Quick script to ban a user from every subreddit you moderate (use wisely!)

ban_all.py

#!/usr/bin/env python3

import json
import urllib.request
import time
import re
import signal
import sys
from urllib.parse import urlencode
import http.cookiejar
from contextlib import contextmanager

def p(data, end='\n'):
    print(time.strftime(
        '\r\033[K\033[2K[\033[31m%y\033[39m/\033[31m%m\033[39m/\033[31m%d'
        '\033[39m][\033[31m%H\033[39m:\033[31m%M\033[39m:\033[31m%S\033[39m] ') + data, end=end)


def sigint_handler(signal, frame):
    '''Handles ^c'''
    p('Recieved SIGINT! Exiting...')
    sys.exit(0)


class Reddit(object):
    """Base class to perform the tasks of a redditor."""

    def __init__(self, username, password):
        self.username = username
        self.password = password
        self.cj = http.cookiejar.CookieJar()
        self.opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(self.cj))
        self.opener.addheaders = [('User-agent', 'ban-all.py v0')]
        self._login()

    def _request(self, url, body=None):
        if body is not None:
            body = urlencode(body).encode('utf-8')
        with self.opener.open(url, data=body) as w:
            time.sleep(2)
            return json.loads(w.read().decode('utf-8'))

    def _login(self):
        p("Logging in as {}.".format(self.username))
        body = {'user': self.username, 'passwd': self.password, 'api_type': 'json'}
        resp = self._request('https://www.reddit.com/api/login', body)
        self.modhash = resp['json']['data']['modhash']

    def post(self, url, body):
        """Sends a POST to the url and returns the json as a dict."""

        if 'api_type' not in body:
            body['api_type'] = 'json'

        body['uh'] = self.modhash

        return self._request(url, body)

    def get(self, url):
        """Sends a GET to the url and returns the json as a dict."""
        if '.json' not in url:
            url += '.json'
        return self._request(url)

def main(USERNAME, PASSWORD, users):
    r = Reddit(USERNAME, PASSWORD)

    reddits = [i['data']['display_name'] for i in r.get(
        'http://www.reddit.com/reddits/mine/moderator.json')['data']['children']]

    for reddit in reddits:
        for user in users:
            p('Banning {} from /r/{}'.format(user, reddit))
            body = {
                'action': 'add', 'type': 'banned', 'name': user, 'id': '#banned', 'r': reddit}
            r.post('http://www.reddit.com/api/friend', body)


if __name__ == '__main__':
    signal.signal(signal.SIGINT, sigint_handler)
    args = sys.argv[1:]
    main(args[0], args[1], args[2:])