What ho!

I'm David Winterbottom, a minimalist software engineer living in London.

I'm Director of Engineering at Yoyo Wallet, a mobile payments and loyalty start-up. Previously, I was Technical Director of Tangent Snowball, a digital agency.

I spend most of my free time hacking. I am the author of commandlinefu.com and the e-commerce framework django-oscar amongst other things.

I used to be a mathematician; I have a PhD in Mathematics from the University of Nottingham and an associated interest in cryptic crosswords, chess and bad puns.

More about me »


Monday, 23 November 2015
Octopus Energy

A modern, high-tech energy supplier

Friday, 2 October 2015
A useful template for commit messages

A simple heuristic for preferring the imperative mood

Wednesday, 2 September 2015
Copying Postgres output into a spreadsheet

Quick tip on tweaking the output of psql

Saturday, 2 May 2015
An SSH tip for modern AWS patrons

Slightly useful tip for SSHing onto EC2 instances

Saturday, 4 April 2015
All writing »

Selected projects

A few spare-time projects I've worked on:

  • commandlinefu.com - a mildly popular repository site for sharing linux one-liners. Grown men have been known to weep with joy when they discover sudo !!

Python packages on PyPI:

  • purl - an immutable URL class for python
  • foiegras - simple CSV loading for Postgres
  • csvfilter - like cut but for CSVs
  • pyvideo2quicktime - for downloading PyCon videos to your iPhone
  • unittest-xml - additional assertions for unit-testing XML documents with python's unittest library.

Oscar and related packages:

Other Django packages on PyPI

node.js packages on npm:

  • nurl - a simple URL library for node.js