This script will change the mode of a subreddit. First you either need to make a file named 'credentials' that is in the same directory as the script that has your login info and subreddit or you can just replace the info in the script directly. Just invoke the script with the subreddit mode as an argument (eg: `python3 change_subreddit_mode.py …

change_subreddit_mode.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import sys
import praw

try:
    from credentials import *  #NOQA
except:
    USERNAME = 'username'
    PASSWORD = 'password'
    SUBREDDIT = 'subreddit'

def change_subreddit_mode(mode):
    reddit = praw.Reddit("/r/{}'s subreddit mode switcher".format(SUBREDDIT)
    reddit.login(USERNAME, PASSWORD)
    subreddit = reddit.get_subreddit(SUBREDDIT)
    r.update_settings(subreddit, content_options=mode)


if __name__ == '__main__':
    _, mode = sys.argv
    change_subreddit_mode(mode)