Anže

Writing Python :python:, Django :django: and surfing waves 🏄‍♂️

Projects:
🧑‍💻 https://fedidevs.com find awesome devs across the fediverse
💻 https://github.com/anze3db/django-tui a TUI for all your Django commands

GitHub: https://github.com/anze3db
Website: https://pecar.me
Blog: https://blog.pecar.me
Twitter: https://twitter.com/anze3db

Public Key

npub15wdfr9znyzrrucep9sa57p4p823cpue65gch3r83wtn8qxax2l6qw8rte4

NIP-05 Address

anze3db_at_fosstodon.org@momostr.pink

Profile Code

nprofile1qqs28x53j3fjpp37vvsjcw60q6sn4guq7va2yvtc3nch9ensrwn90aqpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0ds4dp5ne

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub15wdfr9znyzrrucep9sa57p4p823cpue65gch3r83wtn8qxax2l6qw8rte4

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Last Notes

2025-10-20 08:55:09 UTC

us-east-1 is down, happy Monday!
https://cdn.fosstodon.org/media_attachments/files/115/405/652/528/467/943/original/6ea24e70cba0ada7.png

2025-10-11 09:23:55 UTC

I've improved the performance of the starter packs list query from about 200ms to 2ms. 🎉
The trick was to stop dynamically computing the number of accounts in a starter pack and instead precompute it in a column.
A bit more work on each update, but worth it!
https://cdn.fosstodon.org/media_attachments/files/115/354/804/798/945/653/original/cf9114068356c21a.png

2025-09-24 18:23:10 UTC

I'll be giving a talk about Free-threaded Python at the #01 - Python Lisbon Meetup next week (Oct 2)! 🎉
Hope to see you there!
https://www.meetup.com/python-lisbon-meetup/events/311204520/

2025-06-10 13:58:01 UTC

After a long break from writing, I finally published a new blog! It's about generating the image that you should see in the link preview unless it didn't work! 🤞
https://blog.pecar.me/autogenerating-og-image-with-jekyll

2025-06-08 22:09:49 UTC

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And today Portugal won the League of Nations! Not a bad weekend for 🇵🇹!!!
https://cdn.fosstodon.org/media_attachments/files/114/650/025/303/553/805/original/37bb03483e8b42de.png

2025-05-01 13:25:47 UTC

Your daily reminder that the AI overlords are not to be trusted!
https://cdn.fosstodon.org/media_attachments/files/114/432/799/227/909/696/original/376548c10cc46bcd.png

2025-04-11 13:43:14 UTC

Now that the Template Strings PEP has been accepted, we'll be able to reproduce that famous JavaScript slide in Python!
https://cdn.fosstodon.org/media_attachments/files/114/319/621/732/848/455/original/fe63fe21f6fc3601.png

2025-04-09 07:56:01 UTC

Anybody in my social circles has any experience with vcrpy? Is it a good tool to use for testing integrations with 3rd party APIs or best to use something like RESPX and create all the response fixtures manually?

2025-03-26 09:52:22 UTC

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not true. REST is one of the most widespread software architecture styles and open to anyone to use 🤪

2025-03-25 20:51:37 UTC

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thanks! I’ll give your way a try to see how I feel about it 😀

2025-03-25 20:05:44 UTC

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interesting. I have more questions if you don’t mind 😅
Is it always one object per fixture? How do you handle lists of objects or crating an object hierarchy like company - project - task - user?

2025-03-25 18:18:13 UTC

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do you end up with one or more functions per model? Feels a bit too boilerplatey to me. What I love the most about baker (as opposed to something like Faker) is that you don't have to write any extra classes/functions to generate model instances. You add baker.make calls to setUpTestData and you are good to go.

2025-03-25 13:00:48 UTC

I love pytest, but I could never get used to its fixture system.
However, pytest combined with Django's TestCase/SimpleTestCase is amazing, especially when paired with pytest-watcher!

2025-03-23 20:57:43 UTC

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I figured out that django-browser-reload was preventing gunicorn from shutting down cleanly.
In production (where django-browser-reload isn't enabled), I was seeing SIGKILL because of memory issues, so not related to worker shutdown as I initially thought.
I'm unsure if this helps you debug your issue, though.

2025-03-23 20:21:55 UTC

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I think what I'm seeing is a bit different. I don't have any issues with runserver, but if gunicorn serves one request, that worker won't exit cleanly and will require a SIGKILL.

2025-03-23 08:00:05 UTC

Has anyone been dealing with gunicorn workers running a Django app not shutting down gracefully and needing to be killed with SIGKILL?
The weird thing is that I can reproduce this locally with DEBUG=True but not with DEBUG=False. Any hints on how to debug?
https://cdn.fosstodon.org/media_attachments/files/114/210/688/503/723/518/original/298bfb80751511ac.png

2025-03-22 12:33:00 UTC

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agreed, but I wonder if a good system prompt or a specialized Django LLM trained on common pitfalls like this could do better.

2025-03-22 11:50:08 UTC

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Since starting a bg job before the changes in the database commit is such a common issue, Celery added delay_on_commit in version 5.4, how long till LLMs start recommending it?
https://docs.celeryq.dev/en/latest/reference/celery.contrib.django.task.html#celery.contrib.django.task.DjangoTask.delay_on_commit

2025-03-22 01:52:46 UTC

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Update: I'm not showing the follow-all stats (yet), but I'm now using this data to sort starter packs by popularity.
https://cdn.fosstodon.org/media_attachments/files/114/203/575/293/530/866/original/c1854814dcceee0c.png

2025-03-03 17:34:28 UTC

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there has been no recent code changes in this area, but I did adjust the visibility of accounts since the initial launch based on people's feedback.
If you let me know which account you are referring to, I can look into it. But I can't find any iceshrimp.de accounts added to any starter packs. 🤔

2025-03-02 20:52:45 UTC

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It is a little funny, yes 😆 but I don't think it's wrong - I don't want to limit starter pack creation (unless it's for a nefarious purpose).

2025-03-02 20:34:40 UTC

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Great suggestions, thanks! I wish I had the foresight to add tracking of follow all clicks, but unfortunately I didn't, so there isn't any historical data available 😔

2025-02-28 23:43:22 UTC

The Fedidevs Starter Packs UI is now available in 10 languages! 🎉
3 new were added in the last few months:
* 🇩🇰 Danish (thanks @npub1pv6…a7d8)
* Catalan (thanks @npub1e84…pylt and sorry for the belated announcement 😅)
* 🇵🇹 Portuguese (thanks to my SO ❤️)
https://fosstodon.org/@anze3db/113769198358285929
https://cdn.fosstodon.org/media_attachments/files/114/084/146/057/504/215/original/00ad73fe3fee42e2.png

2025-02-28 19:40:31 UTC

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oh great! Don't worry if you got something wrong, we can always fix it afterwards!
Do you need help setting up a github account or with git? If you want to you can also send me the translated po file through email and I'll add it on your behalf.

2025-02-28 01:43:15 UTC

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hey! I've just pushed the danish po file: https://github.com/anze3db/fedidevs/blob/main/locale/da/LC_MESSAGES/django.po if you open it in a po file editor (like Poedit) it should help you get all the strings translated.
Thanks so much for offering to do this, adding the Danish translation would be awesome! 🙇‍♂️

2025-01-31 21:49:38 UTC

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Yeah, I agree, with the amount of starter packs right now I'll have to figure out filtering. Thank you for the suggestion, I'll see what I can do 🙇‍♂️

2025-01-29 09:51:24 UTC

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Hey Michael! My goal is to support all types of services built on top of ActivityPub, but for now I still have some Mastodon specific code that I need to untangle first.
Fedidevs is a side project so my time on it is limited and I can't commit to a deadline, but supporting Pixelfed is already on my radar!

2025-01-27 14:02:07 UTC

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Update: You should now be to add todon.eu and todon.nl to starter packs again.
Keep in mind that the instance defaults are privacy centered so I about half of the accounts still won’t be eligible until they enable discoverable and opt in to search engine indexing in their account settings.

2025-01-26 23:39:35 UTC

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Hey, yes, admin of todon.eu and todon.nl asked me to block his sites because not all aspects of fedidevs are opt-in.
We have since then resolved his concerns and I was supposed to reenable the sites a few days ago, but I unfortunately got busy. I'll try to reenable both sites soon.

2025-01-21 00:08:28 UTC

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I doubt you’ll see any change in the benchmark for these, but let me know if you notice anything, I'm also curious!

2025-01-19 10:23:25 UTC

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I received the same email. It didn't look like an obvious scam until they mentioned crypto 😂

2025-01-03 15:18:33 UTC

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I think you can reproduce the whole of litestack in Django already:
Cache: `DatabaseCache` backend works with SQLite, right?
Queue/pub/sub: https://github.com/RealOrangeOne/django-tasks + DatabaseBackend
Full text search: ORM already supports it
But I guess we could wrap it all in a separate package for marketing purposes? 😂

2024-12-01 17:09:57 UTC

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Great! I imported the list into your starter pack.
Many of the accounts were from instances I haven't indexed/seen before, so accounts were not showing up in the search.
I definitively want to support nondev starter packs, so this is excellent feedback for me. I'll work on improving the UI for when the instance is not indexed, but in the meantime, if you have any other accounts to import, don't hesitate to send them my way!

2024-12-01 00:00:24 UTC

@npub1p6n…xcze Hey Antoine! I saw that you'd created a starter pack on fedidevs! Sorry, I don't have a way for you to import accounts, but if you send me the list of accounts that you want to add, I'll add them to your starter pack. Cheers!

2024-11-27 12:29:00 UTC

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never mind, it's still broken! But it was working perfectly for one day after the update 😖
https://cdn.fosstodon.org/media_attachments/files/113/554/917/749/903/683/original/7d467d3cb236d313.mp4

2024-11-27 11:00:06 UTC

I didn't see anyone talking about this, but the Sequoia 15.1.1 update fixed the emoji picker in Firefox! 🥳
https://cdn.fosstodon.org/media_attachments/files/113/554/568/347/911/504/original/6d2d7ccffd11099e.png

2024-11-27 01:16:28 UTC

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no, this is the first time I hear about Pulumi. An interesting project, but I'm guessing it's nowhere as popular as terraform for infra as code, right?

2024-11-23 11:36:17 UTC

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Yes, that's what I've been reading + https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/private-content-signed-urls.html
Setting all of this up with terraform is what I found challenging. In any case I think I figured it all out, so now I guess I should write a blog about it for future me and others 😄

2024-11-23 10:00:07 UTC

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It's okay to do this in some cases, but in general, you should set up CloudFront with signed URLs to better control who can access the uploaded files.
Django Storages supports signed URLs out of the box, but I couldn't find good docs on how to set it up. Any leads?

2024-11-23 10:00:06 UTC

This past week, I've spent a lot of time researching how to set up Django Storages with S3. Almost every blog or tutorial I've seen asks you to make the S3 bucket public, even though the AWS Console UI tries to discourage you from it:
https://cdn.fosstodon.org/media_attachments/files/113/531/683/166/130/340/original/21fb42192420c069.png

2024-08-31 14:00:31 UTC

New toy has arrived! ❤️
https://cdn.fosstodon.org/media_attachments/files/113/056/994/439/436/037/original/6276b249f3d24129.jpeg

2024-08-29 07:34:45 UTC

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I don't know if I fully agree with this, I worked on “engineered” Python projects (Django/Flask) for over 10 years and I never saw a practical benefit to having the web app packaged.
To me lib vs app distinction fits better in my brain. You create a package when you want to use it as a lib in another project.

2024-08-28 20:06:41 UTC

Amazing! The uv team shipped first class support for Python projects that are not designed as packages (think Django aplications!).
They even switched some defaults around to better support this use case! 💚
https://github.com/astral-sh/uv/releases/tag/0.4.0

2024-08-27 12:08:18 UTC

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There is probably a measurable difference when the tracing is on, but practically I don't think it makes an actual impact at least not in Python.
Most tracing tools also allow you to configure the sample rate so you can have tracing on for like 0.1% of your requests which will still show you trends but limits the impact.

2024-08-27 10:58:29 UTC

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Hm... l managed to shave of 100ms of rendering time by inlining an inclusion tag, that I was using inside a for loop.
I'll report back if this change also translates in a similar improvement in prod where the cached template loader is used.
The commit diff is here if you are curious: https://github.com/anze3db/fedidevs/commit/7bf9870d8ab42924ea4b23a292af3ecf0177dc9b
https://cdn.fosstodon.org/media_attachments/files/113/033/628/956/382/591/original/4d5d680432fd7671.png
https://cdn.fosstodon.org/media_attachments/files/113/033/629/235/205/003/original/6f147ee37ddb34f1.png

2024-08-27 09:25:30 UTC

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yeah, could be, but I'm now digging into this and it looks like template rendering is taking the longest even in some faster requests. I'll see if I can figure out what could be causing this.
https://cdn.fosstodon.org/media_attachments/files/113/033/263/592/887/651/original/9f1f2bbf19f5e037.png

2024-08-27 09:04:55 UTC

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the SD card issue was my own blunder. I am using an SD card that can only read up to 4mb/, but I could have easily gotten one that goes up to 100mb/s 😅
Also, this was the only trace that I have out of 100k requests from yesterday that was over 400ms long.

2024-08-27 08:56:52 UTC

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the SD card that I'm using is too slow for this disk caching to be viable 😅

2024-08-27 08:51:26 UTC

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There is one 2.7ms db query that gets run during template rendering. The other three queries are run before the rendering starts and are also below 200ms, so I'm pretty sure the template rendering took the longest at around 500ms.
The raspberry pi doesn't have the fastest CPU so this might not be an issue on a regular host.

2024-08-27 08:18:26 UTC

First time that I see template rendering being a bit of a bottle neck in a Django app.
This was on a Raspberry Pi 4 while all 4 cores were over 80%.
https://cdn.fosstodon.org/media_attachments/files/113/033/000/074/953/064/original/bedaed7d74470e46.png

2024-08-08 11:25:47 UTC

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I’ll try it out, but the browser support really isn't great 😅
https://cdn.fosstodon.org/media_attachments/files/112/926/152/656/691/075/original/20cbd52764ed2522.jpeg

2024-05-22 13:22:54 UTC

Quick takeaway from the public speaking workshop: you don’t need an about me slide.
BRB while I update my presentations 😂
#PyconIT2024