Problem 1:

# Program: wordCheck.py
# Author: Brenda Student
# Class: CSCI 110
# Date: 2/4/11
# Assignment: Lab 2
# Purpose: Ask for a word and print out the first letter
#	Check for the case where nothing is entered.

word = raw_input("Please enter a word: ")
if len(word) == 0:
    print "No characters were entered."
else:
    print "The first letter of the word is: ", word[0]

Problem 2:

# Program: square.py
# Author: Brenda Student
# Class: CSCI 110
# Date: 2/4/11
# Assignment: Lab2
# Purpose: Use a turtle to draw a square.

from turtle import Pen as Turtle

size = input("What size square would you like? ")
yertle = Turtle( )
yertle.forward(size)
yertle.right(90)
yertle.forward(size)
yertle.right(90)
yertle.forward(size)
yertle.right(90)
yertle.forward(size)
yertle.right(90)

Problem 3:

# Program: drawingChoice.py
# Author: Brenda Student
# Class: CSCI 110
# Date: 2/4/11
# Assignment: Lab2
# Purpose: Use a turtle to draw and X or an O based on user input.

from turtle import Pen as Turtle

yertle = Turtle( )

answer = raw_input("Do you want to draw an X or an O? ")
if answer == "X":
    yertle.up( )
    yertle.goto(-50, 50)
    yertle.down( )
    yertle.right(45)
    yertle.forward(141)
    yertle.up( )
    yertle.goto(-50, -50)
    yertle.down( )
    yertle.left(90)
    yertle.forward(141)
    
elif answer == "O":
    yertle.up( )
    yertle.goto(0, -50)
    yertle.down( )
    yertle.circle(50)

else:
    print "That is not what I asked for!"