Tips on reading the systemd journal logs
When looking at logs, you should almost always add the –utc flag or check server’s local time (timedatectl status). It should always be UTC (timedatectl set-timezone UTC). Why? Because when…
Tag: Lessons learned
[NixCon 2019] Reading Nix expressions (notes)
This are my notes from the Reading Nix expressions talk in NixCon 2019. Nix package language has a similar syntax to the "JSON meets functional language concepts". E.g. you have…
Python3 strings
A bit of background on unicode and UTF-8: Unicode has a different way of thinking about characters. In Unicode, the letter “A“ is a platonic ideal. It’s just floating in…
Python PDB
Last month I attended PyMunich conference and in this blog post I want to highlight a talk by Philip Bauer (“Debug like a pro. How to become a better programmer through…
Releasing Python Packages
When you need to fix a bug, add feature or change existing functionality in a library that you are using there are several ways to do this. Here I will…
Lessons learned from EuroPython 2016
This was my first EuroPython conference and I had high expectations because I heard a lot of good things about it. I must say that overall it didn’t let me…
Unit testing in Python with mock
Before we start writing tests let’s make sure that we understand why do we want to write unit tests and the concept of unit testing. Here are a few reasons (from my…
MongoDB not starting up
A few days ago I had a problem where mongodb crashed and I couldn’t start it up. I realized that this problem occurred because the disk was full. So I rm…