Daily Python: PyCoder’s Weekly: Issue #495 (Oct. 19, 2021)

#495 – OCTOBER 19, 2021
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No-GIL Fork of CPython

This is a proof-of-concept implementation of CPython that supports multithreading without the global interpreter lock (GIL), from Facebook research. An overview of the design is described in the Python Multithreading without the GIL Google doc. Also see the related discussions on LWN and Hacker News.
GITHUB.COM/COLESBURY • Shared by Henry Schreiner

Why You Shouldn’t Invoke `setup.py` Directly

“The setuptools team no longer wants to be in the business of providing a command line interface and is actively working to become just a library for building packages. What you should do instead depends on your use case, but if you want some basic rules of thumb, there is a table in the summary section.”
PAUL GANSSLE

Data Elixir: Data Science Newsletter

Data Elixir is an email newsletter that keeps you on top of the tools and trends in Data Science. Covers machine learning, data visualization, analytics, and strategy. Curated weekly with top picks from around the web →
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Where Does All the Effort Go? Looking at Python Core Developer Activity

“One of the tasks given me by the Python Software Foundation as part of the Developer in Residence job was to look at the state of CPython as an active software development project. What are people working on? Which standard libraries require most work? Who are the active experts behind which libraries?”
ŁUKASZ LANGA

Cool New Features in Python 3.10

In this course, you’ll explore some of the coolest and most useful features in Python 3.10. You’ll appreciate more user-friendly error messages, learn about how you can handle complicated data structures with structural pattern matching, and explore new enhancements to Python’s type system.
REAL PYTHON course

Python Jobs

Senior Python Engineer @ Moody's AI & ML Center of Excellence (New York, NY, USA)

Moody's

Senior Software Engineer (Washington D.C., DC, USA)

Quorum

Senior Backend Software Engineer (Anywhere)

Clay

Full Stack Developer (Anywhere)

Level 12

Software Engineer (Anywhere)

1Point21 Interactive

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Articles & Tutorials

Tests Aren’t Enough: Case Study After Adding Type Hints to `urllib3`

“Since Python 3.5 was released in 2015 including PEP 484 and the typing module type hints have grown from a nice-to-have to an expectation for popular packages. To fulfill this expectation our team has committed to shipping type hints for the v2.0 milestone. What we didn’t realize is the amount of value we’d derive from this project in terms of code correctness.”
SETH MICHAEL LARSON

Welcoming the CPython Developer in Residence

Earlier this year, the Python Software Foundation announced the creation of the Developer in Residence role. The first Visionary Sponsors of the PSF have provided funding for this new role for one year. What development responsibilities does this job address? This week on the show, Łukasz Langa talks about becoming the first CPython Developer in Residence.
REAL PYTHON podcast

Accelerate Your Python Apps With Apache Cassandra™ NoSQL. Register for an Astra DB Demo

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Python Assignment Expressions and Using the Walrus Operator

In this course, you’ll learn about assignment expressions and the walrus operator. The biggest change in Python 3.8 was the inclusion of the := operator, which you can use to assign variables in the middle of expressions. You’ll see several examples of how to take advantage of this new feature.
REAL PYTHON course

A Roadmap to XML Parsers in Python

In this tutorial, you’ll learn what XML parsers are available in Python and how to pick the right parsing model for your specific use case. You’ll explore Python’s built-in parsers as well as major third-party libraries.
REAL PYTHON

How APT Does Its Fancy Progress Bar

“Today while running an apt full-upgrade I asked myself how apt does this nice progress bar stuck at the bottom line while still writing scrolling text.” Python example code included.
JULIEN PALARD

Configuration Is an API, Not an SDK

Guidelines for config management in general and for Python apps in particular. Why “Configuration is just another API of your app” might be a good philosophy to adopt.
HERNAN LOZANO • Shared by Hernan Lozano

Python’s `property()`: Add Managed Attributes to Your Classes

In this step-by-step tutorial, you’ll learn how to create managed attributes, also known as properties, using Python’s property() in your custom classes.
REAL PYTHON

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Tuesday, October 19, 2021

PyCoder’s Weekly: Issue #495 (Oct. 19, 2021)

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