This assignment was due in Moodle on Sunday, March 20^th at 11:59PM. Click on the following file names to view the sample solution: FacePalm.py and FacePalmData.txt.

For Assignment 3 you will create a prototype for a new social networking website named FacePalm. You must create the prototype as a demo for potential investors; it must work correctly to convince them invest. The prototype must demonstrate some of the key features that will attract people to the site and collect valuable personal information.

Requirements

The prototype must implement the following features:

• Individual accounts to store each person's
  • username
  • password
  • full name
  • age
  • address
  • "message billboard"
• Users logging in and logging out
• Users viewing their own profiles
• Users viewing their messages
• Users leaving messages on each others' billboards

All of the user actions described must be available to them via menus. The prototype must load user account information from a text file on startup and save it on shutdown. You must determine how user data will be stored in the file and in the program.

The prototype may not crash or experience any errors as that will not impress the investors. Any possible exceptions must be caught and an appropriate error message must be displayed. All errors must be handled gracefully, including user input errors.

To illustrate how FacePalm must work, refer to the sample output here.

Excluded Strategies

You prototype may not:

• make recursive calls, i.e., have functions calling themselves or a chain of functions calling each other
• assume that there are a specific number of users; loading and saving must work for any number of accounts
• implement the prototype in a single or a few large function(s)
• use global variables other than constants; information must be exchanged between functions by using parameters and returning values

Any program which uses any of these strategies will receive an automatic deduction of 8/15.

Submission in Moodle

You may upload two files: one named "FacePalm<SECTION>.py" and one which contains the user data. Please substitute your tutorial section letter for <SECTION> in the file name (e.g., FacePalmA.py).

Marking Scheme

Category	Elements	Marks
Requirements	User accounts Loading and saving User menus Logging in and logging out Viewing profiles Viewing messages Leaving messages	10
Style	Appropriate comments Good function and variable names Good functional decomposition Values passed into functions as parameters Values returned from functions "Readable" code	5
Subtotal		15
Deductions for excluded strategies or errors		-?
Total		15