~pycoders | Issue #639 (July 23, 2024) (26)

Asyncio gather() Handle Exceptions The asyncio.gather() function takes an optional argument return_exceptions which changes the behavior of the co-routine when an error occurs. This article shows you how to use it. JASON BROWNLEE

Python Protocols: Leveraging Structural Subtyping In this tutorial, you’ll learn about Python’s protocols and how they can help you get the most out of using Python’s type hint system and static type checkers. REAL PYTHON

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Trying Out Free-Threaded Python on macOS Free-threaded mode is available as a compile option in the beta of Python 3.13. Simon decided to try it out on his Mac. SIMON WILLISON

Quiz: Python’s Built-in Functions: A Complete Exploration Take this quiz to test your knowledge about the available built-in functions in Python. By taking this quiz, you’ll deepen your understanding of how to use these functions and the common programming problems they cover, from mathematical computations to Python-specific features. REAL PYTHON

Exercises Course: Introduction to Web Scraping With Python In this course, you’ll practice the main steps of the web scraping process. You’ll write a script that uses Python’s requests library to scrape and parse data from a website. You’ll also interact with HTML forms using tools like Beautiful Soup and Mechanical Soup to extract specific information. REAL PYTHON course

When Generators Get Cleaned Up When playing with generators in asynchronous code, Sam ran into some things he didn’t quite expect with how and when resources get cleaned up. This article shows you what you can and can’t control, and in some cases whether you should. SAM EISENHANDLER

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Different Ways I Start Writing New Code In this article, the author talks about the different approaches they use to create new code depending on the mood, the feature or bug at hand, and their confidence level. Five different approaches are covered. JUHA-MATTI SANTALA

A Python Epoch Timestamp Timezone Trap Date and times are problematic and there are all sorts of problems you can get into when you use them in Python. This post talks about one challenge when using epoch timestamp numbers. JOËL PERRAS

How to Convert a Python Script Into a Web App This post shows you how to take a Python script and turn it into a web application using FastAPI. It includes information about how to choose endpoints and how to do authentication. AHMED LEMINE

Instrumenting Python GIL With eBPF eBPF is a tool available on Linux to dig into the profile of your code. In this article, Nikolay uses it to inspect when the GIL gets invoked in CPython. NIKOLAY SIVOK

Approximate Counting in Django and Postgres Pagination in Django uses the rather slow SELECT COUNT(*) SQL call. This article looks at how to speed up counting with Django and PostgreSQL. NIK TOMAZIC

Assignment vs. Mutation in Python In Python, “change” can mean two different things. Assignment changes which object a variable points to. Mutation, changes the object itself. TREY HUNNER

Flask vs Django in 2024 This post compares Flask and Django, from what they specialize in to what it takes to do a personal web site in each. WILL VINCENT

Making an Iterator Out of a Function You can use the Python built-in function iter with two arguments to create an iterator from a function. RODRIGO GIRÃO SERRÃO

Developing GraphQL APIs in Django With Strawberry This tutorial details how to integrate GraphQL with Django using Strawberry. TESTDRIVEN.IO • Shared by Michael Herman