python re 匹配回车 re.DOTALL

#!/usr/bin/env python


import re


my_str = """accessTypeWeight:
- type: TAIR
 weight: 1
tairConfigId: mcomm
tairNamespace: 5072
version: '0'
zone: mcomm.single"""


# extract tairConfigId
ret = re.match('.*tairConfigId:\s*(\w*).*', my_str, re.DOTALL)
if ret:
    print ret.groups()[0]