numexpr 2.4.4 released

2015-09-14 Thread Francesc Alted
=
 Announcing Numexpr 2.4.4
=

Numexpr is a fast numerical expression evaluator for NumPy.  With it,
expressions that operate on arrays (like "3*a+4*b") are accelerated
and use less memory than doing the same calculation in Python.

It wears multi-threaded capabilities, as well as support for Intel's
MKL (Math Kernel Library), which allows an extremely fast evaluation
of transcendental functions (sin, cos, tan, exp, log...)  while
squeezing the last drop of performance out of your multi-core
processors.  Look here for a some benchmarks of numexpr using MKL:

https://github.com/pydata/numexpr/wiki/NumexprMKL

Its only dependency is NumPy (MKL is optional), so it works well as an
easy-to-deploy, easy-to-use, computational engine for projects that
don't want to adopt other solutions requiring more heavy dependencies.

What's new
==

This is a maintenance release which contains several bug fixes, like
better testing on Python3 platform and some harmless data race.  Among
the enhancements, AppVeyor support is here and OMP_NUM_THREADS is
honored as a fallback in case NUMEXPR_NUM_THREADS is not set.

In case you want to know more in detail what has changed in this
version, see:

https://github.com/pydata/numexpr/blob/master/RELEASE_NOTES.rst

Where I can find Numexpr?
=

The project is hosted at GitHub in:

https://github.com/pydata/numexpr

You can get the packages from PyPI as well (but not for RC releases):

http://pypi.python.org/pypi/numexpr

Share your experience
=

Let us know of any bugs, suggestions, gripes, kudos, etc. you may
have.

Enjoy data!

-- 
Francesc Alted
-- 
https://mail.python.org/mailman/listinfo/python-announce-list

Support the Python Software Foundation:
http://www.python.org/psf/donations/


ANN: eGenix mxODBC Plone/Zope Database Adapter 2.2.3

2015-09-14 Thread eGenix Team: M.-A. Lemburg

ANNOUNCING

  mxODBC Plone/Zope Database Adapter

Version 2.2.3

  for the Plone CMS and Zope server platform

  Available for Plone 4.0-4.3 and Plone 5.0,
Zope 2.12 and 2.13, on
Windows, Linux, Mac OS X, FreeBSD and other platforms

This announcement is also available on our web-site for online reading:
http://www.egenix.com/company/news/eGenix-mxODBC-Zope-DA-2.2.3-GA.html


INTRODUCTION

The eGenix mxODBC Zope DA allows you to easily connect your Zope or
Plone CMS installation to just about any database backend on the
market today, giving you the reliability of the commercially supported
eGenix product mxODBC and the flexibility of the ODBC standard as
middle-tier architecture.

The mxODBC Zope Database Adapter is highly portable, just like Zope
itself, and provides a high performance interface to all your ODBC
data sources, using a single well-supported interface on Windows,
Linux, Mac OS X, FreeBSD and other platforms.

This makes it ideal for deployment in ZEO Clusters and Zope hosting
environments where stability and high performance are a top priority,
establishing an excellent basis and scalable solution for your Plone
CMS.

Product page:

http://www.egenix.com/products/zope/mxODBCZopeDA/


NEWS

The 2.2.3 release of our mxODBC Zope/Plone Database Adapter product is
a patch level release of the popular ODBC database interface for Plone
and Zope. It includes these enhancements and fixes:

Feature Updates
---

 * We have integrated a new option to force serialized connects on a
   per Zope connection object basis. This can be used to work around
   bugs in ODBC drivers which are not fully thread-safe in the connect
   phase. The option is disabled per default.

Driver Compatibility Enhancements
-

 * ODBC driver compatibility updated. Upgraded to the latest mxODBC
   3.3.5 release, adding compatibility enhancements for MS SQL
   Server. See the mxODBC 3.3.5 release announcements for full
   details.

Installation Enhancements
-

 * Added pip install compatibility to mxODBC Zope DA by creating
   prebuilt archives and uploading a web installer to PyPI. This can
   be useful if you are installing Zope or Plone using a
   requirements.txt type approach, e.g. using

   pip install ThreadLock Products.ZSQLMethods egenix-mxodbc-zopeda

 * Enabled creating wheels from the prebuilt archives, which helps
   when running pip with the wheels package installed. pip then tries
   to build wheels during installation and caches them for future
   reuse.

The complete list of changes is available on the mxODBC Zope DA
changelog page.

http://www.egenix.com/products/zope/mxODBCZopeDA/changelog.html

mxODBC Zope DA 2.2.0 was released on 2014-12-11. Please see the mxODBC
Zope DA 2.2.0 release announcement for all the new features we have
added.

http://www.egenix.com/company/news/eGenix-mxODBC-Zope-DA-2.2.0-GA.html

For the full list of features, please see the mxODBC Zope DA feature
list:

http://www.egenix.com/products/zope/mxODBCZopeDA/#Features

The complete list of changes is available on the mxODBC Zope DA
changelog page.



UPGRADING

Users are encouraged to upgrade to this latest mxODBC Plone/Zope
Database Adapter release to benefit from the new features and updated
ODBC driver support. We have taken special care not to introduce
backwards incompatible changes, making the upgrade experience as
smooth as possible.

For major and minor upgrade purchases, we will give out 20% discount
coupons going from mxODBC Zope DA 1.x to 2.2 and 50% coupons for
upgrades from mxODBC 2.x to 2.2. After upgrade, use of the original
license from which you upgraded is no longer permitted. Patch level
upgrades (e.g. 2.2.0 to 2.2.3) are always free of charge.

Please contact the eGenix.com Sales Team with your existing license
serials for details for an upgrade discount coupon.

If you want to try the new release before purchase, you can request
30-day evaluation licenses by visiting our web-site or writing to
sa...@egenix.com, stating your name (or the name of the company) and
the number of eval licenses that you need.

http://www.egenix.com/products/python/mxODBCZopeDA/#Evaluation


DOWNLOADS

Please visit the eGenix mxODBC Zope DA product page for downloads,
instructions on installation and documentation of the packages:

http://www.egenix.com/company/products/zope/mxODBCZopeDA/

If you want to try the package, please jump straight to the download
instructions: