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#!/usr/bin/python

import os

def read_file(name):

print 'printing contents of file ' + name

f = None

#We use try...finally to ensure that the file is closed even if there

#is a problem while processing it

try:

f = file(name, 'r')

line = f.readline()

while(len(line) != 0):

print line, #notice the , to prevent printing a newline character

line = f.readline()

finally:

if f != None:

f.close()

def create_module(name):

print 'creating module ' + name

f = None

#We use try...finally to ensure that the file is closed even if there

#is a problem while processing it

try:

f = file(name, 'w')

#Notice that a newline is not inserted automatically

#There is no println in Python

f.write('#!/usr/bin/python\n')

f.write('# Filename : ' + name + '\n')

f.write("'''Class comment to be completed.'''\n")

f.write('\n')

f.write('def __init__():\n')

f.write('\n')

f.write('def __str__():\n')

f.write('\n')

finally:

if f != None:

f.close()

name = '/home/pshah/tmp/tmp.py'

#Use exceptions to make the program fail gracefully and provide a meaningful

#message to the user

try:

create_module('/home/pshah/tmp1/tmp.py')

read_file(name)

#Remove the file so we do not pollute the disk

os.remove(name)

except Exception, e:

print 'An error ocurred in this program ', e