The GData (Google data) APIs provide a simple protocol for reading
and writing data on the web. Each of the following Google services
provides a Google data API:

  * Base
  * Blogger
  * Calendar
  * Code Search
  * Contacts
  * Document List
  * Google Apps Provisioning
  * Notebook
  * Picasa Web Albums
  * Spreadsheets
  * YouTube

The Google data Python client library provides a library and source
code that make it easy to access data through Google data APIs.