ex16.py

from sys import argv

script, filename = argv

print "We're going to erase %r." % filename
print "If you don't want that, hit CTRL-C (^ C)."
print "If you do want that, hit RETURN."

raw_input ("?")

print "Opening the file..."
target = open(filename, 'w')

print "Trunctating the file. Goodbye!"
target.truncate()

print "Now I'm going to ask your for threee lines."

line1= raw_input ("line1: ")
line2 = raw_input ("line2: ")
line3 = raw_input ("line3: ")

print "I'm going to write these to a file."

target.write (line1)
target.write ("\n")
target.write (line2)
target.write ("\n")
target.write (line3)
target.write ("\n")


print "And finally, we close it."
target.close()

message = open(filename)
print message.read()
message.close()
print "Done!"