PyPI's test suite 81% faster, Interactive reStructuredText Tutorial and more

with some more interesting news, articles, packages and projects

Ashok Tankala

May 24, 2025

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Articles

Making PyPI's test suite 81% faster

The Trail of Bits team managed to cut down PyPI’s test suite runtime from 163 seconds to just 30 - a remarkable 81% improvement. In their write-up, they detailed the steps that made it possible: using pytest-xdist for parallel test execution, leveraging Python 3.12’s sys.monitoring, configuring testpaths, removing unnecessary imports, etc.

# Trail of Bits

Interactive reStructuredText Tutorial

Looking to learn or practice reStructuredText? This interactive tutorial site is a great place to start. It covers everything from basic syntax and inline markup to advanced topics like directives, roles, tables and figures - all in a hands-on playground format.

# yakimka

SQLAlchemy 2.0: The Most Powerful ORM for Python Yet

SQLAlchemy 2.0 has been around for a while and it brings some major changes compared to 1.x, like replacing query with select for fetching data. In this article, the Leapcell team gave a thorough walkthrough of how to use SQLAlchemy from setting up a database connection to performing batch inserts.

# Leapcell

Django Security Best Practices: A Comprehensive Guide for Software Engineers

A vulnerable web app can lead to data loss, loss of user trust and even legal trouble. That’s why securing it is crucial. In this article, Ahmad Sadeddin shared Django security best practices like enforcing HTTPS, enabling Django’s built-in security features, adding rate limiting and more.

# Ahmad Sadeddin

The first year of free-threaded Python

Nathan Goldbaum shared the story of the first year of efforts on Python’s free-threaded build about how the Quansight team played a key role in making it usable with real production workflows, even those involving complex dependency stacks.

# Nathan Goldbaum

Interesting Packages and Projects to Explore

nglview - IPython widget to interactively view molecular structures and trajectories.

AG2 (formerly AutoGen) - A programming framework for agentic AI

nbdev - Create delightful software with Jupyter Notebooks

tyro - CLI interfaces & config objects, from types

Django Ninja - A web framework for building APIs with Django and Python 3.6+ type hints.

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