adamchainz

adamchainz, 6 days ago to random

Loving all the @djangonaut mentions at @djangoconeurope, including this lightning talk from Raffaella

#DjangoConEurope

adamchainz, 15 days ago to django

🆙 django-upgrade 1.18.0 is out, with support for Django 5.1 (currently in alpha) and a fixer for the argument rename in CheckConstraint:

https://github.com/adamchainz/django-upgrade?tab=readme-ov-file#django-51

#Django

adamchainz, 21 days ago to random

♦️ Yay, my #Git force push blog post was featured in this week’s @pythonbytes ! 🥳

https://pythonbytes.fm/episodes/show/384/force-push-lightly

adamchainz, 21 days ago to python

🐍♦️ Use Git to pass pytest a list of all modified test files:

pytest $(git diff --name-only '/test_.py')

Adjust the pathspec (Git’s “glob” syntax) if you have a different test file naming convention.

#Python #Git

adamchainz, 23 days ago to random

♦️ There is a safer alternative to 'git push --force'!

🫸 Use --force-with-lease and --force-if-includes to restrict force pushes so that they don’t unintentionally overwrite commits pushed by others.

Explained in my post: https://adamj.eu/tech/2023/10/31/git-force-push-safely/

#Git

adamchainz, 26 days ago to django

I’m helping a client upgrade to django-import-export v4, and I gotta say I’m enjoying the clarity of the release notes. Every breaking change spelled out, with PR links. Thank you Matt :)

#Django

https://django-import-export.readthedocs.io/en/stable/release_notes.html

adamchainz, 28 days ago to python

A #pytest pattern I’ve recently enjoyed using:

1. Change some function in a way that needs fixes to call sites.
2. Run the whole test suite with pytest.
3. Copy the list of failing test IDs from pytest’s summary into a scratch file.
4. Fix up the found callers.
5. Verify everything fixed by saving the list of tests with: pytest $(cat scratch/testids.txt)

#Python #Testing

adamchainz, 1 month ago to random

Just blocked a bunch more AI bots in my site’s robots.txt, thanks to this post from @cory:

https://coryd.dev/posts/2024/go-ahead-and-block-ai-web-crawlers/

adamchainz, 1 month ago to python

✍️ New post covering a small #Python helper to return all subclasses of a given class.

https://adamj.eu/tech/2024/05/10/python-all-subclasses/

adamchainz, 1 month ago to django

✍️ New post on my new package django-harlequin.

🦆 This package provides a small launcher command for Harlequin, the Terminal-based SQL IDE by Ted Conbeer.

💽 Try it out and let me know what you think!

#Django #SQL

https://adamj.eu/tech/2024/05/07/django-harlequin/

adamchainz, 1 month ago to django

✍️ New post covering a #Django admin extension I wrote to prevent a certain kind of inter-request state leakage.

Perhaps niche, perhaps worth adding to Django?

https://adamj.eu/tech/2024/04/29/django-admin-prevent-leaking-requests/

adamchainz, 1 month ago to python

✍️ New post covering a “diffing” unit test in #Python, which checks copy-paste-tweaked code is in sync with the upstream library.

I used this technique recently on a #Django upgrade and I’m curious if anyone else has done similar.

https://adamj.eu/tech/2024/04/26/python-diffing-unit-test/

adamchainz, 1 month ago to random

I got another commit in #Git 🥳

The book-driven development continues…

https://github.com/git/git/commit/89c6d6c74c61ae7013215b31b8612fd708899fbf

adamchainz, 1 month ago to python

✍️ New post with a little recipe for generating “line number paths” for #Python classes and functions.

from inspect import getsourcefile, getsourcelines
print(f"{getsourcefile(obj)}:{getsourcelines(obj)[1]}")

✏️ I use this pattern sometimes for batch edits.

https://adamj.eu/tech/2024/04/25/python-line-number-paths-inspect/

adamchainz, 1 month ago to random

Looking back at sales data for last Black Friday, https://BlackFridayDeals.dev really helped drive many sales of my books. It’s great there’s a focal point for developer-related deals, and I’ll definitely ensure to post there for future sales.

adamchainz, 1 month ago to random

It’s time to believe in trans rights

adamchainz, 1 month ago to random

I had a great time talking last night, we had a really engaged audience who asked many good questions.

https://fosstodon.org/@djangolondon/112286202502892368

adamchainz, 1 month ago to django

Looking forward to distributing these newly acquired fantastic #Django stickers at @djangolondon tonight.

Made by @sjbitcode & @adamghill , see: https://alldjango.com/stickers

adamchainz, 1 month ago to django

Exclusive alpha preview at @djangolondon tonight… #Django

https://fosstodon.org/@djangoconeurope/112280341097981135

adamchainz, 1 month ago to random

Ooh, new newsletter just dropped from Carlton... I’m looking forward to the first full Stack Report issue

https://fosstodon.org/@carlton/112258636006734175

adamchainz, 2 months ago to random

🆙 I just released an update to Boost Your #Git DX. This update adds some extra content and has a bunch of edits based on reader feedback. The PDF is now ten pages longer, for a total of 363.

🤑 Also, there’s a 10% discount for today only. Gumroad are waiving their fees for their birthday celebration, and I’m passing the savings on to you.

👉 Buy the book here: https://adamchainz.gumroad.com/l/bygdx

♦️ Or read more about the update here: https://adamj.eu/tech/2024/04/04/bygdx-update/

adamchainz, 2 months ago to python

🏎️ Last night, I fixed a segmentation fault bug in my #Python testing library time-machine.

🤷 There were several outstanding issues about segmentation faults with unclear causes, and I didn’t have time to dive into them.

🐛 Then I received a new bug report from Marcin Sulikowski with a minimal reproduction. This research pointed directly at the problem and revealed the other reports as duplicates.

👏 Clear and reproducible bug reports are very valuable contributions!

#TodayInOpenSource

adamchainz, 2 months ago to django

👏 Massive congratulations to Sarah Boyce (@sarahboyce) for being chosen as the new #Django fellow.

https://www.djangoproject.com/weblog/2024/mar/22/welcome-our-new-fellow-sarah-boyce/

adamchainz, 2 months ago to django

✍️ New post on some work I’ve done optimizing Django’s system check framework.

💡 This is a bit of a long post, about 3k words. I hope you learn something from it.

#Django #Python

https://adamj.eu/tech/2024/03/23/django-optimizing-system-checks/

adamchainz, 2 months ago to python

⏱️ After 6.5 years, pywatchman released a new version at the beginning of the month, including #Python 3.10+ support. Yay!

🦄 Django’s runserver can use pywatchman to drastically reduce the CPU cost of autoreloading. #Django gets pywatchman to send it file change notifications from the OS rather than polling every file every second.

✍️ In January, I removed the watchman section from Boost Your Django DX due to the incompatibility. But now I can restore it. 😊

https://pypi.org/project/pywatchman/#history