| | | | 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.
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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 →
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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
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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 →
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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.
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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
Brought to you by Real Python for Teamssponsor
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polars-cookbook: Recipes for Using Python’s Polars Library
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symbex: Search Python for Symbols to Output to an LLM
GITHUB.COM/SIMONW
jupyterlab-theme-editor: Theme Editor for Jupyter
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bark: Text-Prompted Generative Audio Model
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llama_index: Connect Your LLM’s With External Data
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