require tweepy

block_incoming.py

# -*- coding: utf-8 -*-
import tweepy

consumer_key = '' #set consumer key
consumer_secret = '' #set consumer secret

auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
auth_url = auth.get_authorization_url()
print 'Please authorize: ' + auth_url
verifier = raw_input('PIN: ').strip()
auth.get_access_token(verifier)
ACCESS_KEY = auth.access_token
ACCESS_SECRET = auth.access_token_secret
auth.set_access_token(ACCESS_KEY, ACCESS_SECRET)
api = tweepy.API(auth)
print 'Hello' + api.me().name

request_users = api.friendships_incoming()
for target in request_users:
    print 'block ' + str(target)
    api.create_block(target)

print 'end'