import re

regexObject = re.compile('(\w*)@(\w*).(com|net|org)')
matchObject = regexObject.search('python@language.org')

if matchObject != None:
    print "(\w*)@(\w*).(com|net|org): %s (\w*): %s, (\w*): %s, (com|net|org): %s" % (matchObject.group(0),
    matchObject.group(1), matchObject.group(2), matchObject.group(3))