Computer Science 220 Program 1 – The Weight We Carry


As stated in the
course policies on the syllabus, the due date/time is firm. Do not send your
assignment via email.  Remember that you
may submit multiple times, so there is no excuse for not submitting partial


Learning objectives:

  • Create a Python program on your own.

  • Develop a simple Python program that asks for input, does
    arithmetic, and provides output.



Part A - Problem Statement:

This year's
Convocation book was The Things They
, by Tim O’Brien. The book describes the things, both physical and
emotional, that were carried by soldiers during the Vietnam War.  Of the physical items, many were carried out
of necessity while others were packed for many reasons like fear, safety, or
reminders of home.


Each day we
carry many things: clothes, books, designer coffee, keys.  AFTER completing part B of this assignment, write
a program that allows the user to input the weights in grams of 3 items.  Perform calculations to find the total and
average weights of these items in both pounds and kilograms and display your
results in a meaningful way.  Use the following
conversion formulas.  The computer should
perform all calculations based on these formulas.


g / 1000 = kg

kg * 2.2 = lbs


Save your program as


Part B – Software
Development Cycle:

Applying the
software development cycle aids in the process of creating software.  Ask yourself, and write the answers to,
questions 1-3 BEFORE implementing a solution in Python. Save your answers as a
comment in your program.   


What will the program do?

What will be the inputs and

Provide a step-by-step list of
what your program must do, aka an algorithm. 
(Remember this is in English!)

Implement your design.

Test your program.


File to be submitted:
Your code should follow the policies provided in the Policy statement available
on WebCT.


Submission instructions:

Log on to
WebCT.  Click the link for this class,
CSCI 220.  On the class home page, click
the Assignments link.  Click the words
“Program 1”.  Upload your files using the
button provided.  In the text box
provided, you may enter your email address if you would like an email
confirmation that your assignment was submitted.  After uploading your file, be sure to press the submit button.  It is not until you see the word “Success!”
that you have successfully submitted your assignment.


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