At work, when our usage and revenue reporting pipelines fail, they usually fail because of tiny data.

Sanity checking Pytest’s .gitignore files.

Open source maintainers can move their projects from travis-ci.org to travis-ci.com to get more reliable GitHub integration.

GitHub’s API rate limits are hurting Travis CI’s service quality. What does this mean for the future of the GitHub ecosystem?

Thoughts on the benefits of extracting library code from Python projects into their own packages.

This post explores how to extract arrangement code when working with the Arrange Act Assert pattern so that it can be used with certainty across the test suite.

This post introduces the Arrange Act Assert pattern of testing and shows how it can be used in a Python context with Pytest.

An updated simple assertion helper for comparing instances of Django’s Q objects using pytest in Python 3.

My current Vim setup for Python development.

Using pip-tools with multiple requirements files can be difficult. This post describes my current workflow that manages the complexity with a Makefile.

Exploring the various model instance factories available for Django. Each factory is tested based on the quality of the instances it creates. Bonus: talk version and slides also available.

Exploring Python’s unittest module boolean assert methods and how they can be misleading in certain situations, but not if you RTFM of course.

How can documenting an API help us to communicate with our team and API consumer developers efficiently?

A super simple assertion helper for comparing instances of Django’s Q objects.

Confirming that Django can screw up your data when saving, and exploring why this is still the case.

A small Python 3 sketch of a solution to a water pouring problem.

Found that tests on a recent project started breaking for no clear reason, and it turned out it was because I’d used get to retrieve values from Contexts.

For the last month I’ve been using Codeship for Continuous Integration on my current client project. These are my current thoughts on this hosted service that works with Github and BitBucket repositories.

Agencies often provide flat designs to web developers as a specification, but these only scratch the surface of a true website functional specification. This is a check-list of features which can be fleshed out to start the journey towards a full functional spec.

Notes to myself on generators and how to create them with generator expressions and the yield statement.

Should detailed history be kept for development features, if so, where?

Notes to myself about Python decorators with a focus on making them testable.

Talk at Pyramid London meetup about testing strategies for Pyramid applications.

Talk at the first Pyramid London meetup about the Pyramid Router, URL Traversal and Dispatch.

Migrating a project from Django 1.4 to Django 1.5 had a couple of gotchas that cost me dev time.

A tweaked fork of the Pelican Svbtle theme with some cleaned CSS and HTML.

My Mako question got no views and no answers - should we be using Mako if things are so quiet?