Parallel HTTP requests using python

requests_futures.ipynb

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   "cell_type": "markdown",
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   "source": [
    "# Parallel HTTP requests using Python!\n",
    "\n",
    "- [requests-futures](https://github.com/ross/requests-futures)\n",
    "\n",
    "    `pip install requests-futures`"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [],
   "source": [
    "import requests\n",
    "from requests_futures.sessions import FuturesSession\n",
    "from concurrent.futures import ProcessPoolExecutor"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "urls = [\n",
    "    \"https://httpbin.org/ip\",\n",
    "    \"https://httpbin.org/xml\",\n",
    "    \"https://httpbin.org/json\",\n",
    "    \"https://httpbin.org/image\",\n",
    "    \"https://httpbin.org/image/png\",\n",
    "    \"https://httpbin.org/image/jpg\",\n",
    "    \"https://httpbin.org/image/jpeg\",\n",
    "    \"https://httpbin.org/headers\",\n",
    "]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "3.29 s ± 0 ns per loop (mean ± std. dev. of 1 run, 1 loop each)\n"
     ]
    }
   ],
   "source": [
    "%%timeit -r 1\n",
    "with requests.Session() as session:\n",
    "    list(map(session.get, urls))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1.44 s ± 0 ns per loop (mean ± std. dev. of 1 run, 1 loop each)\n"
     ]
    }
   ],
   "source": [
    "%%timeit -r 1\n",
    "with FuturesSession() as session:\n",
    "    futures = [session.get(url) for url in urls]\n",
    "    for future in futures:\n",
    "        future.result()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1.41 s ± 0 ns per loop (mean ± std. dev. of 1 run, 1 loop each)\n"
     ]
    }
   ],
   "source": [
    "%%timeit -r 1\n",
    "with FuturesSession(executor=ProcessPoolExecutor(max_workers=8)) as session:\n",
    "    futures = [session.get(url) for url in urls]\n",
    "    for future in futures:\n",
    "        future.result()"
   ]
  }
 ],
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