Access the file in a variable vs. with notation

Gist_zip_with_notation.ipynb

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   "source": [
    "import zipfile"
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   "source": [
    "with zipfile.ZipFile(r\"to_process/Test_001_20201027.zip\", 'r') as zip_ref:\n",
    "    zip_ref.extractall(\"temp\")"
   ]
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     "data": {
      "text/plain": [
       "<zipfile.ZipFile [closed]>"
      ]
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   "source": [
    "# using with notation ensure that the file is closed after the processing\n",
    "zip_ref"
   ]
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     "data": {
      "text/plain": [
       "<zipfile.ZipFile filename='to_process/Test_001_20201027.zip' mode='r'>"
      ]
     },
     "execution_count": 4,
     "metadata": {},
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   "source": [
    "zip_ref = zipfile.ZipFile(r\"to_process/Test_001_20201027.zip\", 'r')\n",
    "zip_ref.extractall(\"temp\")\n",
    "\n",
    "# if you only assign the file to the variable, it remains in the memory after processing\n",
    "zip_ref"
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   "outputs": [
    {
     "data": {
      "text/plain": [
       "<zipfile.ZipFile [closed]>"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
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   ],
   "source": [
    "# unless you intentionally close it\n",
    "zip_ref.close()\n",
    "zip_ref"
   ]
  }
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