excess.org

Ian Ward

Consulting
Boxkite Inc.
Software
CKAN contributor/tech lead
PyRF primary contributor
Urwid author
Speedometer author

Presentations
Contributing to Open Source
IASA E-Summit, 2014-05-16
Urwid Applications
2012-11-14
Urwid Intro
2012-01-22
Unfortunate Python
2011-12-19
Django 1.1
2009-05-16

Writing
Moving to Python 3
2011-02-17
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first name at this domain

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Urwid turns 10
Urwid 1.3.0 Released link
Posted on 2014-10-17.

Urwid 1.3.0 is now available at urwid.org and on pypi. This is a major feature release including new asyncio event loop support. Thank you to all the new contributors.

Complete changelog

Happy 10th birthday Urwid!

Tags: Urwid Software Python


Urwid 1.2.2 Released link
Posted on 2014-10-06.

Urwid 1.2.2 is now available at urwid.org and on pypi. This is a bug fix release that includes a fix for a serious performance regression.

Complete changelog

Tags: Urwid Software Python


Posted on 2014-10-03.

For pyrf I needed to take data from a frequency plot, which could be any number of points, and present it as a spectrogram that fills the view size exactly. In the spectrogram I only care about the maximum values that appear in the range of frequencies represented by each pixel.

If I could just divide the number of source bins by an integer factor the solution would be simple:

return np.amax(data.reshape((-1, factor)), axis=1)

But I have to be able to handle any number of source bins and output that to any number of pixels.

Fortunately numpy is awesome.

Read More …

Tags: Software Python


Posted on 2014-04-04, last modified 2014-04-09.

What does bar.foo do? - An exploration of Python assignment, objects, attributes and descriptors

This is a talk I gave March 27, 2014 at the Ottawa Python Authors Group meetup.

Follow along with the IPython notebook version if you would like to play with the code examples.

Read More …

Tags: Ottawa Software Python OPAG


Learn Python Videos link
Posted on 2014-03-03.

Mahdi Yusuf, one of the Ottawa Python Authors Group organizers and curator of Pycoder's Weekly, has just posted his complete catalog of Python tutorial videos for free:

Tags: Video Python OPAG


Urwid 1.2.0 Released link
Posted on 2014-02-09.

Urwid 1.2.0 is now available at http://urwid.org/ and on pypi. Lots of new features:

Complete changelog

Tags: Urwid Software Python


urwid.org
urwid.org, 1.1.2 Released link
Posted on 2013-12-30, last modified 2014-01-04.

Urwid's home page has moved to http://urwid.org/

Source control, issue tracking and wiki pages are now hosted on github. The new home page and changelog are now generated by sphinx like the Urwid manual, tutorial and reference.

The bug-fix-only release Urwid 1.1.2 is now available at http://urwid.org/ and on pypi.

Tags: Urwid Software Python


IEEE AUTOTESTCON paper link
Posted on 2013-10-14.

After working on PyRF this past year, I was asked to help edit to a paper written by ThinkRF's Nikhil Adnani for AUTOTESTCON 2013: Wideband 20 GHz RF Digitizer and Python-based Open Application Framework for Test and Measurement.

We were fortunate enough to win the Walter E. Peterson award for Best Paper on Technology, and while I missed the show I did receive a handsome plaque and certificate for my contribution.

Tags: Software Python


data.gc.ca
data.gc.ca link
Posted on 2013-06-18.

A site I've been working on for the past few months has just launched. data.gc.ca "2.0" is a completely rewritten version of the Open Data portal for the Government of Canada.

I worked on the CKAN portion of the site responsible for the data catalogue. CKAN is an open source Data Portal application written in Python. I built a fully bilingual schema with many additional fields for our datasets. I also optimized, fixed and improved many parts of CKAN itself.

Our team built templates based on the Web Experience Toolkit (WET). WET provides building blocks for creating accessible, mobile-friendly web sites. These templates include a map widget for our geospatial datasets and an interactive data table for previews of tabular data.

All of our work is available on the open-data github page and is released under a permissive license.

data.gc.ca might just be the largest, most fully bilingual and most accessible CKAN site anywhere. More to come!

Tags: Software Python


Sean Zicari
Sean Zicari's Curses and Urwid Talk link
Posted on 2013-03-21.

Sean Zicari gave a Curses and Urwid presentation at the recent PyCon US in Santa Clara.


Tags: Urwid Software Video Python


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