      "        assert_equal(stack.min(), 1)\n",
      "        assert_equal(stack.pop(), 1)\n",
      "        assert_equal(stack.min(), 5)\n",
      "        assert_equal(stack.pop(), 5)\n",
      "        assert_equal(stack.min(), sys.maxint)\n",
      "\n",
      "        print('Test: Pop empty stack')\n",
      "        assert_equal(stack.pop(), None)\n",
      "        \n",
      "        print('Success: test_stack_min')\n",
 
</s> remove     "        assert_equal(stack.min(), sys.maxint)\n",
 </s> add     "        assert_equal(stack.min(), sys.maxsize)\n", </s> remove     "            return sys.maxint\n",
 </s> add     "            return sys.maxsize\n", </s> remove     "* If we call this function on an empty stack, can we return max int?\n",
 </s> add     "* If we call this function on an empty stack, can we return sys.maxsize?\n", </s> remove     "* If we call this function on an empty stack, can we return max int?\n",
 </s> add     "* If we call this function on an empty stack, can we return maxsize?\n", </s> remove         assert_equal(stack.min(), sys.maxint)
 </s> add         assert_equal(stack.min(), sys.maxsize)
    "        assert_equal(stack.min(), sys.maxsize)\n",
      "        assert_equal(stack.min(), 1)\n",
      "        assert_equal(stack.pop(), 1)\n",
      "        assert_equal(stack.min(), 5)\n",
      "        assert_equal(stack.pop(), 5)\n",
    "        assert_equal(stack.min(), sys.maxsize)\n",
      "\n",
      "        print('Test: Pop empty stack')\n",
      "        assert_equal(stack.pop(), None)\n",
      "        \n",
      "        print('Success: test_stack_min')\n",
keep keep keep keep replace keep keep keep keep keep
 Changed sys.maxint to sys.maxsize for Python 3 compatibility. 
stacks_queues/stack_min/stack_min_challenge.ipynb