Tornado-mysql

-Show MySQL warnings after execute query.
-Fix MySQLError may be wrapped with OperationalError while connectiong. (274)
-SSCursor no longer attempts to expire un-collected rows within __del__,
delaying termination of an interrupted program; cleanup of uncollected
rows is left to the Connection on next execute, which emits a
warning at that time. (287)

0.6.3 -Fixed multiple result sets with SSCursor.
-Fixed connection timeout.
-Fixed literal set syntax to work on Py2.6.
-Allow for mysql negative values with 0 hour timedelta.
-Added Connection.begin().

0.6.2 -Fixed old password on Python 3.
-Added support for bulk insert in Cursor.executemany().
-Added support for microseconds in datetimes and dates before 1900.
-Several other bug fixes.

-Cursor.fetchall() and .fetchmany now return list, not tuple
-Allow "length of auth-plugin-data" = 0
-Cursor.connection references connection object without weakref

-Improved PyPy support
-Added IPv6 support
-Added Thing2Literal for Django/MySQLdb compatibility
-Removed errorhandler
-Fixed GC errors
-Improved test suite
-Many bug fixes
-Many performance improvements

-Implementation of SSL support
-Implementation of kill()
-Cleaned up charset functionality
-Fixed BIT type handling
-Connections raise exceptions after they are close()'d
-Full Py3k and unicode support

-Fixed error handling to include the message from the server and support
multiple protocol versions.
-Implemented ping()
-Implemented unicode support (probably needs better testing)
-Removed DeprecationWarnings
-Ran against the MySQLdb unit tests to check for bugs
-Added support for client_flag, charset, sql_mode, read_default_file,
use_unicode, cursorclass, init_command, and connect_timeout.
-Refactoring for some more compatibility with MySQLdb including a fake
pymysql.version_info attribute.
-Now runs with no warnings with the -3 command-line switch
-Added test cases for all outstanding tickets and closed most of them.
-Basic Jython support added.
-Fixed empty result sets bug.
-Integrated new unit tests and refactored the example into one.
-Fixed bug with decimal conversion.
-Fixed string encoding bug. Now unicode and binary data work!
-Added very basic docstrings.

to make it more plugin replaceable for the other mysql clients.
-Changed pack()/unpack() calls so it runs on 64 bit OSes too.
-Added support for unix_socket.
-Added support for no password.
-Renamed decorders to decoders.
-Better handling of non-existing decoder.