python-colormath 2.0 released!

Saturday, May 03 2014

python-colormath was started back in 2008, when I was an undergraduate at Clemson University (Go Tigers!). While there are a good number of people out there making use of the module effectively, there were a lot of things I wanted to do differently in an eventual 2.0 release. There were some usability issues that arose from my being relatively new to Python at the time.

But all has been made well now. I am happy to announce the immediate release of python-colormath 2.0! A few hilights:

  • Better documentation
  • Python 3.3+ support added. Python 2.6 and lower no longer supported.
  • A complete re-working of RGB and RGB conversions. I’m biased, but I think we’ve now got more correct RGB handling than the vast majority of color math libraries out there, regardless of language.
  • While the color space conversion math remains largely untouched, there is now a dedicated color_conversions submodule that is devoted to the cause. I think this is a good clarity/usability win.
  • Our unit test suite saw a lot of improvement. They are now easier to write, more complete, and more helpful when failures occur.
  • Numpy matrix-driven Delta E functions were incorporated for a nice speed win. In addition to the standard Delta E calls, you can use a vectorized equivalent that is much faster.

See the 2.0 release notes for a more detailed look at the differences.

NOTE: There are backwards incompatible changes in this release. In order to set things right, there were quite a few breakages, but I’ve done the best I can to document these.

Installation

The easiest way to get python-colormath is through pip/easy_install:

pip install colormath

Halp!

If you get stuck, create an issue in the issue tracker and we can figure it out.


Fabric task for notifying New Relic of a code deploy

Monday, February 11 2013

A brief example Fabric task for notify New Relic of code deploys.

read more

Switched to Pelican

Sunday, February 10 2013

For the last four years, my blog has been powered by Django. As I have found myself becoming more and more busy, I have stopped wanting to hassle with keeping things up to date on the server and the application.

After a weekend of tinkering and conversions, I’m now ...

read more

Ansible first impressions

Friday, February 08 2013

After brief visits with Puppet and Chef for config management, I’ve set my sights on Ansible. It’s late and I’ve been staring at this stuff for way too long today, but here are some early observations:

  • I really like that it is written in Python. Puppet and ...
read more

Amazon Elastic Transcoder Review

Wednesday, January 30 2013

Amazon Elastic Transcoder was released just a few short days ago. Given that we do a lot of encoding at Pathwright, this was of high interest to us. A year or two ago, we wrote media-nommer which is similar to Amazon’s Transcoder, and it has worked well for us ...

read more

python-route53 released!

Wednesday, November 14 2012

After some more time in the cooker, python-route53 1.0 has landed on PyPi. This is a stand-alone Route 53 package, independent from the one in boto. The major hilights are:

  • Python 2.7 and 3.x compatibility.
  • Extremely simple API
  • Powered by requests

Read the documentation, see the source ...

read more

python-route53 feedback wanted

Thursday, November 08 2012

Late last night (or early this morning), I finished the draft of python-route53, a stand-alone Route 53 module with Python 3.x and Python 2.7 compatibility. Route 53 is an excellent DNS service offered by Amazon Web Services. It exposes everything through an API.

My intentions with python-route53 are ...

read more

Evennia MUD server gets BSD’d

Friday, November 02 2012

As of a few days ago, the Evennia MUD server has been re-licensed under the BSD License. We feel like this will knock down another barrier for those considering running a game with Evennia. I can’t recommend this codebase enough for anyone who may have caught the MUD development ...

read more

python-fedex and colormath re-licensed under BSD

Tuesday, October 23 2012

I am happy to announce that python-fedex and python-colormath have been re-licensed under the BSD License. At the time these two packages were created, there were reasons for GPL’ing these. However, said reasons have long since been removed, so it’s BSD time!

My involvement with both of these ...

read more

python-bluefin 1.3 released

Tuesday, October 16 2012

python-bluefin 1.3 has been released, now with improved error handling. The major feature in this release is that we have smoothed over some inconsistencies in Bluefin’s error handling.

Instead of setting an HTTP status code indicating an error like they do for most of the Bluefin API errors ...

read more