MySQL Lists are EOL. Please join:

List:Announcements« Previous MessageNext Message »
From:Sunanda Menon Date:September 10 2013 11:57am
Subject:MySQL Connector/Python 1.1.1-alpha has been released
View as plain text  
Dear MySQL users,

MySQL Connector/Python 1.1.1 is the next alpha version of
the 1.1 release series of the pure Python database driver
for MySQL. It is intended to introduce users to the new features.

This release is not feature complete but it should be stable
enough for users to understand the new features and how we
expect them to work.

As is the case with all non-GA releases, it should not be used
in any production environment.

MySQL Connector/Python version 1.1.1-alpha is compatible with MySQL Server
versions 5.5 and greater, but should work with earlier versions
(greater than 4.1). Python 2.6 and 2.7, as well as Python 3.1
and greater are supported.

MySQL Connector/Python 1.1.1-alpha is available for download from

The ChangeLog file included in the distribution contains a brief summary
of changes in MySQL Connector/Python 1.1.1. For a more complete list of
changes, see below or online at:

Changes in MySQL Connector/Python 1.1.1 (2013-09-10, Alpha)

Functionality Added or Changed

     * Output for individual unit tests did not show timings, making
       it more difficult to debug problems that involve a change in
       test execution time. now has a new --stats option
       that runs tests and shows elapsed time for each.
       It is also possible to save the data to a MySQL server. When
       the --stats-host option is given with other options such as
       --stats-user, results are saved to a table called
       myconnpy_X_Y_Z. The table contains the name of the test case
       and columns that combine Python and MySQL versions; for
       example, py27my55 or py33my56.
       For example, to see the difference between MySQL 5.1 and 5.6,
       using Python 2.7, after running the test cases for both using
       Connector/Python 1.1.0, use this statement:
       SELECT test_case, py27my51, py27my56, (py27my56-py27my51) AS diff51
       FROM myconnpy_1_1_0 WHERE (py27my56-py27my51) > 0.5;
       (Bug #17028999)

     * MySQL Connector/Python now supports simple connection pooling
       that has these characteristics:

          + A pool opens a number of connections and handles thread
            safety when providing connections to requesters.

          + The size of a connection pool is configurable at pool
            creation time. It cannot be resized thereafter.

          + A connection pool can be named at pool creation time. If
            no name is given, one is generated using the connection

          + The connection pool name can be retrieved from the
            connection pool or connections obtained from it.

          + It is possible to have multiple connection pools. This
            enables applications to support pools of connections to
            different MySQL servers, for example.

          + For each connection request, the pool provides the next
            available connection. No round-robin or other scheduling
            algorithm is used.

          + It is possible to reconfigure the connection parameters
            used by a pool. These apply to connections obtained from
            the pool thereafter. Reconfiguring individual connections
            obtained from the pool by calling the connection config()
            method is not supported.
            Applications that can benefit from connection-pooling
            capability include:

          + Middleware that maintains multiple connections to
            multiple MySQL servers and requires connections to be
            readily available.

          + Web sites that can have more "permanent" connections open
            to the MySQL server.

       The connection pooling implementation involves these interface

          + A new module, mysql.connector.pooling, provides two
            classes: MySQLConnectionPool instantiates and manages
            connection pools, and PooledMySQLConnection is similar to
            MySQLConnection but is used for connections that are part
            of a connection pool.

          + A new exception, PoolError, occurs for pool-related
            exceptions. PoolError is a subclass of Error.
       For more information, see Connector/Python Connection Pooling

     * Connector/Python now includes a mysql.connector.django module
       that provides a Django backend for MySQL. This backend
       supports new features found in MySQL 5.6 such as fractional
       seconds support for temporal data types. For more information,
       see Connector/Python Django Backend

   Bugs Fixed

     * Following fetchone() or fetchmany(), the result returned by
       fetchall() was missing one row. (Bug #17041412)

     * Previously, executing a statement after the connection was
       closed raised an OperationalError with an unclear error.
       Connector/Python now returns the client error 2006, MySQL
       Server has gone away, with an extra message.
       The Error() class has been extended to accept a new argument,
       extra_msg. When given, it is appended between brackets. For
       example: [2000] Unknown MySQL Error (Some extra message) (Bug

     * LOAD DATA LOCAL INFILE failed for files approximately 14MB or
       larger. (Bug #17002411)

     * An InternalError was raised during transaction rollback if
       there were unread results. The MySQLConnection.rollback()
       method now consumes unread results instead of raising an
       error. (Bug #16656621)

     * Python 2.6 and 2.7 raised a UnicodeDecodeError when
       unicode_literals was used and a database name contained
       nonlatin Unicode characters. (Bug #16655208)

     * An unclear OperationalError was raised if a cursor object was
       closed while there were unread results. Connector/Python now
       raises an InternalError indicating that there are still unread
       results. This provides information that to avoid the error it
       is necessary to consume the result by reading all rows. (Bug
       #67649, Bug #17041240)

     * The MySQLCursor.executemany() method raised an exception when
       a SQL function was used as a column value when executing an
       INSERT statement. (Bug #69675, Bug #17065366)



The source distribution includes the manual in various formats under
the docs/ folder.

Reporting Bugs

We welcome and appreciate your feedback and bug reports:


On Behalf of the MySQL RE team at Oracle,

Sunanda Menon
MySQL Connector/Python 1.1.1-alpha has been releasedSunanda Menon10 Sep