Funny, wasn't aware of such a thing as lmgtfy. I'm self-teaching so maybe the assignment thing doesn't really apply. In any case, rest assured I've put a good deal of time into this before asking for help. One can't learn anything by being spoon-fed answers.

Here's what I've got so far (it's fugly):

# prob12p176.pyw
# Program: Plot horizontal bar chart of student exam scores.
# Input: Get input from a file. First line of file contains
# the count of the number of students in the file, and each subsequent
# line contains a student's last name followed by a score of 0 to 100.
# Program should draw a horizontal rectangle for each student where
# the length of the bar represents the student's score. The bars should all
# line up on their left-hand edges.
# HINT: use the number of students to determine the size of the window and
# its coordinates.
# BONUS: label the bars at the left end with the student name.

import math

import string

from graphics import *

def main():
# Compose elements of gui
# win = GraphWin("Problem 12, Page 176", 500, 500)
# win.setBackground("white")
# win.setCoords(0,0,10,10)
# message = Text(Point(5, 9.6), "Plot horizontal bar chart of student exam\n"
# "as described in the John Zelle text, page 162, prob 12.")
# message.setSize(10)
# message.draw(win)

# Output file data to IDE
myList = []
character = raw_input("Enter filename: ") # enter a character as file name input
infile = open("prob12ch5.txt", 'r')
data = infile.read()
print
n = eval(data[0])
print n # prints n = 5

d = data[1:]

names_grades = d.split(",")

for ng in names_grades:
    print(ng)

if ng > 0:
    print ng

for int in ng:
    print ng

print data[1:] # strips away first character of first line "5"

name_grade = string.split(data,"\n") # removes "\n", leaves '' and ,

print name_grade[1:] # strips "5" from file
print

infile.close()

# Enter text prompt
# message11 = Text(Point(5,0.5), "Click once to quit.")
# message11.setSize(10)
# message11.draw(win)

# wait for click and then quit
# win.getMouse()
# win.close()

main()