如何调试使用基本身份验证处理程序的urllib2请求 [英] How to debug urllib2 request that uses a basic authentication handler

问题描述

我正在使用 urllib2 和 HTTPBasicAuthHandler 提出请求：

I'm making a request using urllib2 and the HTTPBasicAuthHandler like so:

import urllib2

theurl = 'http://someurl.com'
username = 'username'
password = 'password'

passman = urllib2.HTTPPasswordMgrWithDefaultRealm()
passman.add_password(None, theurl, username, password)

authhandler = urllib2.HTTPBasicAuthHandler(passman)
opener = urllib2.build_opener(authhandler)
urllib2.install_opener(opener)

params = "foo=bar"

response = urllib2.urlopen('http://someurl.com/somescript.cgi', params)

print response.info()

运行此代码时，我正在获得一个 httplib.BadStatusLine 异常。我该怎么去调试？有没有办法看到原始的响应是什么，不管无法识别的HTTP状态代码？

I'm currently getting a httplib.BadStatusLine exception when running this code. How could I go about debugging? Is there a way to see what the raw response is regardless of the unrecognized HTTP status code?

推荐答案

你尝试设置调试级别在您自己的HTTP处理程序中？将您的代码更改为这样：

Have you tried setting the debug level in your own HTTP handler? Change your code to something like this:

>>> import urllib2
>>> handler=urllib2.HTTPHandler(debuglevel=1)
>>> opener = urllib2.build_opener(handler)
>>> urllib2.install_opener(opener)
>>> resp=urllib2.urlopen('http://www.google.com').read()
send: 'GET / HTTP/1.1
      Accept-Encoding: identity
      Host: www.google.com
      Connection: close
      User-Agent: Python-urllib/2.7'
reply: 'HTTP/1.1 200 OK'
header: Date: Sat, 08 Oct 2011 17:25:52 GMT
header: Expires: -1
header: Cache-Control: private, max-age=0
header: Content-Type: text/html; charset=ISO-8859-1
... the remainder of the send / reply other than the data itself 

所以要添加的三行是：

handler=urllib2.HTTPHandler(debuglevel=1)
opener = urllib2.build_opener(handler)
urllib2.install_opener(opener)
... the rest of your urllib2 code...

这将显示stderr上的原始HTTP发送/回复周期。

That will show the raw HTTP send / reply cycle on stderr.

从评论编辑

这是否有效？

... same code as above this line
opener=urllib2.build_opener(authhandler, urllib2.HTTPHandler(debuglevel=1))
... rest of your code

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