python request模块：head和get request方法之间有什么区别

Question

when I use requests module to check whether a page is available. for example:

>>> import requests
>>> url = "http://www.motie.com/book/29675"
>>> res = requests.head(url)
>>> print res.status_code
404
>>> res = requests.get(url)
>>> print res.status_code
200

I got status_code 404 and 200 for HEAD and GET respectively. I don't known why. besides, how can I strace the reason. Thanks a lot.

Answer 1

The web server you contact is free to behave as it feels it should. In this case it reports that it cannot find an answer for the head request even if it can find an answer for the get request. This is not what it should do, but you would need to fix the server to solve this issue.

See some more about the head request here and of course in the WP here .

Actually, I think it is a bug in the server.