身份证号码校验

import re
import datetime
import os
import sys
str1 = ‘350825198808080808‘
pat = re.search(r‘[1-9][0-9]{5}([0-9]{4})([0-9]{2})([0-9]{2})[0-9]{3}[0-9X]‘, str1)
if len(str1) != 18 or not pat:
    print "inValid"
    sys.exit(1)
try:
    datetime.date(int(pat.group(1)),int(pat.group(2)),int(pat.group(3)))
except ValueError,e:
    print e
    sys.exit(1)
except:
    sys.exit(1)
print "Valid"