#!/usr/bin/python

import re #import the regular expression module

infile = open("test.txt", 'r')
lines = infile.readlines()
infile.close()

# triple quoted string can span multiple lines
restring = """[ \t]*          # optional whitespace at beginning
              (?P<key>\w+)    # name the matching word 'key' 
              [ \t]*=[ \t]*   # equals sign w/ optional whitespace
              (?P<value>.+)   # some non-whitespace after = is value
              """
matchstr = re.compile(restring, re.IGNORECASE | re.VERBOSE)
for line in lines:
  for match in matchstr.finditer(line):
    print "key =", match.group("key"), 
    print ", value =", match.group("value")