ANN: eGenix mxODBC Connect 2.1.1 - Python Database Interface

eGenix Team: M.-A. Lemburg info at
Wed Nov 19 09:56:19 CET 2014

             mxODBC Connect

                      Python Database Interface

                            Version 2.1.1

 mxODBC Connect is our commercially supported client-server product for
       connecting Python applications to relational databases
                 in a truly platform independent way.

This announcement is also available on our web-site for online reading:


The mxODBC Connect Database Interface for Python allows users to
easily connect Python applications to all major databases on the
market today in a highly portable, convenient and secure way.

Python Database Connectivity the Easy Way

Unlike our mxODBC Python extension, mxODBC Connect is designed as
client-server application, so you no longer need to find production
quality ODBC drivers for all the platforms you target with your Python

Instead you use an easy to install royalty-free Python client library
which connects directly to the mxODBC Connect database server over the

This makes mxODBC Connect a great basis for writing cross-platform
multi-tier database applications and utilities in Python, especially
if you run applications that need to communicate with databases such
as MS SQL Server and MS Access, Oracle Database, IBM DB2 and Informix,
Sybase ASE and Sybase Anywhere, MySQL, PostgreSQL, SAP MaxDB and many
more, that run on Windows or Linux machines.

Ideal for Database Driven Client Applications

By removing the need to install and configure ODBC drivers on the
client side and dealing with complicated network setups for each set
of drivers, mxODBC Connect greatly simplifies deployment of database
driven client applications, while at the same time making the network
communication between client and database server more efficient and
more secure.

For more information, please have a look at the mxODBC Connect product
page, in particular, the full list of available features.

For more information, please see the product page:


mxODBC Connect 2.1.0 is a patch level release of our successful mxODBC
Connect product. We have put great emphasis on enhancing the TLS/SSL
setup of the mxODBC Connect product, addressing recent attacks on
SSLv3 and improving the security defaults.

Security Enhancements

 * Updated included eGenix pyOpenSSL to 0.13.6, which includes OpenSSL
   1.0.1j and enables the TLS_FALLBACK_SCSV protection against
   protocol downgrade attacks.

 * OpenSSL cipher string list updated to use the best available
   ciphers in OpenSSL 1.0.1j per default and support perfect forward

 * OpenSSL context options setup to disallow weak protocol features.

 * Disabled SSLv3 for the mxODBC Connect Client in response to the
   recent POODLE attack on SSLv3.

   mxODBC Connect Client 2.1.1 will not be able to communicate with
   mxODBC Connect Server 2.1.0 and earlier when using SSL mode. The
   error message looks like this: [Error] [('SSL routines',
   'SSL23_GET_SERVER_HELLO', 'unsupported protocol')] (using
   pyOpenSSL) or [SSLError] [Errno 1] _ssl.c:493: error:1408F10B:SSL
   routines:SSL3_GET_RECORD:wrong version number (using the ssl

 * Enabled TLS v1, v1.1 and v1.2 for the mxODBC Connect Server in SSL
   mode and have it use the best possible protocol when talking to a

   The server will still support SSLv3 for backwards compatibility
   reasons, since older mxODBC Connect Clients only support
   SSLv3. This will be changed in the next major/minor mxODBC Connect
   Server release.

 * Fixed a linker setting on Linux to have the mxODBC Connect Server
   use the embedded OpenSSL libraries instead of the system ones.

 * Improved the protocol handlers for SSL connection setups using
   mixed plain text/TLS connections to renew the session id after
   having established the TLS session.

mxODBC Connect Enhancements

 * Fixed a problem where connection/cursor.messages could not be
   accessed from the client side.

 * mxODBC Connect Client is now also available as web installer,
   greatly simplifying the installation of the client. It is now
   possible to install the client using a single pip command:

   pip install egenix-mx-base egenix-mxodbc-connect-client egenix-pyopenssl

 * Upgraded eGenix PyRun used for mxODBC Connect Server on Linux to

 * Upgraded the Python version used for mxODBC Connect Server on
   Windows to 2.7.8.

Asynchronous Processing

 * Fixed a problem which prevented the mxODBC Connect Client to
   connect to the server when using both gevent integration and the
   Python ssl module for communication.

mxODBC API Enhancements

 * Upgraded the mxODBC Connect Server to mxODBC 3.3.1.

SQL Server

 * Documented a solution for a problem with the SQL Server 2012 parser
   complaining about not being able to deduce types of some operations
   using more than one bound variable, e.g. "col1 >= ? + ?".


 * Improved the Teradata ODBC driver setup instructions to address
   some common gotchas when setting up mxODBC to work with these

 * Fixed a problem with Teradata and the test suite which resulted in
   an error "[Teradata][ODBC Teradata Driver] Beyond
   SQL_ACTIVE_STATEMENTS limit". The driver needs an explicit call to
   cursor.flush() to close any open result sets before running commits
   or rollbacks.


 * Fixed a problem in cursor.getcolattributes() that caused errors to
   be ignored.

 * Added better protection against ODBC driver bugs in getenvattr().

 * Fixed an attribute error when using the NamespaceRowFactory

 * Fixed a deprecation warning when using the NamespaceRowFactory

For the full set of changes, including those of the 2.1 series of
mxODBC Connect, please check the mxODBC Connect change log:


You are encouraged to upgrade to this latest mxODBC Connect release.
When upgrading, please always upgrade both the server and the client
installations to the same version - even for patch level releases.

We will give out 20% discount coupons for upgrade purchases going from
mxODBC Connect Server 1.x to 2.1 and 50% coupons for upgrades from
mxODBC 2.x to 2.1. Please contact the Sales Team
(sales at with your existing license serials for details.

Users of our stand-alone mxODBC product will have to purchase new
licenses from our online shop in order to use mxODBC Connect.

You can request free 30-day evaluation licenses by visiting our
web-site or writing to sales at, stating your name (or the
name of the company) and the number of eval licenses that you need.


The download archives as well as instructions for installation and
configuration of the product can be found on the product page:

If you want to try the package, jump straight to the download

Fully functional evaluation licenses for the mxODBC Connect Server are
available free of charge:

mxODBC Connect Client is always free of charge.


Commercial support for this product is available from

Please see

for details about our support offerings.


About Python (

    Python is an object-oriented Open Source programming language
    which runs on all modern platforms. By integrating ease-of-use,
    clarity in coding, enterprise application connectivity and rapid
    application design, Python establishes an ideal programming
    platform for today's IT challenges.

About eGenix (

    eGenix is a software project, consulting and product company
    focusing on expert project services and professional quality
    products for companies, Python users and developers.

Marc-Andre Lemburg

Professional Python Services directly from the Source  (#1, Nov 19 2014)
>>> Python Projects, Consulting and Support ...
>>> mxODBC.Zope/Plone.Database.Adapter ...
>>> mxODBC, mxDateTime, mxTextTools ...
2014-11-11: Released eGenix pyOpenSSL 0.13.6 ...

::::: Try our mxODBC.Connect Python Database Interface for free ! :::::: Software, Skills and Services GmbH  Pastor-Loeh-Str.48
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