Welcome to Pytest-BDD’s documentation! — Pytest-BDD 7.3.0 documentation
A BDD plugin for use with pytest.
Public
How Instagram scaled to 14 million users with only 3 engineers
Instagram scaled from 0 to 14 million users in just over a year, from October 2010 to December 2011. They did this with only 3 engineers.
They did this by following 3 key principles and having a reliable tech stack.
A Complete Guide To Behavior-Driven Testing With Pytest BDD
A comprehensive guide to getting started with BDD testing with pytest.
LaunchFlow - Docs
Another IfC solution; native to Python.
Remove the "Authority" from Packaging - Packaging - Discussions on Python.org
Turns out the A in PyPA, meaning "authority", was originally intended as a joke. TIL.
Rye and uv: August is Harvest Season for Python Packaging
Blog post about the state of Python packaging in 2024, with a particular emphasis on how uv is going (and in part rye too).
Senior Software Engineer - D.C. Thomson & Co. Ltd.
Hey! You! Yes, you! Looking for a senior hacker role? Want to work for the second biggest creator of comics called DC¹? Fancy working in a team and environment that, in my experience, is the nicest group of folk I’ve worked with in the 35 years I’ve been banging on keyboards for money? Think you could cope working with me? (Okay, fine, forget that last part).
Perhaps know someone who might like that?
1: I think. Honestly, I’ve not actually fact-checked that.
Home - Lambda Forge
A tool for quickly building Lambda functions.
wyuenho/emacs-pet: Tracks down the correct Python tooling executables from your virtualenvs so you can glue the binaries to Emacs and delete code in init.el
What looks to be a module for Emacs that helps find the right venv for a project; I think. Saving this to look at at some point in the future.
How boto3 impacts the cold start times of your Lambda functions | tecRacer Amazon AWS Blog
An analysis of how boto3 affects the code start times of AWS Lamdas.
hissp: It's Python with a Lissp.
Another Lisp in Python.
Statically Typed Functional Programming with Python 3.12
One person's adventutes in functional programmming in Python.
Homoiconic Python - MOHAMMED JAMAL
Those who don't learn Lisp are doomed to reinvent it. Actually, those who do learn list are also doomed to reinvent it too. Here someone sort of reinvents Lisp in Python.
How Python Asyncio Works: Recreating it from Scratch
An approach to explaining Python's asyncio by recreating it from scratch.
PEP 692 – Using TypedDict for more precise **kwargs typing | peps.python.org
PEP for TypeDict and kwargs typing.
pylyzer: A fast static code analyzer & language server for Python
A Python language server written in Rust.
(How to Write a (Lisp) Interpreter (in Python))
This page has two purposes: to describe how to implement computer language interpreters in general, and in particular to build an interpreter for most of the Scheme dialect of Lisp using Python 3 as the implementation language. I call my language and interpreter Lispy (lis.py). Years ago, I showed how to write a semi-practical Scheme interpreter Java and in in Common Lisp). This time around the goal is to demonstrate, as concisely and simply as possible, what Alan Kay called "Maxwell's Equations of Software."
A Deep Dive into the SIGTTIN / SIGTTOU Terminal Access Control Mechanism in Linux
Useful deep dive into all the issues relating to job control and how it affects a running process.
How to improve Python packaging, or why fourteen tools are at least twelve too many
"Join me on a journey through packaging in Python and elsewhere. We’ll start by describing the classic packaging stack (involving setuptools and friends), the scientific stack (with conda), and some of the modern/alternate tools, such as Pipenv, Poetry, Hatch, or PDM. We’ll also look at some examples of packaging and dependency-related workflows seen elsewhere (Node.js and .NET). We’ll also take a glimpse at a possible future (with a venv-less workflow with PDM), and see if the PyPA agrees with the vision and insights of eight thousand users."
Python Packaging, One Year Later: A Look Back at 2023 in Python Packaging
Annotating args and kwargs in Python
Useful blog post that goes over the best ways to type *args and **kwargs in Python.
niquests - A requests fork
Requests but with HTTP/3, HTTP/2, Multiplexed Connections, System CAs, Certificate Revocation, DNS over HTTPS / TLS / QUIC or UDP, Async, DNSSEC, and (much) pain removed!
Parallel httpx requests
Useful overview of how to perform parallel requests with httpx.
Terminal Emulators Battle Royale – Unicode Edition!
It turns out that Unicode support in Terminals is a lot more difficult than it first appears. A quick overview of special support for Unicode characters in Terminals:
- "Wide" or "Fullwidth" characters, particularly for East Asian languages and emojis, are codepoints that occupy two cells in a terminal instead of one.
- "Zero" width combining characters used in languages such as Arabic, Hebrew, or Hindi do not occupy any cells themselves; instead, they modify the previous character.
- "Zero Width Joiner" (ZWJ U+200D) reduces and combines many codepoints into a single emoji. This is similar to combining, but encoded in a completely different way.
- "Variation Selector-16" (VS-16 U+FE0F) is a special character that, for specific "Narrow" emojis consuming one cell, causes them to become "Wide", consuming two cells.
My User Experience Porting Off setup.py
There seems to be a lot of confusion around setup.py and friends; and while I’ve seen pushback against this post (mostly sniffy gatekeeper stuff rather than helpful feedback), it’s a worthwhile read if only because the confusion is real.
Basic introduction to Pydantic
Nice little introduction to what Pydantic offers.
Textual 0.11.0 adds a beautiful Markdown widget
Reddit thread where the Textual Markdown widget was announced.
Also includes the rather hilarious comment "I wish there were more full blown app examples out there", back when Textual was pretty damn new and barely out of the initial "CSS branch" release.
Style guides for Google-originated open-source projects
Google's style guide for Python code. Obviously not the law, not even always a good suggestion, but worthy of consideration.
Why (Python) type hinting sucks
I don’t agree with the post - type hinting is awesome in my experience - but it’s a cleverly-crafted argument and there’s some interesting debate in the comments.
Trimmed down python setup for Emacs. This is a basic `init.el` file for Python, you can pick the bits you like.
Handy cut-down config for Emacs and Python, showing examples of comapny and eglot (or optionally lsp-mode) along the way.