Garfield Bot

import praw
import lasagnaconfig
import time
import os
import random
import traceback

#runs login
def bot_login():
    print('logging in')

    r = praw.Reddit(username=lasagnaconfig.username,
                    password=lasagnaconfig.password,
                    client_id=lasagnaconfig.client_id,
                    client_secret=lasagnaconfig.client_secret,
                    user_agent="Posts a garfield comic any time lasagna is mentioned in the top 25000 comments in r/all")
    print('logged in ' + lasagnaconfig.username)
    return r

#searches for comments with 'lasagna' mentioned.
def run_bot(r, comments_replied_to):
    print('obtaining 25000 comments')
    try:
        for comment in r.subreddit('all').comments(limit=25000):
            if "lasagna" in comment.body.lower() and comment.id not in comments_replied_to_lasagna and comment.author != r.user.me():
                year = random.randint(1988, 2016)
                month = random.randint(1, 12)
                day = random.randint(1, 28)
                print("String with lasagna found in comment " + comment.id)
                comment.reply(
                    'Did somebody say ' + '[lasagna?](http://www.gocomics.com/garfield/%s/%s/%s)' % (year, month, day,))
                print('Replied to comment ' + comment.id)

                comments_replied_to_lasagna.append(comment.id)
                with open("comments_replied_to_lasagna.txt", "a") as f:
                    f.write(comment.id + "\n")
    except:
        traceback.print_exc()
        print('Resuming in 10')
        time.sleep(10)

    print("Sleeping for 1 min")
    time.sleep(60)


def get_saved_comments():
    if not os.path.isfile("comments_replied_to.txt"):
        comments_replied_to = []
    else:
        with open("comments_replied_to.txt", "r") as f:
            comments_replied_to = f.read()
            comments_replied_to = comments_replied_to.split("\n")
    return comments_replied_to


comments_replied_to_lasagna = get_saved_comments()
r = bot_login()

while True:
    run_bot(r, comments_replied_to_lasagna)