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Replay the EuroPython 2026 Python quiz. These are the questions asked during the EuroPython 2026 quiz . They will test your knowledge of the Python language, the community, and of EuroPython 2026. Since we were celebrating 25 years of EuroPython at EuroPython 2026, some questions also touched on that theme. (Unless explicitly stated, questions refer to CPython 3.14.) Note that the version of the…
Cheatsheet with visual diagrams that explain how the iterables from itertools work. This cheatsheet contains diagrams that explain how the iterables from the module itertools work in a visual way. Download this cheatsheet Download this cheatsheet Reshaping batched islice pairwise chain groupby Filtering filterfalse takewhile & dropwhile compress Infinite repeat cycle count Complementary…
Improve the capabilities of your agent by providing it with better tools. Introduction This tutorial builds on the coding agent you implemented in the tutorial “Write a coding agent from first principles” . In this tutorial, you'll take your agent and improve its capabilities by implementing the text edit and bash command tools that Anthropic provides. Why use Anthropic's tools? In the…
Learn how to write a coding agent in this Python tutorial that teaches how to interact with an LLM through an API, how to manage the conversation context, and how to do tool calling. Introduction This tutorial will show you how to create your own coding agent from first principles. By doing so, you'll understand how coding agents work under the hood. Prerequisites To be able to follow this…
Today I learned that collections.deque is implemented as a doubly-linked list of blocks. collections.deque I've written about the data structure deque from the module collections extensively. In particular, I wrote a deque tutorial with plenty of practical example use cases of deque . Today, after some discussion during a cohort I was teaching, a student sent a link to the collections.deque source…
Today I learned Python 3.15 will get a new sentinel built-in. Sentinel values are unique placeholder values that are commonly used in programming. Python 3.15 ships with a new built-in sentinel that can be used to create new sentinel values: # Python 3.15+ >>> MISSING = sentinel("MISSING") >>> MISSING MISSING Before this built-in was added, the most common sentinel idiom used the built-in object :…
Learn how to work around the Python machinery to resolve an explicit lazy import manually. A couple of articles ago I wrote about how you could inspect a lazy import . Apparently, you can use a similar trick to check the attributes and methods that a lazy import has: >>> lazy import json >>> dir(globals()["json"]) ['__class__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__',…
In this article I share my personal highlights of PyCon Lithuania 2026. Shout out to the organisers and volunteers This was my second time at PyCon Lithuania and, for the second time in a row, I leave with the impression that everything was very well organised and smooth. Maybe the organisers and volunteers were stressed out all the time — organising a conference is never easy — but…
Play this short quiz to test your Python knowledge! At PyCon Lithuania 2026 I did a lightning talk where I presented a “Who wants to be a millionaire?” Python quiz, themed around iterables. There's a whole performance during the lightning talk which was recorded and will be eventually linked to from here. This article includes only the four questions, the options presented, and a basic system that…
This article shares two skills you can add to your coding agents so they use uv workflows. I have fully adopted uv into my workflows and most of the time I want my coding agents to use uv workflows as well, like when running any Python code or managing and running scripts that may or may not have dependencies. To make this more convenient for me, I created two SKILL.md files for two of the most…