COMP 1405 A/B/C − "Introduction to Computer Science I"
Specification for Assignment 02
For this assignment you will demonstrate that you can use type conversion functions and arithmetic
operations as part of a program that observes the "pipeline" design pattern. You will do so by creating
a program that takes input from the user (using both a command-line argument and a call to the input
function) and then performs a complex series of operations that was assigned specifically to your
student number.
In order to complete this task, you will need to:
• find your assigned instructions on Brightspace1
• know how to use a command-line argument2
• read about the conversion functions and arithmetic operators3
• evaluate your instructions (by hand) for several inputs (to design test cases for yourself)
Your submission for this assignment:
• must be a source code file with filename4 'comp1405_f21_#########_assignment_02.py'
• must NOT import anything other that 'sys' (which is required for command-line arguments)
• must use both a command-line argument and a single call to the 'input' function
• must store the result in a variable, updating and printing that variable after each operation
• must print the final result to the screen using "triangle brackets" (e.g., <65>)
• can assume that the user will always enter a positive integer at any opportunity for input
1 The "Tasks for Assignment 2.pdf" document on Brightspace contains each student's assigned instructions.
2 You may wish to refer to "live_demo_05_echo_utility.py", as that demo exhibited the use of a command-line argument
3
In addition to being discussed in class, these subjects were also covered in Chapter 2.6 and 2.7 of our official textbook.
4 You must replace the number signs in the filename with your official nine-digit student identification number.
