Blogs about Python

I’ve always wanted a dog (actually… my family had one ~30 years ago, but since I wasn’t directly involved with him, I never felt him as my own). Life (and sometimes laziness) had not allowed …

This week, my neighborhood had a few power outages. Bad news for the uptime of my self-hosted sites! 😅 After the power came back and my server started, Gunicorn services failed with the following error: …

When iterating through lists or other iterables in Python, there are often situations where you need not only the value of each item but also its index. Enter the enumerate() function—a powerful, built-in feature of …

"Get or create" is a very common operation for syncing data in the database, but implementing it correctly may be trickier than you may expect. If you ever had to implement it in a real …

Whenever I publish something about my Python Docker workflows, I invariably get challenged about whether it makes sense to use virtual environments in Docker containers. As always, it’s a trade-off, and I err on the …

I recently encountered an open source project that hadn't received updates for a while. The issue tracker had ~200 open issues, ~70 open pull requests, and CI was partially failing. It's not uncommon for projects …

Today I learned how to use the Polars function pl.date_range to create date sequences with calendar-aware intervals between dates. Date sequences in Polars Polars provides a function polars.date_range that is able to produce date sequences …

Signalling allows for applications to be decoupled by allowing designated receivers to be informed when an action has taken place (the signal). Flask and Quart both utilise the excellent Blinker library to support signals and …

Link: https://tenacity.readthedocs.io/en/latest/When writing code or tests in Python, one issue I had was when the code would fail due to random things like network issues or external peripherals not responding in time. Just rerunning the …

(One of my summaries of the one-day Pycon NL conference in Utrecht, NL). Brett is the writer of the effective python book. As an example, he picked a calculator that can add and multiply integers. …

Building apps that can seamlessly interpret real-world data is becoming increasingly essential, especially with the rise of AI and machine learning. Integrating features like Optical Character Recognition (OCR) directly into mobile apps allows users to …

I've written a lot about how I've been using Claude to build one-shot HTML+JavaScript applications via Claude Artifacts. I recently started using a similar pattern to create one-shot Python utilities, using a custom Claude Project …

In the past week I had two people separately tell me what they thought the Python Software Foundation Conduct WG did and both were wrong (and incidentally in the same way). As such, I wanted …

Version numbering is hard, and there are lots of popular schemes out there for how to do it. Today I want to talk about a system I’ve settled on for my own Django-related packages, and …

I recently got my hands on a USB drive with Kakasoft USB Copy Protection (DRM protection). This software promises to let you share data without the fear of it being copied by the end user. …