requires pip packages: requests, requests_oauthlib

twitter_authorize.py

import requests
from requests_oauthlib import OAuth1Session

client_key = ''
client_secret = ''

request_token_url = 'https://api.twitter.com/oauth/request_token'

oauth = OAuth1Session(client_key, client_secret=client_secret)
fetch_response = oauth.fetch_request_token(request_token_url)

resource_owner_key = fetch_response.get('oauth_token')
resource_owner_secret = fetch_response.get('oauth_token_secret')

base_authorization_url = 'https://api.twitter.com/oauth/authorize'

authorization_url = oauth.authorization_url(base_authorization_url)
print('Please go here and authorize,', authorization_url)

verifier = input('Authorization PIN: ')

access_token_url = 'https://api.twitter.com/oauth/access_token'

oauth = OAuth1Session(client_key,
                      client_secret=client_secret,
                      resource_owner_key=resource_owner_key,
                      resource_owner_secret=resource_owner_secret,
                      verifier=verifier)

oauth_tokens = oauth.fetch_access_token(access_token_url)

resource_owner_key = oauth_tokens.get('oauth_token')
resource_owner_secret = oauth_tokens.get('oauth_token_secret')

protected_url = 'https://api.twitter.com/1.1/statuses/user_timeline.json'

r = oauth.get(protected_url)

print(r.text)