Subreddit Tweeter

#!/usr/bin/env python2

import requests
import tweepy

ACCESS_TOKEN = ''
ACCESS_TOKEN_SECRET = ''
CONSUMER_KEY = ''
CONSUMER_SECRET = ''
TAGS = '#Python #Programming'
SUBREDDIT = 'python'
NUMBER_OF_POSTS = 30

def get_reddit_posts(subreddit, number_of_posts):
    reddit = requests.get('http://www.reddit.com/r/{}/new/.json?limit={}'
                              .format(subreddit, number_of_posts),
                          headers={'User-Agent': 'Reddit Tweeter'})
    submissions = reddit.json()['data']['children']
    submissions = [{'id': s['data']['id'],
                    'title': s['data']['title'],
                    'url': 'http://redd.it/{}'.format(s['data']['id'])
                   } for s in submissions]
    return submissions

def tweet(submissions):
    auth = tweepy.OAuthHandler(CONSUMER_KEY, CONSUMER_SECRET)
    auth.set_access_token(ACCESS_TOKEN, ACCESS_TOKEN_SECRET)
    api = tweepy.API(auth)
    for each in submissions:
        # Add the url and the tags to the tweet
        tweet = u'{} {}'.format(each['url'], TAGS)
        title_length = len(each['title'])
        title = None
        if title_length < 139 - len(tweet):
            # The whole title fits in the tweet
            title = each['title']
        else:
            # If the title doesn't fit, make it end with `...`
            title = u'{}...'.format(each['title'][:139 - len(tweet) - 4])
        tweet = u'{} {}'.format(title, tweet)
        print(u'[bot] posting: {}'.format(tweet))
        # Try to post the tweet
        try:
            api.update_status(tweet)
        except tweepy.TweepError, e:
            if e.message[0]['code'] == 187:
                print('[bot] Tweet is a duplicate')
                continue

if __name__ == '__main__':
    submissions = get_reddit_posts(SUBREDDIT, NUMBER_OF_POSTS)
    tweet(submissions)