| | | | One Database Transaction Too Many
Learn how a bug was born — one that resulted in hundreds of users of an application getting a notification that they had been paid when in fact they had not! In this story, Haki Benita shares how a slip-up with Django signals caused him and his team quite a headache. You’ll learn how the application was architected, how the bug occurred, and how they fixed it, along with some other remedies to consider.
HAKI BENITA
The State of Python Packaging in 2021
What does Python packaging look like in 2021? What are the best tools to use? In this article, you’ll see one developer’s opinion about the state of Python packaging in 2021, what tools they are using the most often, and some thoughts on how the situation can continue to improve moving forward.
BASTIAN VENTHUR opinion
Monitor Errors & Performance in your Python Apps = Keep Users Happy
 For software teams, monitoring code health is essential. From Error tracking to Performance monitoring, Sentry helps developers see clearer, solve quicker, and learn continuously about their applications - from frontend to backend. Try Sentry for free → with code: PYCODERS
SENTRYsponsor
Python News: What’s New From June 2021?
June 2021 was full of notable events in the Python world! In this article, you’ll get caught up on what’s been happening with Python during this past month, including some changes at the Python Software Foundation and the announcement of a new recipient of the PSF Fiscal Sponsorship Program.
REAL PYTHON
Python 3.10.0b4 Is Available
This is the last beta release, which means the next release will be the first release candidate.
CPYTHON DEV BLOG
Łukasz Langa Is the Inaugural CPython Developer-in-Residence
PYTHON SOFTWARE FOUNDATION
Python Jobs
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Articles & Tutorials
Exploring the functools Module and Complex Numbers in Python
Are you ready to expand your Python knowledge into the intermediate to advanced territory? What tools are awaiting your discovery inside Python’s functools module? This week on the Real Python Podcast, David Amos is back, and he’s brought another batch of PyCoder’s Weekly articles and projects.
REAL PYTHON podcast
Pyflyby: Improving Efficiency of Jupyter Interactive Sessions
There’s a new tool in town that aims to improve Python developer focus and minimize distractions while coding, especially in Jupyter Notebooks. That new tool is pyflyby, and it can handle tidying up and collecting imports and exports from Python modules. For example, in a Jupyter Notebook, pyflyby can automatically import the right modules and functions from NumPy if you use something in a cell without importing it first.
MATTHIAS BUSSONNIER AND AARON MEURER
Try Scout Free for 14-days, no CC Needed, and see why Developers Call Scout their Best Friend
 Scout uses tracing logic to tie bottlenecks to source code so devs can get back to building great products instead of wasting time fixing performance issues. Our real-time alerting and streamlined dashboards provide the data insights necessary for any developer to become a performance pro →
SCOUT APMsponsor
Copilot Writes a Text-Based Game in Python
GitHub’s new Copilot feature has a lot of people talking. The project’s goal is to be an AI pair programmer — a tool that can suggest entire lines of code or even entire functions! In this amusing article, one developer who gained access to Copilot’s technical preview shares how the AI wrote an entire text-based adventure game that turned out to be the solution to an exercise from a Python instructional book.
SAGINDYK URAZAYEV
Friendlier Tracebacks in REPLs (Including Jupyter)
Tracebacks are often the start of any Python debugging journey. But tracebacks can be difficult to read and confusing to beginners. The friendly-traceback project aims to lift the veil of confusion for tracebacks by providing more helpful error messages with lots of context. New updates to the project include better tracebacks in Jupyter Notebooks!
ANDRÉ ROBERGE
Get Feedback Faster with YourBase Test Acceleration
YourBase Test Acceleration can reduce testing and compute cost time by up to 90%. You don’t have to replace your CI, your build system, or your version control. Getting started is as easy as a pip install, and you don’t have to share any data.
YOURBASEsponsor
The Square Root Function in Python
In this quick and practical course, you’ll learn what a square root is and how to calculate one in Python. You’ll even see how you can use the Python square root function to solve a real-world problem.
REAL PYTHON course
Projects & Code
Brought to you by Real Python for Teamssponsor
Online Python training created by a community of experts. Give your team the real-world Python skills they need to succeed →
jupyterlite: WASM Powered Jupyter Running in the Browser
GITHUB.COM/JTPIO
pyflyby: A Set of Python Programming Productivity Tools
GITHUB.COM/DESHAW
multipledispatch: A Relatively Sane Approach to Multiple Dispatch in Python
GITHUB.COM/MROCKLIN
calcengine: Simple Python Calculation Engine
GITHUB.COM/BSDZ
tryceratops: A Linter to Manage All Your Python Exceptions and Try/Except Blocks
GITHUB.COM/GUILATROVA
django-postgres-extra: Bringing All of PostgreSQL’s Awesomeness to Django
GITHUB.COM/SECTORLABS
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