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Python Hub Weekly Digest for 2025-06-29
Are Python Dictionaries Ordered Data Structures?
Python dictionaries preserve insertion order starting from version 3.6 (as an implementation detail) and this became a guaranteed language feature in Python 3.7 and later, meaning items will appear in the order they were added. However, while dictionaries now maintain insertion order, order is not considered a defining characteristic—dictionaries with the same key-value pairs but differe...
Dynamic YAML with Python computed properties for fusing API workflows and SQL
Beyond htmx: building modern Django apps with Alpine AJAX
The article demonstrates how to use Alpine.js and AJAX with Django to create interactive, client-side web applications that efficiently handle dynamic data updates without full page reloads. It provides practical examples and code snippets for integrating Alpine.js with Django views, serializers, and templates to enhance user experience through seamless frontend-backend communication.
Avoiding PostgreSQL Pitfalls: The Hidden Cost of Failing Inserts
This article discusses how failing inserts in PostgreSQL, particularly due to unique constraint violations in a Django application, can cause significant performance issues and database overhead. It recommends using ON CONFLICT DO NOTHING in PostgreSQL or Django's bulk_create with ignore_conflicts=True to prevent these problems.
💖 Most Popular in the Last Two Weeks
How to Write the Worst Possible Python Code (Humor)
dnsimg - storing images in txt records
The author experiments with storing images in DNS TXT records by converting image data to hex, splitting it into 2048-character chunks, and creating a protocol-like method for retrieval and reconstruction. The process demonstrates both the feasibility and practical limitations of this approach, including DNS record size constraints and the need for custom scripts to upload, fetch, and re...
The fastest way to detect a vowel in a string
The author explores 11 different methods for detecting vowels in a string using Python, benchmarking their performance and analyzing their underlying implementation, including Python bytecode and regex internals. The results show that for short strings, a simple loop is fastest, but for longer strings, regex-based approaches outperform others due to their optimized C-level implementation...
Python is Removing GIL, Gradually
This article will take you on a quick tour of the past, current, and future of the infamous GIL. More importantly, there is a beginner-friendly guide about how to install and try no-GIL Python.
excel-mcp-server
A Model Context Protocol (MCP) server that lets you manipulate Excel files without needing Microsoft Excel installed. Create, read, and modify Excel workbooks with your AI agent.
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Project by Ruslan Keba. Since 2012. Powered by Python. Made in 🇺🇦Ukraine.