Smith College, Computer Science 111 - Fall Semester, 2006
Homework #1 due: by midnight on Wednesday September 13, 2006

Part 1. Log into beowulf.csc using your 111a-xx class account, as we did in the Lab (look at the Lab1 handout or Lab1.html web site if you are unsure of this).

First, use the linux copy command, cp, to make a copy of your file hobbies.py under the new name hw1.py, by typing, at the beowulf $ prompt
cp hobbies.py hw1.py
(that's a one, not an "ell"). If you now type ls, the linux command for list, you will see that your list of files shows a new file called hw1.py

Now, type emacs hw1.py at the beowulf prompt. Use emacs to make the following changes in hw1.py:

• In the comment/documentation section at the beginning of the file, change the author to your name, and change the date to the date on which you do this part of the project. Furthermore, change the account to 111a-xx where xx is your own letter and number. Also, before submitting, change the description to reflect the modifications that you have made. You must include this documentation in every program you write in this course.

• Delete the line that says

  final_year = 2010
  

• After the line that says

  month_cost = input("How much does it cost per month (e.g. 25.00) ")
  

  add a new, but similar line that asks the user how many years to calculate the total cost, and places that information in a variable called num_years .
  
• Next add another line that adds num_years to this_year and stores it in final_year. It will start like this:

  final_year = 
  

• Also add a line that asks the user for her middle name, and places it in variable middle.
• Change the lines that print the user's names so that all three of the user's names get printed.
• Change the introductory and goodbye remarks that get printed on the screen by the program.

Next, import and run your program and make sure that it doesn't have any errors! Go back and edit the file using emacs, if it does have errors.
Programs that have errors when interpreted will not be given credit.

To get a printout (hard copy) of your program, type cprint hw1.py at beowulf's prompt. cprint will show a list of printers. Find Engineering 203 and type in its number. The paper copy is for you. Your submission is done on the computer. When your program is ready, you should submit your file by issuing the command
submit homework1 hw1.py