如何在我的 python 代码中使我的“用户代理标头”始终保持最新？

Question

In my research I find several ways to create a fake User-Agent and also hide my User-Agent when making requests.

But what I'm actually looking for is how do I keep my User-Agent always up to date without needing to get the value manually.

Manually way is search on Google for example:

Is there a correct method for this?

For example, currently the User-Agent I use to make requests is this:

import requests
headers = {
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36"
    }

url = f'https://XXXXXXXXXXXXXXXXX.com'
response = requests.get(url, headers=headers).json()

But the version of Chrome that is appearing is already a much older version of the one I currently use. I'd like to know if there's a way to keep this up to date without having to manually modify it every time!

Answer 1

you can use fake user agent:

https://github.com/hellysmile/fake-useragent

it has a lot of options and keep user agent updated.

from fake_useragent import UserAgent
ua = UserAgent()

ua.ie
# Mozilla/5.0 (Windows; U; MSIE 9.0; Windows NT 9.0; en-US);
ua.msie
# Mozilla/5.0 (compatible; MSIE 10.0; Macintosh; Intel Mac OS X 10_7_3; Trident/6.0)'
ua['Internet Explorer']
# Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB7.4; InfoPath.2; SV1; .NET CLR 3.3.69573; WOW64; en-US)
ua.opera
# Opera/9.80 (X11; Linux i686; U; ru) Presto/2.8.131 Version/11.11
ua.chrome
# Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.2 (KHTML, like Gecko) Chrome/22.0.1216.0 Safari/537.2'
ua.google
# Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/537.13 (KHTML, like Gecko) Chrome/24.0.1290.1 Safari/537.13
ua['google chrome']
# Mozilla/5.0 (X11; CrOS i686 2268.111.0) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11
ua.firefox
# Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:16.0.1) Gecko/20121011 Firefox/16.0.1
ua.ff
# Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:15.0) Gecko/20100101 Firefox/15.0.1
ua.safari
# Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5355d Safari/8536.25

# and the best one, random via real world browser usage statistic
ua.random

Answer 2

You can get your browsers user agent in javascript on the console with navigator.userAgent . How can you automatically have this value stored into your python scripts?? I'm not really aware of a way todo that.