twitter_autoblock_rts.py

#!/usr/bin/env python2.7
"""To use:
First, run `pip install python-twitter`

Then, you'll need to create a twitter application at apps.twitter.com.  This
will give you the API key & secret.  Set its permissions to be Read & Write.
Then you'll generate an access token on the same page and put all four values
in the appropriate variables below.

Once that's done, just run ./twitter_autoblock_rts.py <some-tweet-id>
Optionally give the --silent flag to block everyone without prompts
"""

import twitter
import argparse

parser = argparse.ArgumentParser(description="Block all users that retweeted a given tweet")
parser.add_argument('tweet_id', metavar='tweet-id', type=int, help='tweet id')
parser.add_argument('--silent', dest='silent', action='store_const',
                    const=True, default=False,
                    help="Don't ask for each user, just block 'em all")
args = parser.parse_args()

tweet_id = args.tweet_id
print "Getting retweeters of {}".format(tweet_id)

API_KEY = ""
API_SECRET = ""
ACCESS_TOKEN = ""
ACCESS_TOKEN_SECRET = ""

api = twitter.Api(consumer_key=API_KEY,
                  consumer_secret=API_SECRET,
                  access_token_key=ACCESS_TOKEN,
                  access_token_secret=ACCESS_TOKEN_SECRET)

def block_user(user):
    url = '%s/blocks/create.json' % api.base_url
    resp = api._RequestUrl(url, 'POST', {'screen_name': user.screen_name,
                                         'skip_status': 1})
    print resp
    print "Blocked {}".format(user.screen_name)


for retweeter in api.GetRetweeters(tweet_id):
    user = api.GetUser(retweeter)
    if args.silent:
        block_user(user)
    else:
        confirm = raw_input("Block {}? [Y/n]".format(user.screen_name))
        if confirm != 'n':
            block_user(user)

Based on Shanley's request, automatically block anyone RT'ing a given tweet.
Blocking ★'ers to come