使用Python脚本将绝对url替换为相对url的教程

公司一个项目需要上传图片,一开始同事将图片上传后结合当前主机拼成了一个绝对的URL(http://192.168.1.1:888/m/getimg?filename=xxx.jpg由于同时给手机终端提供接口,在手机终端会引起一些bug,改完代码后要求将以前的uri替换成相对的URL(/m/getimg?filename=xxx.jpg),由于图片是用img标签嵌入到内容同时用a标签括起显示大图的,所以需要读取数据库并对内容进行替换,

脚本内容如下:

#!/usr/bin/env python/' target='_blank'>python#-*- coding:utf-8 -*-### author : cold night# email  : wh_linux@126.com#import pymongoimport refrom StringIO import StringIOconn = pymongo.Connection()db = conn.testdef replace_url():  regex = re.compile(r'([href|src])=["|\']http://.*?(/m/getimg\?.*?)["|\']')  results = db['test'].find()  db_coll = db['test']  def replace(r):    content = r.get('content')    if not content: return    content = StringIO(content)    content.seek(0)    result = StringIO()    for line in content.readlines():      t = regex.sub(r'\1="\2"', line)      result.write(t)    result.seek(0)    content = result.read()    if content:      r['content'] = content    _id = r.get('_id')    db_coll.update({'_id':_id}, r)  results = [replace(i) for i in results]if __name__=="__main__":replace_url()