Python & Django
Patterns, tooling, and implementation details for maintainable web applications.
Python · Django · Test automation
Build software that works beyond the tutorial.
Practical guides for building, testing, and deploying reliable Python applications—grounded in real projects and the lessons they teach.
What I write about
From first commit to production.
Testing & quality
Pytest, Playwright, API testing, and pragmatic ways to make releases safer.
Deployment & automation
CI/CD, Linux, PostgreSQL, and the operational work behind a reliable service.
Latest field notes
Recent articles
Dockerizing III
The third step of my Docker migration is happening on the production VPS, but it is not a live traffic cutover yet. The goal is to prepare the server carefully, …
Read articleDockerizing II
In the first part of this migration, I made the Django application container-ready. Configuration can now come from environment variables, logs go to standard output, and Docker has a lightweight …
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How Much Money Do You Need to Live in Prague in 2027? A Realistic Monthly Budget
Updated: October 2026 | Estimated costs for 2027 | Reading time: 8–10 minutes Prague is one of Europe's most attractive cities for international workers, students, and people planning a new …
Read articleDockerizing I
I have wanted to containerize this website for a while, but a working production service is not the right place for a “big bang” rewrite. My goal is not simply …
Read articleStart with AsyncIO
Recently, I wanted to go deeper with the AsyncIO package in Python. It is used in FastAPI, and using this async code in general can increase efficiency dramatically due to …
Read articleRuff
As you know, I'm working on this project by myself, so over time, a lot of garbage has accumulated in the code. I’ve decided to use the Ruff linter to …
Read articleUpdating deploy script for using UV & CI
I've modified the deployment script so it will use UV now for the environment management. First, UV should be installed on the host server. I've modified the deploy script like …
Read articleHandling dependencies with UV
I've decided to use UV to keep my Python workflow fast and simple. It replaces pip, virtualenv, pip-tools, and pipx for me—one tool that installs, locks, and runs everything. Because it’s …
Read articleChanging Python version on linux server
Recently, Python 3.14 LTS has been released. So, it's time for an upgrade. And if you have a running project, I strongly recommend updating it to the newer version from …
Read articleGithub actions I
I’ve used CI/CD pipelines on all my jobs on GitLab; this web, however, has its code located on GitHub. I’m too lazy to move it to GitLab, and I’m also …
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