Changelog - django-htmx 1.29.0 documentation

django-htmx.readthedocs.io

Python: sharing common tests in unittest - Adam Johnson

A neat testing pattern is writing common tests in a base class and then applying them to multiple objects through subclassing. Doing so can help you test smarter and cover more code with less boilerpl...

adamj.eu

Git: exclude commits by an author in git log with --perl-regexp - Adam Johnson

git log has an --author option to limit the output to commits from matching authors:

adamj.eu

Django 6.1 released

Posted by Jacob Walls on Aug. 5, 2026

djangoproject.com

Zsh: list recently modified files with (m0) glob qualifiers - Adam Johnson

My downloads directory is a junk pile that I just never get around to fully clearing. So if I’ve just downloaded a bunch of files, I normally want to work with them and ignore the rest of the files.

adamj.eu

Python: how time-machine is O(1) where freezegun is O(n) - Adam Johnson

time-machine is my library for mocking the current date and time in Python tests. Its headline advantage over freezegun, the library that inspired it, is speed.

adamj.eu

Build with frame pointers enabled by adamchainz · Pull Request #627 · adamchainz/time-machine

github.com

GitHub - adamchainz/django-crawl: An in-process site crawler using Django’s test client.

An in-process site crawler using Django’s test client. - adamchainz/django-crawl

github.com

Python: time-machine 3.3.0 lets your tests time-travel even faster - Adam Johnson

time-machine is my library for mocking the current date and time in Python tests. I’ve just released version 3.3.0 with a decent number of changes, so here’s a lovely summary for you.

adamj.eu

Python: inspect unittest.mock calls with attached mocks - Adam Johnson

When you use a unittest.mock mock, you often make assertions on the calls it received, such as through the mock_calls list. But sometimes you want to assert on the order of calls across multiple mocke...

adamj.eu

Python: spy on function calls with unittest.mock’s wraps - Adam Johnson

Testing terminology distinguishes between different kinds of test doubles, including:

adamj.eu

Django: release code words up to 6.1 - Adam Johnson

Did you know that each Django release has a “code word” associated with it? It’s hidden in plain sight, in the announcement blog post describing the list of features coming in the next version. I thin...

adamj.eu

Django: introducing django-crawl - Adam Johnson

I recently migrated one of my client projects from the legacy django-csp package to Django 6.0’s built-in Content Security Policy (CSP) support (release note). This security header is a powerful tool ...

adamj.eu

Django: introducing django-orjson - Adam Johnson

Just as cars painted red are known to be faster, libraries implemented in Rust are also known to be faster. Today’s example is orjson, a Rusty replacement for Python’s built-in json module, boasting 1...

adamj.eu

Python: find all instances of a class with gc.get_objects() - Adam Johnson

Here’s a lovely hack that I’ve used when machete-mode debugging.

adamj.eu

Python: store extra data for objects in a WeakKeyDictionary - Adam Johnson

In several programs, I’ve wanted to solve the problem of associating extra data with an object. For example, in django-upgrade, the individual “fixer” functions often want to store extra data per visi...

adamj.eu

Changelog - django-upgrade 1.31.0 documentation

django-upgrade.readthedocs.io

Django: introducing django-integrity-policy - Adam Johnson

Back in January, Firefox’s Security & Privacy Newsletter for 2025 Q4 piqued my interest with this mention:

adamj.eu

Episode #294: Declarative Charts in Python & Discerning Iterators vs Iterables – The Real Python Podcast

What if you could build charts in Python by describing what your data means, instead of scripting every visual detail? Christopher Trudeau is back on the show this week with another batch of…

buff.ly

Django: fixing a memory “leak” from Python 3.14’s incremental garbage collection - Adam Johnson

Back in February, I encountered an out-of-memory error while migrating a client project to Python 3.14. The issue occurred when running Django’s database migration command (migrate) on a limited-resou...

adamj.eu

Python: introducing profiling-explorer - Adam Johnson

I’ve made another package! Like icu4py, which I made in February, it was sponsored by my client Rippling. And like tprof, which I made in January, it’s a profiling tool!

adamj.eu

deptry

A command line utility to check for unused, missing and transitive dependencies in a Python project.

deptry.com

Docs: `import datetime as dt` in examples (#145315) · python/cpython@d3b6faf

github.com

PEP 827 – Type Manipulation | peps.python.org

We propose adding powerful type-level introspection and construction facilities to Python’s type system. This design is inspired largely by TypeScript’s conditional and mapped types, but is adapted to...

peps.python.org

Django: profile memory usage with Memray - Adam Johnson

adamj.eu

Python: introducing icu4py, bindings to the Unicode ICU library - Adam Johnson

I made a new package! Thank you to my client Rippling for inspiring and sponsoring its development.

adamj.eu