pyhs is a pure Python client (with optional C speedups) for HandlerSocket plugin to MySQL database. In short, it provides access to the data omitting the SQL engine in a NoSQL-like interface. It allows all simple operations (get, insert, update, delete) over indexed data to perform considerably faster than by usual means.
See this article for more details about HandlerSocket.
This client supports both read and write operations but no batching at the moment.
Project is open-source and always available on the bitbucket: http://bitbucket.org/excieve/pyhs/