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    "### <center>San Jose State University<br>Department of Applied Data Science<br><br>**DATA 200<br>Computational Programming for Data Analytics**<br><br>Spring 2023<br>Instructor: Ron Mak</center>"
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    "## 9.8.2 `try` Statements"
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    "#### We can write our own exception handlers with Python's `try` statement. The following code repeately prompts the user for two numbers to divide until the user enters two valid numbers\n",
    "- The `try` statement enables exception handling. Its suite contains statements that _might_ raise exceptions.\n",
    "- Each `except` clause introduces a suite to handle a particular type of exception.\n",
    "- The optional `else` clause introduces a suite to execute if the try suite did _not_ raise any exceptions."
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    "# dividebyzero.py\n",
    "\"\"\"Simple exception handling example.\"\"\"\n",
    "\n",
    "while True:\n",
    "    # attempt to convert and divide values\n",
    "    try:\n",
    "        number1 = int(input('Enter numerator: '))\n",
    "        number2 = int(input('Enter denominator: '))\n",
    "        result = number1 / number2\n",
    "    except ValueError:  # tried to convert non-numeric value to int\n",
    "        print('You must enter two integers\\n')\n",
    "    except ZeroDivisionError:  # denominator was 0\n",
    "        print('Attempted to divide by zero\\n')\n",
    "    else:  # executes only if no exceptions occur\n",
    "        print(f'{number1:.3f} / {number2:.3f} = {result:.3f}')\n",
    "        break  # terminate the loop"
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   "source": [
    "### Flow of control in a `try` statement"
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    "#### If the `try` suite does not raise any exceptions, the suite executes normally and the `except` clauses are skipped. Since there is an `else` clause in the example, its suite executes to print the results and break the loop.\n",
    "#### If the user enters an invalid value for either of the two `input()` function calls, the `try` suite immediately leaves and the `ValueError` exeption handler executes. If the division attempts to divide by zero, the `try` suite immediately leaves and the `ZeroDivisionError` exeption handler executes. In either exception case, the `else` clause (if there is one) is skipped. In the example, the loop goes around again to reprompt the user for two values."
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    "##########################################################################\n",
    "# (C) Copyright 2019 by Deitel & Associates, Inc. and                    #\n",
    "# Pearson Education, Inc. All Rights Reserved.                           #\n",
    "#                                                                        #\n",
    "# DISCLAIMER: The authors and publisher of this book have used their     #\n",
    "# best efforts in preparing the book. These efforts include the          #\n",
    "# development, research, and testing of the theories and programs        #\n",
    "# to determine their effectiveness. The authors and publisher make       #\n",
    "# no warranty of any kind, expressed or implied, with regard to these    #\n",
    "# programs or to the documentation contained in these books. The authors #\n",
    "# and publisher shall not be liable in any event for incidental or       #\n",
    "# consequential damages in connection with, or arising out of, the       #\n",
    "# furnishing, performance, or use of these programs.                     #\n",
    "##########################################################################\n"
   ]
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   "source": [
    "# Additional material (C) Copyright 2023 by Ronald Mak"
   ]
  }
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