Adam Johnson :django: :python:

:django: #Django blogger and contributor
✍️ Author of three books on Django and Git
🍕 Django London co-organizer
🇬🇧 London / 🇵🇹 Lisbon

Website: https://adamj.eu/
Twitter: https://twitter.com/adamchainz

Public Key

npub18aeuwaj332znuxugd30kx6fekw57zejwfzfx2249hnfephhndxvqum55j8

NIP-05 Address

adamchainz_at_fosstodon.org@momostr.pink

Profile Code

nprofile1qqsr7u78wegc4pf7rwyxchmrdyum820pve8y3yn992jme5usmmeknxqprpmhxue69uhhyetvv9ujumt0d4hhxarj9ecxjmntds6mw2

Publishing to

relay.momostr.pink

Author Public Key

npub18aeuwaj332znuxugd30kx6fekw57zejwfzfx2249hnfephhndxvqum55j8

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Last Notes

2026-03-17 08:37:11 UTC

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I'm using ty as my main LSP and Ruff for its formatting and linting. So far so good, ty is still beta but very fast and I need that for one gigantic client project.

2026-03-17 06:39:41 UTC

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oh yeah the default html formatter in zed is aggressive, disable it like https://github.com/adamchainz/mac-ansible/blob/main/roles/adam_mac/files/dotfiles/config/zed/settings.json#L63
You can see other formatters I disabled there too

2026-01-10 19:40:24 UTC

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Impressive. Most impressive.

2025-12-03 23:13:42 UTC

🚀 Django 6.0 is out!
This is a super exciting new release, introducing the tasks framework, template partials, Content Security Policy support, improved email handling, and lots more!
Here are my annotated and expanded highlights from the release notes:
https://adamj.eu/tech/2025/12/03/django-whats-new-6.0/
#Django

2025-11-20 17:43:54 UTC

🐎 Django-related deals for Black Friday 🐎
Divert from the typical shopping frenzy to check out these deals from Django-related creators to help you learn and use the web framework for perfectionists with deadlines.
https://adamj.eu/tech/2025/11/20/django-black-friday-deals-2025/
#Django #Python #BlackFriday

2025-10-27 14:51:28 UTC

🚀 Yesterday, I released version 1.2.0 of my new package, django-http-compression.
It includes a big change to only apply compression to known-compressible content types, like HTML or JSON, copying the behaviour of servers like Caddy or CloudFlare. This change saves CPU cycles by not trying to compress binary formats that are typically already compressed, like images or zipfiles.
https://github.com/adamchainz/django-http-compression/blob/main/CHANGELOG.rst
#Django

2025-10-11 06:35:19 UTC

Give this a go to help guide the future of the web!
https://mastodon.social/@FirefoxDevTools/115345278669277934

2025-09-12 06:21:55 UTC

Haha, it turns out the LLM test SWE-Bench uses Django, and agents have been caught solving a bug fix by using git log to copy what @npub1qav…xu3f did! 😂
https://github.com/SWE-bench/SWE-bench/issues/465
#Django #AI

2025-07-02 10:50:05 UTC

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monkey patch getaddrinfo to log the values being passed to it

2025-05-07 22:55:15 UTC

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the recipe is fun, but wow did it go off the rails illustrating the chilli powder!
https://cdn.fosstodon.org/media_attachments/files/114/469/008/127/046/681/original/81fc6a2c39da0136.png

2025-05-07 21:28:15 UTC

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It's such a bubble... I think you're right that Jetbrains and similar adjacent will be the best-positioned to take advantage of this tech long term.
If you want more sources see https://www.wheresyoured.at/openai-is-a-systemic-risk-to-the-tech-industry-2/
And everything on https://pivot-to-ai.com/ (also the related YouTube)

2025-05-05 13:17:26 UTC

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Great recap, thanks Will!
“Before making it to the party itself, Adam Johnson discovered an ancient Viking Archaeology Site”
Well, I think that's crediting my stumbling on a YouTube video a little bit too much 😅

2025-04-28 11:53:14 UTC

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Nice !

2025-04-25 20:20:24 UTC

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We did it!
@npub1xj9…yv56 @npub1qav…xu3f @npub1j7f…270h @npub12hm…zk8p @npub1mjx…httg @npub10c6…0j74
#DjangoConEurope
https://cdn.fosstodon.org/media_attachments/files/114/400/443/418/760/834/original/859f9bdb05c01c99.jpeg

2025-04-21 20:01:17 UTC

I haven’t seen Sinners, but this cover in the OST truly slaps... and on theme for #DjangoConEurope !
https://www.youtube.com/watch?v=Iapw_hbyBjE

2025-04-16 21:18:39 UTC

I'm excited to visit this specific Lidl while I'm at #DjangoConEurope
https://www.irelandbeforeyoudie.com/1000-year-old-viking-house-preserved-under-irish-supermarket/

2025-04-10 09:40:02 UTC

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I'm not talking about swapping for another "production-grade" server, I mean why do we keep saying it's not? It wraps WSGIServer in Python stdlib: https://docs.python.org/3.13/library/wsgiref.html#module-wsgiref.simple_server . Nothing there says it's not "production-grade". What's actually missing?

2025-04-10 07:37:06 UTC

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Yes.. even if not the most scalable or feature-full… what would it actually take?

2025-04-01 09:18:04 UTC

#Python mini tip:
The easiest way to create a signature-preserving function decorator is with `contextlib.contextmanager`. Use it on a generator function with one `yield` statement, and it will create a combined context manager and function decorator.
https://cdn.fosstodon.org/media_attachments/files/114/261/955/640/529/218/original/f3b75a928a5b8921.png

2025-03-25 12:41:59 UTC

#GitHub tip:
Don’t post “Any updates?” style comments on open source threads. Any updates would be there already. Open source is a gift; bugging maintainers acts like you're entitled to results. I just mark such comments as spam.
If you want to see something done, do something to help: research specifications, find an existing implementation, write a test case, draft the docs, write a draft implementation, do some code review, test the PR locally, or just anything to help the project.
https://cdn.fosstodon.org/media_attachments/files/114/223/094/908/409/157/original/a6eac18f402a88f9.png

2025-03-25 10:25:07 UTC

Django + htmx tip:
Use hx-headers to pass Django’s CSRF token with all requests. This allows htmx to make data-modifying requests with methods like POST or PUT.
More details: https://django-htmx.readthedocs.io/en/latest/tips.html#make-htmx-pass-djangos-csrf-token
#Django #htmx
https://cdn.fosstodon.org/media_attachments/files/114/222/582/545/448/199/original/c9f3540905050b75.png

2025-03-22 21:35:58 UTC

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That may be where we're headed.

2025-03-22 12:13:08 UTC

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Unfortunately, it may be never! The weight of training data often outweighs any "thinking" by the model.

2025-03-06 21:27:32 UTC

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go go Will ! Cover looking sick!

2025-03-02 21:49:18 UTC

Another great post from Carlton analyzing what tech bubble cycles can really mean for developers. Buy a subscription, it’s worth your money and time, especially now there’s a sizeable back catalogue!
https://fosstodon.org/@carlton/114093544846127347

2025-02-28 16:48:43 UTC

I am Ruff contributor 603 ! :partyparrot:
#Python #Rust
https://github.com/astral-sh/ruff/pull/16439

2025-02-20 12:33:35 UTC

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and in at least one case, lack of support in SMSes for the undotted I has lead to deaths: https://languagelog.ldc.upenn.edu/nll/?p=73

2025-02-06 11:16:08 UTC

https://cdn.fosstodon.org/media_attachments/files/113/956/654/948/048/821/original/a393a54348603069.jpg

2024-12-23 15:49:32 UTC

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Jesus, so bad...

2024-12-20 16:27:08 UTC

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the new query_params parameter in test Client methods :)

2024-12-18 22:26:43 UTC

🤔 Want to test your Django knowledge?
Here’s my blog post version of last night’s quiz at Django London. It’s been our annual tradition since 2016.
#Django
https://adamj.eu/tech/2024/12/18/django-quiz-2024/

2024-12-11 15:34:14 UTC

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do what the algorithm suggests and you shall be rewarded

2024-12-11 15:32:59 UTC

GitHub Copilot suggests that I write a very long series ranting about how Django views are NOT controllers
https://cdn.fosstodon.org/media_attachments/files/113/634/902/915/919/830/original/f53114305f68e49e.png

2024-12-07 22:06:35 UTC

Thanks to @npub1nsp…ahke ’s new Django TV site, here are all of my DjangoCon talks gathered on one page.
#Django
https://djangotv.com/presenters/adam-johnson/

2024-12-06 12:45:36 UTC

Little reminder to do the 2024 #Django developers survey :)
https://www.djangoproject.com/weblog/2024/nov/21/2024-django-developers-survey/

2024-12-05 23:28:11 UTC

✍️ New post covering another useful way to launch pdb in Django, when a given SQL query runs
#Django #Python
https://adamj.eu/tech/2024/12/05/django-sql-breakpoint/

2024-11-27 12:56:02 UTC

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noooo :(

2024-11-27 12:01:26 UTC

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Thanks for sharing, updating to Sequoia now !!!

2024-11-26 15:48:29 UTC

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it would be great if it had a system check…

2024-11-26 14:55:08 UTC

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Congratulations! Quite something to pull off a whole platform like that.

2024-11-18 07:54:42 UTC

🐴 Django-related deals for Black Friday! 🐴
My annual post gathering deals from Django-related creators is up.
Check it out for discounts on books, courses, and tools!
#Django #BlackFriday
https://adamj.eu/tech/2024/11/18/django-black-friday-deals-2024/

2024-11-08 13:53:11 UTC

✍️ I just finished writing the new pdb chapter for Boost Your Django DX. Lots of good stuff about pdb and ipdb.
🖨️ I’m not against print debugging though, per this past post:
https://adamj.eu/tech/2021/10/08/tips-for-debugging-with-print/
🤔 Maybe I could squeeze a “print debugging” section in with these tips?
#Django #Python

2024-11-01 12:31:59 UTC

Anyone using Biome with their Django projects? Any tips?
#Django
https://biomejs.dev/

2024-10-28 11:36:41 UTC

📦 WhiteNoise 6.8.0 is out!
Including:
* A gnarly bug fix from Per Myren
* A correction to script prefix behaviour from @npub10c6…0j74
* An up-to-4x optimization of collectstatic from @npub1fut…npl7
Please upgrade and test!
#Django
https://whitenoise.readthedocs.io/en/stable/changelog.html

2024-10-22 15:16:24 UTC

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no, but I’m interested. I have a WIP Django test client that runs validator.nu on every response to check for valid HTML. I think similar to search for accessibility issues would be a neat way to do it.

2024-10-12 12:00:01 UTC

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Nice, did you see https://youtu.be/inRB6ull5WQ?si=WIzWKvWZDlMxhyVo ? Basically htmx developers trying to get relevant bits into the HTML spec

2024-09-28 01:17:40 UTC

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we have a few videos from @npub1j05…cx2c here: https://youtube.com/@djangolondon8379?si=Bc6XCpqqdbK_rjQq . Happy to add later through any open process there may be.

2024-09-12 10:08:52 UTC

Yesterday, I used the #Zed Multibuffer for two wide-reaching refactors, and wow, it really sped things up. I am slowly adopting Zed, but there are enough rough edges to keep me using Sublime for most tasks.
https://zed.dev/docs/multibuffers

2024-09-07 16:24:40 UTC

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No need to use the prefix, uv manages Python not the other way round. I guess they added support for convenience, to differentiate between multiple uv versions.

2024-09-07 09:47:50 UTC

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I have this installed which speeds up environment creation: https://pypi.org/project/pre-commit-uv/#description

2024-09-05 20:51:31 UTC

✍️ New post on a pattern for your API clients that read Django settings, using functools.cache and reloading based on the setting_changed signal.
#Django
https://adamj.eu/tech/2024/09/05/django-settings-api-clients/

2024-08-30 21:39:13 UTC

✍️ New post covering the fast and slow ways to rotate your Django secret key 🔑
#Django
https://adamj.eu/tech/2024/08/30/django-rotate-secret-key/

2024-08-08 11:29:53 UTC

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Ah, my bad, I misremembered.

2024-08-07 18:53:37 UTC

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CSS native masonry layout is available experimentally in some browsers, you could just use that with a fallback of aligned rows per https://piccalil.li/blog/masonry-and-tabbing/

2024-08-07 10:04:13 UTC

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ah yes I noticed this too :)

2024-08-04 08:39:17 UTC

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Thank you, I will get on this during the week.

2024-08-03 19:56:33 UTC

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Anthony treats his projects’ issue trackers as his personal inbox… can feel quite hostile to contribution and discussion.