~pycoders | Bookmarks (449)

Django Query Optimization: Defer, Only, and Exclude Database queries are usually the bottlenecks of most web apps. To minimize the amount of data fetched, you can leverage Django’s defer(), only(), and exclude() methods. TESTDRIVEN.IO • Shared by Michael Herman

How to Use Async Agnostic Decorators in Python Using decorators in a codebase that has both synchronous and asynchronous functions poses many challenges. One solution is to use generators. This post shows you how. PATREON • Shared by Patreon Engineering

PEP 779: Criteria for Supported Status for Free-Threaded Python PEP 703 (Making the Global Interpreter Lock Optional in CPython), described three phases of development. This PEP outlines the criteria to move between phases. PYTHON.ORG

Providing Multiple Constructors in Your Python Classes In this step-by-step tutorial, you’ll learn how to provide multiple constructors in your Python classes. To this end, you’ll learn different techniques, such as checking argument types, using default argument values, writing class methods, and implementing single-dispatch methods. REAL PYTHON

Getting to Know Duck Typing in Python In this video course, you’ll learn about duck typing in Python—a type system based on an object’s behavior rather than inheritance. By taking advantage of duck typing, you can create flexible and decoupled sets of Python classes that work together or independently. REAL PYTHON course

Detect and Localize Anomalies With Intel AI, Powered by OpenVINO Discover Anomalib, a library of ready-to-use algorithms for efficient anomaly detection. Optimized to run locally and open source, it’s designed to help you spot the odd one out. Get the code on GitHub. INTEL CORPORATION sponsor

Satellogic’s Open Satellite Feed This post explores the “Satellogic EarthView” data feed, starting with determining where the satellites are, and moving to the corresponding ground imagery. The post uses a combination of Python and DuckDB to achieve its objectives. MARK LITWINTSCHIK

The Hierarchy of Controls This article, subtitled “how to stop devs from dropping prod” takes an idea from mechanical engineering used to ensure safety around machinery and brings it to the software world to prevent accidental destruction of data. HILLEL WAYNE

“Rules” That Terminal Programs Follow The conventions that most terminal programs follow mean that you can more easily know how to control them. Julia’s post talks about “rules” that terminal programs tend to follow, and so should yours. JULIA EVANS

Python Textual: Build Beautiful UIs in the Terminal Textual is a Python library for building text-based user interfaces (TUIs) that support rich text, advanced layouts, and event-driven interactivity in the terminal. This tutorial showcases some of the ways you can design an appealing and engaging UI using Textual. REAL PYTHON

Faster Branch Coverage Measurement After nearly two years, Ned thinks this is finally ready: coverage.py can use sys.monitoring to more efficiently measure branch coverage. NED BATCHELDER

Performance of the Python 3.14 Tail-Call Interpreter Prior reports of 10% speed-up from the tail-call interpreter coming in Python 3.14 may be overstated. This article breaks down where that number came from and what the reality may be. NELSON ELHAGE

Binary Search as a Bidirectional Generator Python generators support a .send() method, allowing you to receive data within the generator itself. This post talks about how to use this to implement a binary search algorithm. RODRIGO GIRÃO SERRÃO