Very glad this library existed when I ran a giveaway for my book - I completely zoned to the fact that twitter limits the number of retweets you can track to the most recent 20 in the UI, and the most recent 100 in the API, so I had to scramble to write some code to keep track of this by polling the API every few hours and logging all users who had retweeted a post.

Anaconda made it dead simple, and I had a program running within 15minutes to save my butt. I wouldn't recommend kicking off a giveaway without handling the retweet tracking portion first, but I can def recommend anaconda.