Once you’ve deployed your web app to prod there is a moment of satisfaction: a brief respite where you can reflect on your hard work. You sit, adoringly refreshing the homepage of www.mysite.com to watch it load over and over. It’s beautiful, perfect, timeless. A glittering …

Someone recently asked me

When is a good time to get automated testing setup on a new Django project?

The answer is "now". There are other good times, but now is best. In this post I'll briefly make my case for why, and show you an example of a minimal …

You've built and deployed a website using Django. Congrats! After that initial high of successfully launching your site comes the grubby work of fixing bugs. There are so many things that can will go wrong. Pages may crash with 500 errors in prod, but not locally. Some offline tasks never …

I'd like to share some things I've learned and done in the 18 months I worked as a "Research DevOps Specialist" for a team of infectious disease epidemiologists. Prior to this job I'd worked as a web developer for four years and I'd found that the day-to-day had become quite …

Often when you're creating a website, a client or designer will provide you with large images that are 2-5MB in size and thousands of pixels wide. The large file size of these images will make them slow to load on your webpage, making it seem slow and broken

This video …

It's not too hard to get started with either Django or React. Both have great documentation and there are lots of tutorials online. The tricky part is getting them to work together. Many people start with a Django project and then decide that they want to "add React" to it …

I make a lot of stupid mistakes when I'm working on Python code. I tend to:

• make typos in variable names
• accidently delete a variable that's used somewhere else
• leave unused variables lying around when they should be deleted

It's easy to accidentally create code like in the image below …

There's an awkward point when you're learning Django where you've done the official tutorial and maybe built a simple project, like a to-do list, and now you want to try something a little more advanced. People say that you should "learn by building things", which is good advice, but it …

This post is an appendix to my post on designing a Django project. In this page I explain why I chose to use this data model:

I created this data model by looking at the user journeys and thinking about what data I would need to make them work. Here's …

This post is an appendix to my post on designing a Django project. This page shows all the wireframes for the app, with some additional notes for each page.

Page designs for the user who answers the survey

This section covers the pages required for the "survey taker" user journey …

Python uses snake_case variable naming while JavaScript favours camelCase. When you're buiding an web API with Django then you'll be using both langauges together. How do you keep your styles consistent? You could just use one style for both your frontend and backend, but it looks ugly. Perhaps this …

You are trying to deploy your Django web app to the internet. You have never done this before, so you follow a guide like this one. The guide gives you many instructions, which includes installing and configuring an "NGINX reverse proxy". At some point you mutter to yourself:

What-the-hell is …

So you want to run a Django app using NGINX and Gunicorn. Did you notice that all three of these tools have logging options? You can configure Django logging, Gunicorn logging, and NGINX logging.

You just want to see what's happening in your Django app so that you can fix …

You need your Django project to be portable. It should be quick and easy to start it up on a new laptop. If it isn't portable, then your project is trapped on your machine. If it gets deleted or corrupted, then you've lost all your work! This issue comes up …

Does Django have "bad performance"? The framework is now 15 years old. Is it out of date? Mostly, no. I think that Django's performance is perfectly fine for most use-cases. In this post I'll review different aspects of Django's "performance" as a web framework and discuss how you can decide …

Today I read a Reddit thread where a beginner was stumbling over themself, apologizing for writing tests the "wrong way":

I'm now writing some unit tests ... I know that the correct way would be to write tests first and then the code, but unfortunately it had to be done this …

Many beginner programmers find the Django documentation overwhelming.

Let's say you want to learn how to perform a login for a user. Seems like it would be pretty simple: logins are a core feature of Django. If you google for "django login" or search the docs you see a few …

Sometimes you want to write a feature for your Django app that requires a lot of structured data that already exists in production. This happened to me recently: I needed to create a reporting tool for internal business users. The problem was that I didn't have much data in my …

When you're going for your first programming job, you don't have any work experience or references to show that you can write code. You might not even have a relevant degree (I didn't). What you can do is write some code and throw it up on GitHub to demonstrate to …

It sucks when you're working on a Django app and all your pages are empty. For example, if you're working on a forum webapp, then all your discussion boards will be empty by default:

Manually creating enough data for your pages to look realistic is a lot of work. Wouldn't …