old_contents: import praw
  import time
  import os
  
  REPLY_MESSAGE = "Friendly reminder: 'UTA' refers to UT Arlington. UT Austin is simply 'UT'.\n\nIf you actually meant UT Arlington then ignore this post."
  
  
  def authenticate():
      print("authenticating")
      login_info=retrieve_credentials()
      reddit=praw.Reddit(username=login_info[0],
  			password=login_info[1],
  			client_id=login_info[2],
  			client_secret=login_info[3], 
              user_agent="A bot to remind people that UTA is UT Arlington v0.1")
      print("authenticated as {}".format(reddit.user.me()))
      return reddit
  
  
  def run_bot(reddit, replied):
      print("getting submissions")
      for submission in reddit.subreddit('UTAustin').new(limit=5):
          if (" uta" in submission.title or " uta" in submission.selftext 
              or " UTA" in submission.title or " UTA" in submission.selftextor 
              or "UTA " in submission.title) and submission.id not in replied:
  
              print("string with 'UTA' found in " + submission.id)
              submission.reply(REPLY_MESSAGE)
              print("replied to submission " + submission.id)
  
              replied.add(submission.id)
              with open("replied.txt", "a") as i:
                  i.write(submission.id + "\n")
  
      print("sleeping for 30 seconds")
      # sleep for 30 seconds
      time.sleep(30)
  
  
  def get_replied():
      if not os.path.isfile("replied.txt"):
          replied = set()
      else:
          replied = set(open("replied.txt").read().split("\n"))
          replied = set(filter(None, replied))
      return replied
  
  
  def retrieve_credentials():
      login_info = [os.environ['REDDIT_USERNAME'], os.environ['REDDIT_PASSWORD'], 
      os.environ["CLIENT_ID"], os.environ["CLIENT_SECRET"]]
      return login_info
  
  
  def main():
      replied = get_replied()
      reddit = authenticate()
      while True:
          run_bot(reddit, replied)
  
  
  # main method
  if __name__ == "__main__":
      main()
  
new_contents: import praw
  import time
  import os
  
  REPLY_MESSAGE = "Friendly reminder: 'UTA' refers to UT Arlington. UT Austin is simply 'UT'.\n\nIf you actually meant UT Arlington then ignore this post."
  
  
  def authenticate():
      print("authenticating")
      login_info=retrieve_credentials()
      reddit=praw.Reddit(username=login_info[0],
  			password=login_info[1],
  			client_id=login_info[2],
  			client_secret=login_info[3], 
              user_agent="A bot to remind people that UTA is UT Arlington v0.1")
      print("authenticated as {}".format(reddit.user.me()))
      return reddit
  
  
  def run_bot(reddit, replied):
      print("getting submissions")
      for submission in reddit.subreddit('UTAustin').new(limit=5):
          if (" uta" in submission.title or " uta" in submission.selftext 
              or " UTA" in submission.title or " UTA" in submission.selftext 
              or "UTA " in submission.title) and submission.id not in replied:
  
              print("string with 'UTA' found in " + submission.id)
              submission.reply(REPLY_MESSAGE)
              print("replied to submission " + submission.id)
  
              replied.add(submission.id)
              with open("replied.txt", "a") as i:
                  i.write(submission.id + "\n")
  
      print("sleeping for 30 seconds")
      # sleep for 30 seconds
      time.sleep(30)
  
  
  def get_replied():
      if not os.path.isfile("replied.txt"):
          replied = set()
      else:
          replied = set(open("replied.txt").read().split("\n"))
          replied = set(filter(None, replied))
      return replied
  
  
  def retrieve_credentials():
      login_info = [os.environ['REDDIT_USERNAME'], os.environ['REDDIT_PASSWORD'], 
      os.environ["CLIENT_ID"], os.environ["CLIENT_SECRET"]]
      return login_info
  
  
  def main():
      replied = get_replied()
      reddit = authenticate()
      while True:
          run_bot(reddit, replied)
  
  
  # main method
  if __name__ == "__main__":
      main()
  
subject: fix typo