say I have a text file: zz3 uaa4a ss 7 uu zz 3 zzzz66 ppazz9 aaaaaaaaa00000zz0
I want to sort the text file. I want the key to be the number after the two "zz". Or I guess a string of two zz then a number....So that's 3, 9, 0 I'm trying to say that I want to sort lines in a file based on a regular expression. How could I do that in Python? I'm limited to Python 2.1, I can't add any 2nd party newer tools. Thanks Lee G. -- http://mail.python.org/mailman/listinfo/python-list