python中使用urllib2获取http请求状态码的代码例子

采集内容常需要得到网页返回的验证码做进一步处理

下面代码是用python写的用来获取网页http状态码的脚本

    #!/usr/bin/python
    # -*- coding: utf-8 -*-
    #encoding=utf-8
    #Filename:states_code.py

    import urllib2

    url = 'http://www.jb51.net/'
    response = None
    try:
      response = urllib2.urlopen(url,timeout=5)
    except urllib2.URLError as e:
      if hasattr(e, 'code'):
        print 'Error code:',e.code
      elif hasattr(e, 'reason'):
        print 'Reason:',e.reason
    finally:
      if response:
        response.close()