How to define the HTTP protocol version in requests?

Question:

import requests  
requests.get("http://www.sample.com")

How to modifiy the parameter to send the requests like below:

“GET www.sample.com HTTP/1.0”

“GET www.sample.com HTTP/1.1”

Asked By: maston

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Source

Answers:

Requests does not support sending HTTP/1.0 messages. It is hard to understand why you’d need to do that: HTTP/1.1 was originally specified in RFC 2616, published in June 1999. HTTP/1.0 has therefore been obsolete for more than 16 years: modern tools largely do not support HTTP/1.0 any longer.

Answered By: Lukasa

Try to pass a User-Agent string, like this:

import requests

headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36'}
URL = 'http://serveraddress'
page = requests.get(URL, headers=headers)
print(page.text)

Background: Working with a legacy Shoutcast streaming audio server, I was getting the following error:

requests.exceptions.ConnectionError: ('Connection aborted.', BadStatusLine('ICY 200 OKrn'))

I noticed, too, that wget attempted to stream the data, even when given an -O output directive.

Comparing with Developer Tools in Chrome, I could see several request headers that the browser set, including User-Agent. I copied the User-Agent value from Chrome and used it as a parameter in a requests.get function.

Answered By: Rocky Raccoon

You have to mokey patch the code by setting http.client.HTTPConnection‘s _http_vsn_str property to 'HTTP/X.Y' before making your request:

import requests

from http.client import HTTPConnection
HTTPConnection._http_vsn_str = 'HTTP/1.0'

requests.get('http://example.com')
Answered By: Zero