Quick script to ban a user from every public subreddit you moderate

mass_ban.py

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

import praw
import requests
import sys

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

def ban_all(users):
    r = praw.Reddit('mass_ban.py, running via /u/{}'.format(USERNAME))
    r.login(USERNAME, PASSWORD)
    for subreddit in r.get_my_moderation():
        sub_settings = subreddit.get_settings()
        if sub_settings['subreddit_type'] == 'public':
            for user in users:
                try:
                    subreddit.ban(user)
                    print('banned /u/{} from /r/{}'.format(user, subreddit.display_name))
                except requests.exceptions.HTTPError:
                    break

if __name__ == '__main__':
    ban_all(sys.argv[1:])