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MySQL Connector/Python 2.2.3 m4 Development Release has been released

MySQL Connector/Python 2.2.3 M4 is the fourth development release of the MySQL Connector Python 2.2 series. This series adds support for the new X DevAPI. The X DevAPI enables application developers to write code that combines the strengths of the relational and document models using a modern, NoSQL-like syntax that does not assume previous experience writing traditional SQL.

To learn more about how to write applications using the X DevAPI, see For more information about how the X DevAPI is implemented in MySQL Connector/Python, and its usage, see

Please note that the X DevAPI requires MySQL Server version 5.7.12 or higher with the X Plugin enabled. For general documentation about how to get started using MySQL as a document store, see

To download MySQL Connector/Python 2.2.3 M4, see the “Development Releases” tab at


Changes in MySQL Connector/Python 2.2.3 (2017-03-22, Milestone 3)

Functionality Added or Changed

* Connector/Python now supports IPv6 target hosts in X DevAPI connection strings.

Bugs Fixed

* The defined_as(statement) method used to create views did not permit a SelectStatement object argument (generated by (Bug #25614860)

* The SelectStatement object returned by failed to provide the order_by() method. (Bug #25519251)

* The pure Python implemention of Protobuf has been replaced by a C++ extension. This enables Connector/Python to support Python 2 and 3 as well as Protobuf 2 and 3. (Bug #25209469)

* import mysqlx caused an error with Python 2.6 on Solaris and EL6 platforms. (Bug #24578507)

* The error message for get_session() failure was incorrect. (Bug #23636962)

* The Collection.find() method failed to work with the LIKE operator or aggregate functions. The Collection.find() method failed to work with several
operators. Support was added for these operators:

+ Nullary Operators: *

+ Unary Operators: !, NOT, +, -, ~

+ Binary Operators: AND, &&, OR, ||, XOR, <>, ^, IS NOT, NOT REGEXP, NOT LIKE, CAST, NOT IN

+ Ternary Operators: NOT BETWEEN

In addition, arrow notation to access JSON columns is now functional (for example, schema.table.column->’$.document field’). (Bug #23567724, Bug #23568207, Bug #25436568, Bug #84585)


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/ORACLE RE Team,
Piotr Obrzut