~pycoders | Bookmarks (480)

Syntactic Sugar: Why Python Is Sweet and Pythonic In this tutorial, you’ll learn what syntactic sugar is and how Python uses it to help you create more readable, descriptive, clean, and Pythonic code. You’ll also learn how to replace a given piece of syntactic sugar with another syntax construct. REAL PYTHON

Custom Dictionary Types in Pydantic Pydantic lets you create custom types. This post talks about how to create a custom dictionary type using root models and Enums. BRYAN ANTHONIO

How to Use Lambda Functions in Python This article looks at some examples and best practices when using Lambda functions in Python. FEDERICO TROTTA • Shared by AppSignal

The Ultimate Guide to Error Handling in Python This detailed post covers the variety of ways to deal with errors in your code, why you might choose between the approaches, and what all this theory actually means in the real world. MIGUEL GRINBERG

TypedDicts Are Better Than You Think TypedDict was introduced in PEP-589 which landed in Python 3.8. The primary use case was to create type annotations for dictionaries. This post explains why you should use them. CHANGS.CO.UK

Narrow State of a Django Model Using Python TypeGuard Bruno came across a problem with type checking for a Django project which led him to use TypeGuard for the first time. This post explains why. BRUNO ALLA

Exploring the New Features of Python 3.13 Python 3.13 is here! Our regular guests, Geir Arne Hjelle and Christopher Trudeau, return to discuss the new version. This year, Geir Arne coordinated a series of preview articles with members of the Real Python team and a showcase tutorial, “Python 3.13: Cool New Features for You to Try.” Christopher’s video course “What’s New in Python 3.13”...

If We Had $1,000,000… Jacob ponders what the Django Software Foundation would look like if they had 4x their current budget. JACOB KAPLAN-MOSS

HPy: A Better C API for Python The HPy project is a wrapper to the Python C-API meant to make it easier to integrate with Python code. It allows for universal binaries and has a debug mode. Associated HN Discussion HPYPROJECT.ORG

PyCon Africa 2024: A Summary This was Vuyisile’s first visit to PyCon Africa and so he posted a summary of the event. VUYISILE NDLOVU

__init__.py Files Are Optional. You Should Still Use Them If you’ve ever googled the question “Why do Python packages have empty __init__.py files?”, you could get the idea that Python packages wouldn’t work without them. This is a common misconception—they’ve been optional since Python 3.3! Why then, do most Python projects still have them? BOVENBERG.NET • Shared by Arie Bovenberg

PEP 758: Allow except and except* Expressions Without Parentheses “This PEP proposes to allow unparenthesized except and except* blocks in Python’s exception handling syntax. Currently, when catching multiple exceptions, parentheses are required around the exception types.” PYTHON.ORG

In the Making of Python Fitter and Faster This post details how Python’s recent performance improvements work under the hood. It covers changes to the interpreter, better memory management, and the newly experimental JIT compiler. SUMER CIP