reply_bot.py

import os
import re
import praw
import time

SKIP = ['tacobellscannon']  # users to skip replies to
WORDS = ['aword', 'word2']  # words to match
REPLY = "You said, '{0}'. Thanks."  # template for replies
LAUNCHED = time.time()


def main():
    reddit = praw.Reddit(user_agent='/r/ouija replier',
                         client_id='CLIENT_ID', client_secret='CLIENT_SECRET',
                         username='USERNAME', password='PASSWORD')
    for cmt in reddit.subreddit('askouija').stream.comments():
        parse_comment(cmt)


def skip_comment(cmt):
    # check if the OP is in the ignore list
    # or if the comment predates the launch of the script
    to_skip = [cmt.author in SKIP,
               cmt.created_utc < LAUNCHED]
    return any(to_skip)


def parse_comment(cmt):
    if skip_comment(cmt):
        return  # Skip comment
    for word in WORDS:
        # look for exact word match in comment, ignoring case
        if re.search(r'\b' + word + r'\b', cmt.body, re.IGNORECASE): 
            cmt.reply(REPLY.format(word)) # reply to comment using our template
            break  # break out of loop checking for words since we got a match


if __name__ == '__main__':
    main()