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Asyncio Exceptions, Protocols, Free-Threaded CPython, and More

#639 – JULY 23, 2024 VIEW IN BROWSER
The PyCoder’s Weekly Logo
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

Prod Alerts? You Should be Autoscaling
Let Judoscale solve your scaling issues. We support Django, Flask, and FastAPI, and we also autoscale your Celery and RQ task queues. Traffic spike? Scaled up. Quiet night? Scaled down. Work queue backlog? No problem →
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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

Python 3.13.0 Beta 4 Released
CPYTHON DEV BLOG


Articles & Tutorials


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

Posit Connect - Help Your Data Science Team Share and Collaborate
Tired of emailing files around & trying to use general-purpose collaboration tools? Posit Connect makes it easy to share, collaborate, & get feedback on your data science work including Jupyter notebooks, Streamlit, & other analytics applications.
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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


Projects & Code


Brought to you by Real Python for Teamssponsor
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cbfa: Class-Based Views for FastAPI
GITHUB.COM/POMPONCHIK • Shared by Evgeniy Blinov (pomponchik)

Satyrn: macOS App for Jupyter Nobtebooks
SATYRN.APP

Datasketch: Probabilistic Data Structures
PYPI.ORG

pyNES: Python Programming for Nintendo 8 Bits
GITHUB.COM/GUTOMAIA

staged-script: Divide Automation Scripts Into Stages
GITHUB.COM/SANDIALABS • Shared by Jason M. Gates

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VS Code Settings, Leaked Creds, Free-Threaded CPython, and More

Tuesday, July 16, 2024

Customize VS Code Settings #638 – JULY 16, 2024 VIEW IN BROWSER The PyCoder's Weekly Logo Customize VS Code Settings In this course, Philipp helps you customize your Visual Studio Code settings to

Apple App Store, Built-Ins, Constraint Programming, and More

Tuesday, July 9, 2024

Python Grapples With Apple App Store Rejections #637 – JULY 9, 2024 VIEW IN BROWSER The PyCoder's Weekly Logo Python Grapples With Apple App Store Rejections A string that is part of the urllib

Build a Calculator, Satellite Data, Best Practices, and More

Tuesday, July 2, 2024

Build a GUI Calculator With PyQt and Python #636 – JULY 2, 2024 VIEW IN BROWSER The PyCoder's Weekly Logo Build a GUI Calculator With PyQt and Python In this video course, you'll learn how to

Calendar Versioning, Rounding, Generating Test Data, and More

Tuesday, June 25, 2024

PEP 2026: Calendar Versioning for Python #635 – JUNE 25, 2024 VIEW IN BROWSER The PyCoder's Weekly Logo PEP 2026: Calendar Versioning for Python This PEP proposes updating the versioning scheme for

NumPy 2.0, Calendar Versioning, Mappings, and More

Tuesday, June 18, 2024

Should Python Adopt Calendar Versioning? #634 – JUNE 18, 2024 VIEW IN BROWSER The PyCoder's Weekly Logo Should Python Adopt Calendar Versioning? Python's use of semantic style versioning

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