import praw
import time

reddit = praw.Reddit(client_id='xx',
                     client_secret='yy',
                     username='ww',
                     password='zz',
                     user_agent='PrawTut',
                     )

subreddit = reddit.subreddit('test')
hot_python = subreddit.hot()
hot_python = subreddit.hot(limit=5)

for submission in hot_python:
    if not submission.stickied:
        comments = submission.comments
        for comment in comments:
            print(20 * '-')
            print(comment.body)
            if len(comment.replies) > 0:
                for reply in comment.replies:
                    print('REPLY:')
                    print("\t" + reply.body)
                    if "dog" in comment.body:
                        print(comment.body)
            print("String with \"dog\" found in comment " + comment.id)
            comment.reply("I also love dogs! [Here](http://i.imgur.com/LLgRKeq.jpg) is an image of one!")
            print("Replied to comment " + comment.id)

    print
    "Sleeping for 10 seconds..."
    # Sleep for 10 seconds...
    time.sleep(10)