Author Archives: Lee

eBay: unsafe items, and the lack of a proper complaints procedure

Lately, I’ve been working on the garden, getting rid of some old logs etc.  I also want to be able to handle large items around the garden and workshop in future: lifting paving slabs, tires, and the like. So, I thought the ideal thing would be a chain block hoist.  Basically these are pulleys with […]

GNU now developing rack systems

It seems GNU are branching out: from software, into rack systems ;)

When Agile goes wrong

I just received this message from customer support for a product I pay a subscription for (Oh, why not: this is Todoist.com): Unfortunately we don’t have a roadmap for future features. To stay flexible and add features based on requests, we work on a few options, implement them and then decide what’s next so unfortunately […]

On racism, respect, and diversity

On a forum today, someone asked the question, Why is something like “Asians eat a lot of rice” considered racist?’ It may seem like this is an obvious thing, but I think it deserves some explanation, for those who are young, inexperienced, or just don’t get it yet, for whatever reason.  So, this is my […]

Announcing MediGuest: Free Management software for Social Welfare Hostels

I’ve just released MediGuest. It’s a web-based, open-source application for the management of welfare hostels. Think of drug rehab centers, centers for alcoholics, or anywhere that may admit guests, but also supervise them in some way. Previously commercial, I’m making this available to all organisations that can benefit from it, entirely free of charge… because, […]

An appeal for correct, capable, future-proof math in nascent programming languages

Let me start by saying that, the math in most programming languages is WRONG.  In most cases, there is little to be done about this, except perhaps tack on some new classes which allow new code to be written to fix it. However, nascent languages, like Rust, which I’ll mainly address here, have an opportunity […]

Disqus considered harmful

I just saw yet another interesting blog post that I wanted to contribute a comment to, but bypassed it, because it uses the horrible Disqus comment system.  So, I want to take a moment to rant helpfully point out that using Disqus or third-party comment systems like it will probably do your site (and the […]

Projects, old and new

NOTE: See my GitHub page, for a complete list of public projects. I’ve recently taken a few projects out of storage (literally: the mountpoint is called “storage” :), and posted them on GitHub.  So, I thought I’d take a moment to point out each one.  I’m also going to get into some current projects, which […]

Game complexity, and the art of programming

Someone asked on reddit: “How lines of text (coding) can turn into beautiful, complex environments in games?” I wrote up a quick reply, which I liked enough to post here instead.  I should really take the time to write it more carefully, building the explanations, evidence, etc.  That could be a powerful read, or maybe […]

Tuning a webserver to avoid swapping

A lot of people run into a problem when they first setup a webserver — perhaps in a VPS or other small system — using default settings: the system will run fine at first, but when under load, probably when the owner isn’t around, it will grind to a halt. The owner comes back, tries […]

UK Interest Rates: Government figures vs. Government figures

Officially, the UK Inflation rate is 2.4%. Except that inflation is supposed to be “a measure of the rise in cost of goods and services“. Based on actual figures from the Office of National Statistics, the same organisation that reports the inflation rate, things are very different: Gas and electricity: +142% Car tax & insurance […]

PyPy vs. CPython: Speed and memory usage benchmarks

Following on from part 1 of this article, I’d like to take you through some PyPy vs. CPython benchmarks. Benchmarks: Many Objects Note: in all benchmarks, I’m measuring total memory use for the entire interpreter run, but only measuring time taken across the code I’m actually interested in testing. There’s a subtle (depending on your […]

On the virtues of PyPy as your default interpreter

I get a lot of use out of PyPy. In fact, it’s become my default python interpreter, replacing CPython, at least for Python 2.x code. Python 3.x support in PyPy is coming real soon now; most of the tests are passing, so the next release will probably make it happen. So, I wanted to write […]

Welcome to my new blog

It’s been a while.  Finding time to blog is tough these days, and it’s so easy to be swept up in sites like Facebook, where all your friends are, or Google Plus, which offer easy access to lots of other posts and readers. I’ve seen the light, though. Facebook does so much analysis on users […]