Genetic Algorithms, Beautiful QR Codes, Mr Null, and More

#594 – SEPTEMBER 12, 2023

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Playing With Genetic Algorithms in Python
A Genetic Algorithm (GA) is an AI technique where random code is mutated and tested for fitness iteratively until a solution is found. This article shows you a couple of problems solved using GAs in Python. Associated HN discussion.
JOSEP RUBIÓ PIQUÉ

Generate Beautiful QR Codes With Python
In this tutorial, you’ll learn how to use Python to generate QR codes, from your standard black-and-white QR codes to beautiful ones with your favorite colors. You’ll learn how to format QR codes, rotate them, and even replace the static background with moving images.
REAL PYTHON

Finally—Pandas Practice That Isn’t Boring

You won’t get fluent with Pandas doing boring, irrelevant, toy exercises. Bamboo Weekly poses questions about current events, using real-world data sets—and offers clear, comprehensive solutions in Jupyter notebooks. Challenge yourself, and level up your Pandas skills every Wednesday →
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I’m Mr. Null. My Name Makes Me Invisible to Computers
NULL is a magic word in many computer languages. This article is by someone who has Null as a last name, and the consequences that entails. See also this Radiolab Podcast Episode for a similar topic.
CHRISTOHPER NULL

2023 Django Developers Survey
DJANGO SOFTWARE FOUNDATION

Python 3.12.0 Release Candidate 2 Available
CPYTHON DEV BLOG

Pandas 2.1.0 Released
PYDATA.ORG

Discussions

Why Prefer Indentation Over Block Markers?
STACKEXCHANGE.COM

Articles & Tutorials

Launching an HTTP Server in One Line of Python Code
In this tutorial, you’ll learn how to host files with a single command using an HTTP server built into Python. You’ll also extend it by making a miniature web framework able to serve dynamic content from HTML templates. Along the way, you’ll run CGI scripts and use encryption over HTTPS.
REAL PYTHON

Introducing flake8-logging
The Python standard library’s logging module is a go-to for adding observability to applications, but there are right and wrong ways to use it. This article is about a new linter that explicitly looks for problems with your logging calls.
ADAM JOHNSON

Fully Managed Postgres + Great Support

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Apple Vision Framework via PyObjC for Text Recognition
Learn how to use PyObjC to interface with the Apple Vision Framework and create a script to detect text in images. Become familiar with how PyObjC works and how it maps functions and methods from Objective C to Python.
YASOOB KHALID • Shared by Yasoob Khalid

Class Concepts: Object-Oriented Programming in Python
Python uses object-oriented programming to group data and associated operations together into classes. In this video course, you’ll learn how to write object-oriented code with classes, attributes, and methods.
REAL PYTHON course

Switching to Hatch
Oliver used Poetry for most of his projects, but recently tried out Hatch instead. This blog post covers what it took to get things going and what features he used, including how he ditched tox.
OLIVER ANDRICH

The Python Dictionary Dispatch Pattern
The dictionary dispatch pattern is when you keep references to functions in a dictionary and change code behavior based on keys. Learn how to use this pattern in practice.
JAMES GALLAGHER

Analysing and Parsing the Contents of PyPI
High-level statistics gathered from PyPI, including how popular language features are, project sizes (tensorflow accounts for 16% of the data on PyPI!) and growth.
TOM FORBES • Shared by Tom Forbes

Writing a C Compiler in 500 Lines of Python
This post details how to build a C compiler, step-by-step, using Python. A great intro to compilers. The target source is WASM, so learn a bit about that too.
THEIA VOGEL

Filters in Django: filter(A, B) vsfilter(A).filter(B)
An advanced dive into the Django ORM, how it handles joins, and what that means for your code.
APIROBOT.ME • Shared by Denis

My Favorite Python Tricks for LeetCode Questions
A collection of intermediate-level Python tricks and tools. Write more Pythonic code!
JJ BEHRENS

What Is Wrong With TOML?
Some YAML people talk about why TOML is too limited.
HITCHDEV.COM

Projects & Code

Brought to you by Real Python for Teamssponsor
Online Python training created by a community of experts. Give your team the real-world Python skills they need to succeed →

StrictYAML: Type-Safe, Restricted Subset of the YAML
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dara: Create Interactive Web Apps in Pure Python
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JobSpy: Scraper for LinkedIn, Indeed & ZipRecruiter
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krypton: Data Encryption at Rest and IAM for Python
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iommi: Your First Pick for a Django Power Chord
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Genetic Algorithms, Beautiful QR Codes, Mr Null, and More

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