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Issue #584 (July 4, 2023)

#584 – JULY 4, 2023

Why Are Membership Tests So Fast for range() in Python?

In Python, range() is most commonly used in for loops. However, ranges have some other use cases too, as they share many properties with lists. In this tutorial, you’ll explore why it’s so fast to perform a membership test on a Python range.
REAL PYTHON

What’s the Deal With CPython, Pypy, MicroPython, Jython…?

This comprehensive article introduces you to all the different ways you can Python. CPython isn’t the only choice, learn what else is out there and why you might choose an alternative.
BITE CODE

Companies like GitLab, Snowflake, and Slack Scan Their Code for Vulnerabilities Using Semgrep

Scan your code and dependencies for security vulnerabilities for free with Semgrep – the trusted OSS tool used by top companies like GitLab, Snowflake, and Slack. No security expertise needed, simply add your project and let Semgrep do the work in just minutes →
SEMGREP sponsor

I Am the First PSF Security Developer-in-Residence

Seth was recently hired as the first Security Developer-In-Residence at the PSF. His blog post talks about what his responsibilities are and how he defines success for the position.
SETH LARSON

PSF Board Election Results

PYTHON SOFTWARE FOUNDATION

Django Security Releases Issued: 4.2.3, 4.1.10, and 3.2.20

DJANGO SOFTWARE FOUNDATION

FOSS United Conference Hyderabad, India Call for Papers

INDIAFOSS.NET • Shared by Poruri Sai Rahul

PyLadies Conference (Dec 2023) Call for Volunteers

PYLADIES.COM

Discussions

TKinter in Python: Advanced Notions

DAN KOLIS

Python Jobs

Software Engineer (Dallas or Los Angeles) (Los Angeles, CA, USA)

Causeway Capital Management LLC

More Python Jobs >>>

Articles & Tutorials

How to Flatten a List of Lists in Python

In this tutorial, you’ll learn how to flatten a list of lists in Python. You’ll use different tools and techniques to accomplish this task. First, you’ll use a loop along with the .extend() method of list. Then you’ll explore other tools, including reduce(), sum(), itertools.chain(), and more.
REAL PYTHON

Jinja Templating

With Jinja, you can build rich templates that power the front end of your web applications. But you can use Jinja without a web framework running in the background. Anytime you want to create text files with programmatic content, Jinja can help you out.
REAL PYTHON course

DataWars: Practice Data Science with Real Life Projects

DataWars’s platform includes +100 of Data Science projects to practice Pandas, Scikit-Learn, SQL and much more, in an interactive, ready to use environment. Create an account for free and start your challenge →
DATAWARS sponsor

Estimating Wagtail Websites’ Emissions

This article describes quantifying the carbon footprint of websites built with Wagtail, the Python CMS, based on a dataset of 4,000 websites. Wagtail is looking at potential improvements that could be rolled out to a large number of projects.
WAGTAIL.ORG • Shared by Thibaud Colas

CLI Tools Hidden in the Python Standard Library

There are several modules in Python that are directly callable from the command line, including the ability to gzip and pretty print JSON. This article introduces you to what is available and how Simon discovered them.
SIMON WILLISON

When NumPy Is Too Slow

Sometimes just switching to NumPy just isn’t enough of a speed boost, what then? Before you contemplate parallelism, there are other approaches. This articles shows you other ways of improving performance.
ITAMAR TURNER-TRAURING

Deprecation of bdist_egg Uploads to PyPI

PEP 715 has been accepted and as of August 1, 2023, the .egg format will no longer be accepted as an upload. Existing eggs on PyPI will remain in place.
PYPI.ORG

ML System Design: 200 Case Studies

A collection of links to 200 different blog posts / case studies from leaders in the ML space. Learn how companies such as Netflix and Airbnb implement and use ML in their organizations.
EVIDENTLY AI

Top 10 Python Code Vulnerabilities to Know

Dive into Snyk’s Top 10 Python Code Vulnerabilities cheat sheet to gain a comprehensive understanding of each vulnerability type found in first-party Python code, including its impact, potential risks, and attack vectors.
SNYK.IO sponsor

Automating Deployment Using the Kubernetes SDK

Learn how to use the Python Kubernetes SDK to automate application deployments, including creating Kubernetes resources like deployments, services, secrets, config maps, and ingress.
FAIZAN BASHIR • Shared by Faizan Bashir

Counting Occurrences in Python With collections.Counter

Python’s collections.Counter objects are helpful for counting occurrences of iterable items. They’re especially helpful when paired with generator expressions.
TREY HUNNER • Shared by Trey Hunner

Projects & Code

polars-cookbook: Recipes for Using Python’s Polars Library

GITHUB.COM/ESCOBAR-WEST

symbex: Search Python for Symbols to Output to an LLM

GITHUB.COM/SIMONW

jupyterlab-theme-editor: Theme Editor for Jupyter

GITHUB.COM/JUPYTERLAB-CONTRIB

bark: Text-Prompted Generative Audio Model

GITHUB.COM/SUNO-AI

llama_index: Connect Your LLM’s With External Data

GITHUB.COM/JERRYJLIU

Events

Weekly Real Python Office Hours Q&A (Virtual)

July 5, 2023
REALPYTHON.COM

Sydney Python User Group (SyPy)

July 6, 2023
SYPY.ORG

Django Girls Abraka Workshop

July 7 to July 8, 2023
DJANGOGIRLS.ORG

DFW Pythoneers 2nd Saturday Teaching Meeting

July 8, 2023
MEETUP.COM

SciPy 2023

July 10 to July 17, 2023
SCIPY.ORG

Happy Pythoning!
This was PyCoder’s Weekly Issue #584.
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