OPS435 Python Assignment 3
Contents
Assignment 3 - Class Cancellation Notification (CCN)
Weight: 15% of the overall grade
Due Date: Ask your professor for exact date
Late Penalty: 20% per school day, and note that this assignment in an alternative to assignment 2. Same rules applied to this assignment as assignment 2
Overview
As most system administrators, you would like to offer email notification to your users based on the event that triggers it. In a school environment, classes may be cancelled in a daily basis and the classes being cancelled may be posted to a web site and it is up to the students to check it out. If you do not check the class cancellation web site before heading to your class, you may be disappointed when you get there and find out that your class has been cancelled. It would be nice if you can get an email send to you for any class cancellation before you leave home for the class. For this assignment, you are going to write a script to poll data from the class cancellation web site (any given web site, but you can use the web page here for testing purpose) and send an email to any body subscribe to you email notification service ( a sample subscription web page here that their classes have been cancelled.
Instruction
Program Name and valid command line arguments
Name your Python3 script as ccn_[student_id].py. Create a symbolic link to your script as ccn.py (e.g. use the command ln -s ccn_rchan.py ccn.py to create the link) so that you can refer to your script as ccn.py. Your script must accept one or more "web site" as its command line parameters and other optional parameters as shown below. Your python script should produce the following usage text when run with the --help option:
usage: ccn.py [-h] [-s SITE] [-t {table,text}] [-n {table,text}] N [N ...]
Class Cancellation Notification System
positional arguments:
N list of notification subscription sites to be
processed.
optional arguments:
-h, --help show this help message and exit
-s SITE, --site SITE class cancellation web site
-t {table,text}, --type {table,text}
type of class concellation data: table -> html table,
text -> plain text file
-n {table,text}, --notification {table,text}
type of notification data: table -> html table, text
-> plain text file
Copyright 2018 - Raymond Chan
Replace the last line with your own full name
If there is one CCN subscription web page provided at the command line, read the subscription list from the given web page. The format of.
If there is more than one CCN subscription web page provided, merge all the subscription list with the first one at the top and the last one at the bottom. Read and process the subscription list in that order in your program.
If no class cancellation site specified, default to https://scs.senecac.on.ca/~raymond.chan/ops435/a3/ccn.html.
If no -t or -n specified, default to html table.
Sample subscription site: https://wiki.cdot.senecacollege.ca/wiki/OPS435_Python_A3_CCN_Subscription
Header
All your Python codes for this assignment must be placed in a single source file. Please include the following declaration by you as the script level docstring in your Python source code file (replace [Student_id] with your Seneca email user name, and "Student Name" with your own name):
OPS435 Assignment 3 - Fall 2018
Program: ccn_[Stduent_id].py
Author: "Student Name"
The python code in this file ccn_[Student_id].py is original work written by
"Student Name". No code in this file is copied from any other source
including any person, textbook, or on-line resource except those provided
by the course instructor. I have not shared this python file with anyone
or anything except for submission for grading.
I understand that the Academic Honesty Policy will be enforced and violators
will be reported and appropriate action will be taken.Modules you are allowed to use in your script for this assignment
- the os, sys modules
- the argparse module
- Argparse Tutorial - should read this first.
- Argparse API reference information page
- the time module
