CS 115 Lab 4, Spring 2015

Deadlines

Pre-lab: Tu 2/10/2015 at 7 AM
Writeup and code (lab04c.py): Tu 2/17/2015 at 4 PM
Demo (parts A, B, and C): Any lab section, workshop, or open tutoring session before Tu 2/17 at 4 PM. Your last chance is the Tuesday tutoring from 3-4 PM.

Goals

Upon successful completion of this lab, you should be able to write and edit Python programs that use:

if-statements and relational expressions
logical operations and expressions
if, if/elif, and if-else statements
nested for-loops

Pre-Lab Assignment

Click here for the pre-lab instructions.

Even if you didn't get to the pre-lab by the deadline, you should work through it before proceeding with the rest of the lab. A PDF of the pre-lab is available on Moodle.

Setup

Before you start writing code, you will set up a directory for this assignment on the cwolf server. To connect to cwolf, do one of the following:
- In Windows... Open PuTTY. Fill in cwolf.cs.sonoma.edu as the hostname, and log in using your CS department username and password.
- In Mac OS X... Open Terminal. Substitute your CS department username for yourusername in the command below:
```
ssh yourusername@cwolf.cs.sonoma.edu
```
  and type your password when prompted.
Enter your CS 115 subdirectory by typing
```
cd cs115
```
Type pwd (print working directory) and verify that the output is:
/home/student/yourusername/cs115
Create a directory for Lab 4 by typing
```
mkdir lab04
```
Enter your Lab 4 directory by typing
```
cd lab04
```
Type pwd again, and verify that the output is:
/home/student/yourusername/cs115/lab04
For now, close Terminal or PuTTY. You will do most of this lab in IDLE.

Lab Instructions

Follow the links below to complete each part of this lab.