ex16.py

# code file for ex16 
# Reading and writing files 

from sys import argv 

script, filename = argv 

print "We are 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 "Truncating the file, Goodbye!"
target.truncate()

print "Now I am going to ask you for three lines."

line1 = raw_input("line 1 : ")
line2 = raw_input("line 2 : ")
line3 = raw_input("line 3 : ")

print "I am going to write these to the 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