[Tutor] How to get user input as regex

[Dick Moores]

I'm just beginning to learn regex, and am wondering how to get user input 
that can be used as a regex. Of course my attempt below doesn't work, but 
how should I modify it?

I'm practicing with phone.txt, which is 513 lines, each line having a 
name and phone number, and some other details like an address and times.

Sorry for the dumb question.

import re
s = raw_input("regex: ")
digs = re.compile(r"s")
for line in open("data//phone.txt"):
     if digs.search(line):
         print line

Thanks,

Dick Moores
rdm at rcblue.com