whitelist.py

import requests
import json

# config
client_id=''
client_secret=''
username = ''
password = ''
subreddit_name = '' # replace with your subreddit name
domains = [] # comma separated domains go here
user_agent = 'reddit alpha whitelist uploader v1.0 by u/Jakeable running as u/' + username

# request bearer token
client_auth = requests.auth.HTTPBasicAuth(client_id, client_secret)
post_data = {"grant_type": "password", "username": username, "password": password}
headers = {"User-Agent": user_agent}
response = requests.post("https://www.reddit.com/api/v1/access_token", auth=client_auth, data=post_data, headers=headers)
bot_auth = response.json()['access_token']

# update whitelist data
bearer = "bearer " + bot_auth
headers = {"Authorization": bearer, "User-Agent": user_agent, "Content-Type": 'application/json'}

url = "https://oauth.reddit.com/api/v1/" + subreddit_name + "/submit_validations"

data = {"ruleLinkListPermission":"whitelist","ruleLinkWhitelist":domains}
resp = requests.patch(url, headers=headers, data=json.dumps(data))
print(resp.text)