14 Handling Errors and Exceptions/14.2 Try-Except Basics.ipynb

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   "cell_type": "markdown",
   "id": "327b0e52",
   "metadata": {},
   "source": [
    "# Try/Except Basics\n",
    "\n",
    "1. Try\n",
    "2. Except\n",
    "3. Else\n",
    "4. Finally"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "3d9fb0a5",
   "metadata": {},
   "outputs": [],
   "source": [
    "x = 1\n",
    "y = 2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "c911f9d3",
   "metadata": {},
   "outputs": [
    {
     "ename": "SyntaxError",
     "evalue": "unexpected EOF while parsing (1154111123.py, line 2)",
     "output_type": "error",
     "traceback": [
      "\u001b[1;36m  File \u001b[1;32m\"C:\\Users\\alexf\\AppData\\Local\\Temp\\ipykernel_1297424\\1154111123.py\"\u001b[1;36m, line \u001b[1;32m2\u001b[0m\n\u001b[1;33m    print(x)\u001b[0m\n\u001b[1;37m            ^\u001b[0m\n\u001b[1;31mSyntaxError\u001b[0m\u001b[1;31m:\u001b[0m unexpected EOF while parsing\n"
     ]
    }
   ],
   "source": [
    "try:\n",
    "    print(x)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "eb94c7b2",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1\n"
     ]
    }
   ],
   "source": [
    "try:\n",
    "    print(x)\n",
    "except:\n",
    "    print('There was an error')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "29dd8673",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "There was an error\n"
     ]
    }
   ],
   "source": [
    "code here\n",
    "\n",
    "try:\n",
    "    print(z)\n",
    "except:\n",
    "    print('There was an error')\n",
    "    \n",
    "more code here...."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "85fd0355",
   "metadata": {},
   "outputs": [
    {
     "ename": "NameError",
     "evalue": "name 'z' is not defined",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mNameError\u001b[0m                                 Traceback (most recent call last)",
      "\u001b[1;32m~\\AppData\\Local\\Temp\\ipykernel_1297424\\557461111.py\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[1;32m----> 1\u001b[1;33m \u001b[0mprint\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mz\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
      "\u001b[1;31mNameError\u001b[0m: name 'z' is not defined"
     ]
    }
   ],
   "source": [
    "print(z)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "0abdc8a3",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Variable is not defined\n"
     ]
    }
   ],
   "source": [
    "try:\n",
    "    print(z)\n",
    "except NameError:\n",
    "    print('Variable is not defined')\n",
    "except:\n",
    "    print('There was an error')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "8cd861b4",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "2\n",
      "We had no errors! Hooray!\n"
     ]
    }
   ],
   "source": [
    "#Else\n",
    "\n",
    "try:\n",
    "    print(y)\n",
    "except NameError:\n",
    "    print('Variable is not defined')\n",
    "except:\n",
    "    print('There was an error')\n",
    "else:\n",
    "    print('We had no errors! Hooray!')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "d2b67cea",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "name 'z' is not defined\n"
     ]
    }
   ],
   "source": [
    "\n",
    "\n",
    "try:\n",
    "    print(z)\n",
    "except Exception as e:\n",
    "    print(e)\n",
    "except NameError:\n",
    "    print('Variable is not defined')\n",
    "except:\n",
    "    print('There was an error')\n",
    "else:\n",
    "    print('We had no errors! Hooray!')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "01e548fa",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "2\n",
      "We had no errors! Hooray!\n",
      "Finally will print no matter what\n"
     ]
    }
   ],
   "source": [
    "#Finally\n",
    "\n",
    "try:\n",
    "    print(y)\n",
    "except Exception as e:\n",
    "    print(e)\n",
    "except NameError:\n",
    "    print('Variable is not defined')\n",
    "except:\n",
    "    print('There was an error')\n",
    "else:\n",
    "    print('We had no errors! Hooray!')\n",
    "finally:\n",
    "    print('Finally will print no matter what')"
   ]
  },
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