python中将正则过滤的内容输出写入到文件中的实例

27.19.74.143 - - [30/May/2015:17:38:21 +0800] "GET /static/image/smiley/default/sleepy.gif HTTP/1.1" 200 23758.35.201.164 - - [30/May/2015:17:38:21 +0800] "GET /static/image/common/pn.png HTTP/1.1" 200 592

60.166.12.170 31/May/2013:00:00:02 /forum.php 200 45780

#!/usr/bin/env python  # - coding:utf - 8 -*-import re,syswith open('access_test.log') as f:  for line in f:    parseip = re.search(r'(.*?) - - ', line)    parsetime = re.search(r'(.∗?)(.∗?)', line)    parseurl = re.search(r' "/w+ (.*?) HTTP/', line)    parsestatus = re.search(r' HTTP/(.*?)" (.*?) ', line)    parseTraffic = re.search(r'/d+ /d+', line)    if parseip and parsetime and parseurl and parsestatus and parseTraffic is None:      continue        output=sys.stdout    outputfile=open('20160205.txt','a')    sys.stdout=outputfile    print parseip.group(1).split('?')[0] + '/t' + parsetime.group(1).split('?')[0] + '/t' + parseurl.group(1).split('?')[0] + '/t' + parsestatus.group(2) + '/t' + parseTraffic.group(0).split(' ')[1]    outputfile.close()    sys.stdout=outputimport sys

output=sys.stdoutoutputfile=open(filename,'w')sys.stdout=outputfile

outputfile.close()sys.stdout=output