Sale_stock_test_no_2b.ipynb

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       "True"
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    "#check blacklist from black_list.txt\n",
    "blacklist = open('black_list.txt','r')\n",
    "def check_blacklist(name,phone_number):\n",
    "    with blacklist as black:\n",
    "        black2 = [s.replace('\\n', '') for s in black]\n",
    "        split_data = [s.split(' ') for s in black2]\n",
    "        for i in split_data:\n",
    "            if i[0]==str(name) and int(i[1])==phone_number:\n",
    "                return True\n",
    "            else:\n",
    "                continue\n",
    "        return False\n",
    "\n",
    "check_blacklist('rocky',23)    "
   ]
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