This file defines a NamedTuple for TradeDay

tradeday_namedtuple.ipynb

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      "source": "from typing import NamedTuple\nfrom datetime import date\n\n\"\"\"\nNamedTuple for storing prices\n\"\"\"\nclass Prices(NamedTuple(\"Prices\", \n                         [(\u0027open\u0027, float), \n                          (\u0027high\u0027, float), \n                          (\u0027low\u0027, float), \n                          (\u0027close\u0027, float)])):\n    pass\n\"\"\"\nNamedTuple for storing a TradeDay\n\"\"\"\nclass TradeDay(NamedTuple(\"TradeDay\", \n                          ((\"symbol\", str), \n                           (\"date\", date), \n                           (\"prices\", Prices)))):\n    @property\n    def change(self):\n        return round(\n            (self.prices.close - self.prices.open) / self.prices.open, \n            4)\n",
      "metadata": {
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          "metadata": false,
          "name": "#%% This file defines a NamedTuple for TradeDay\n",
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    {
      "cell_type": "code",
      "execution_count": 22,
      "outputs": [
        {
          "data": {
            "text/plain": "TradeDay(symbol\u003d\u0027MA\u0027, date\u003ddatetime.date(2019, 6, 1), prices\u003dPrices(open\u003d10.0, high\u003d30.0, low\u003d5.0, close\u003d20.0))"
          },
          "metadata": {},
          "output_type": "execute_result",
          "execution_count": 22
        }
      ],
      "source": "import datetime\n\nday: TradeDay \u003d TradeDay(\"MA\", datetime.date.today(), Prices(10.0, 30.0, 5.0, 20.0))\n\nday\n",
      "metadata": {
        "pycharm": {
          "metadata": false,
          "name": "#%% Usage Example\n",
          "is_executing": false
        }
      }
    },
    {
      "cell_type": "code",
      "execution_count": 23,
      "outputs": [
        {
          "name": "stdout",
          "text": [
            "\u003d\u003d\u003d\u003d\u003d\u003d Performance Report \u003d\u003d\u003d\u003d\u003d\u003d\n\nThis report shows the performance of storing and accessing a data object as a namedtuple.\nTradeDay(symbol\u003d\u0027MA\u0027, date\u003ddatetime.date(2019, 6, 1), prices\u003dPrices(open\u003d10.0, high\u003d30.0, low\u003d5.0, close\u003d20.0))\n\n------ Speed Report -----\n\nTime it takes to create \u0027day\u0027 object is: \n",
            "2.01 µs ± 17.9 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)\nTime it takes to read \u0027day\u0027 object is: \n",
            "26.9 ns ± 0.307 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)\nTime it takes to read \u0027day.prices\u0027 dict attribute is: \n",
            "75.8 ns ± 0.749 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)\nTime it takes to execute \u0027day.change()\u0027 function is: \n",
            "946 ns ± 15 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)\n\n------ Size Report ------\n\nThe Size of \u0027day\u0027 object: 80 bytes\n\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d End of Report \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n"
          ],
          "output_type": "stream"
        }
      ],
      "source": "import datetime\nimport sys\n\nday: TradeDay \u003d TradeDay(\"MA\", datetime.date.today(), Prices(10.0, 30.0, 5.0, 20.0))\n\nprint(\"\u003d\u003d\u003d\u003d\u003d\u003d Performance Report \u003d\u003d\u003d\u003d\u003d\u003d\\n\")\nprint(\"This report shows the performance of storing and accessing a data object as a namedtuple.\")\nprint(day)\n\nprint(\"\\n------ Speed Report -----\\n\")\nprint(\"Time it takes to create \u0027day\u0027 object is: \")\n%timeit day: TradeDay \u003d TradeDay(\"MA\", datetime.date.today(), Prices(10.0, 30.0, 5.0, 20.0))\nprint(\"Time it takes to read \u0027day\u0027 object is: \")\n%timeit day\nprint(\"Time it takes to read \u0027day.prices\u0027 dict attribute is: \")\n%timeit day.prices\nprint(\"Time it takes to execute \u0027day.change()\u0027 function is: \")\n%timeit day.change\n\nprint(\"\\n------ Size Report ------\\n\")\nprint(\"The Size of \u0027day\u0027 object: {} bytes\".format(sys.getsizeof(day)))\nprint(\"\\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d End of Report \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\")\n",
      "metadata": {
        "pycharm": {
          "metadata": false,
          "name": "#%% Performance Test\n",
          "is_executing": false
        }
      }
    },
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      "source": "",
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          "name": "#%%"
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