an empty stack')\n",
    "        stacks = SetOfStacks(capacity=2)\n",
    "        stacks = SetOfStacks(capacity=2)\n",
      "        stacks.push(3)\n",
      "\n",
      "        print('Test: Push on a non-empty stack')\n",
      "        stacks.push(5)\n",
      "\n",
keep keep keep keep replace replace keep keep keep keep keep
 Polish set of stacks solution 
stacks_queues/set_of_stacks/set_of_stacks_solution.ipynb