reddit_oauth.py

import praw, requests
from requests.auth import HTTPBasicAuth

def connect_reddit(oauth_key, oauth_secret, username, password, useragent, oauth_scopes={}):
	r = praw.Reddit(user_agent=useragent)
	
	# Get oauth token
	client_auth = HTTPBasicAuth(oauth_key, oauth_secret)
	headers = {"User-Agent": useragent}
	data = {"grant_type": "password", "username": username, "password": password}
	response = requests.post("https://www.reddit.com/api/v1/access_token", auth=client_auth, headers=headers, data=data)
	if not response.ok:
		print("Received error code {}: {}".format(response.status_code, response.reason))
		return None
	response_content = response.json()
	if "error" in response_content and response_content["error"] != 200:
		print("Received error: {}".format(response_content["error"]))
		return None
	
	# Init praw oauth
	token = response_content["access_token"]
	r.set_oauth_app_info(oauth_key, oauth_secret, "http://example.com/unused/redirect/uri")
	r.set_access_credentials(oauth_scopes | {"identity"}, access_token=token)
	r.config.api_request_delay = 1
	
	return r