2a_data_download.ipynb

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 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "$a$ and $b$ are lists of urls for grabbing Didi Xi'an October and November data, respectively."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "import urllib.request\n",
    "import tarfile"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [],
   "source": [
    "for i,url in enumerate(a[:-1]):\n",
    "    name = \"data/tar/10-{}.tar.gz\".format(i+1)\n",
    "    urllib.request.urlretrieve(url,name)\n",
    "    tar = tarfile.open(name)\n",
    "    tar.extractall(path=\"data/\")\n",
    "    tar.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "for i,url in enumerate(b[:-1]):\n",
    "    name = \"data/tar/11-{}.tar.gz\".format(i+1)\n",
    "    urllib.request.urlretrieve(url,name)\n",
    "    tar = tarfile.open(name)\n",
    "    tar.extractall(path=\"data/\")\n",
    "    tar.close()"
   ]
  }
 ],
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