ptwobrussell/Mining-the-Social-Web-2nd-Edition — pull request #61 by rokgomiscek (2013-07-25 19:45:31+00:00)
Title: Update Chapter 9 - Twitter Cookbook.ipynb

Example 19 throws an error if it encounters a protected account:
ids += response['ids']
TypeError: 'NoneType' object is not subscriptable