Getting final URL with a URL that redirects using Python

[11150105713]

The Spotify API sends you back a URL when authenticating. This URL, redirects you to a previously specified redirect URI (in my case http://localhost:5000) with some parameters that I am after. But so far I can only get to this final URL if I copy paste the URL sent by Spotify into a browser. My question is: how can I obtain this final URL using the redirect URL without a browser, all done only with python.

Obtaining the URL:

def authenticate_user():
auth_request = requests.get(ENPOINT_USER_AUTH, {
    'client_id': CLIENT_ID,
    'response_type': 'code',
    'redirect_uri': 'http://localhost:5000/',
    'scope': 'playlist-modify-private'
})

The result URL:

https://accounts.spotify.com/es-ES/login?continue=https%3A%2F%2Faccounts.spotify.com%2Fauthorize%3Fscope%3Dplaylist-modify-private%26response_type%3Dcode%26redirect_uri%3Dhttp%253A%252F%252Flocalhost%253A5000%252F%26client_id%3D3adbd9e...1a42dccff57

Copy-paste into browser I get a new URL:

http://localhost:5000/?code=AQAVgnC8cnqQ....tnLd4dKlU

How can I obtain this final URL just with code? No browsers involved?

Some posts mention urllib, but I have tried to

result= urllib.request.urlopen(auth_request.url)

And it returns the same exact URL.

Any help much appreciated.