This.

1 from sys import argv
2
3 script, filename = argv
4
5 print "We're going to erase %r." % filename
6 print "If you don't want that, hit CTRL- C (^C)."
7 print "If you do want that, hit RETURN."
8
9 raw_input("?")
10
11 print "Opening the file..."
12 target = open(filename, 'w')
13
14 print "Truncating the file. Goodbye!"
15 target.truncate()
16
17 print "Now I'm going to ask you for three lines."
18
19 line1 = raw_input("line 1: ")
20 line2 = raw_input("line 2: ")
21 line3 = raw_input("line 3: ")
22
23 print "I'm going to write these to the file."
24
25 target.write(line1)
26 target.write("\n")
27 target.write(line2)
28 target.write("\n")
29 target.write(line3)
30 target.write("\n")
31
32 print "And finally, we close it."
33 target.close()