Added docs/comments near places that are magnets for invalid (AI generated) security reports in Werkzeug. Maybe those tools will read these docs when scanning the code and will produce output that says it's not a security issue? Maybe? At least we can point to it next time if not.
https://github.com/pallets/werkzeug/pull/3252
#Python #Flask

Je vous raconte, c'est tordu.

J'exécute subprocess.Popen(["ipython", "kernel", f"-f={cfg}"]) pour lancer un kernel #Python et m'y connecter plus tard.

Si cfg est un chemin relatif (genre "./toto"), rien à signaler. Mais si cfg est un chemin absolu (genre "/home/azerty/foo/toto"), alors mon son parent ("foo") reçoit le bit t. C'est n'importe quoi...

Pour arranger les choses, les dev de #ipython ont limité la soumission de bugs aux devs du projet. Bah on va vivre avec ça du coup...

LWN covered my talk on pathlib from #PyConUS!

If you're using #Python and not using the pathlib module, check it out. I think that it's one of the most underused modules in the Python standard library.

https://lwn.net/SubscriberLink/1088781/4b4dd24ed3ee5f99/

Join the Djangonaut Space Session7 to grow as a contributor in the #django and #python ecosystem with the support of community and mentors.

Applications are open until September 6th AoE.

Read our blog post to find out how the program works:
https://djangonaut.space/comms/2026/08/14/2026-opening-session-7/

Projects involved in Session 7:

🐝 @beeware docs
🟢 @django & accessibility
💚 @djangocms
🐛 django-debug-toolbar
🧡 @djangogirls
⚙️ Render Engine

Alt...

Projects related to Django and Python, including Django Debug Toolbar, Django Girls+, BeeWarem Django, djangoCMS and Render Engine involved in the Djangonaut Space program.

Je vous raconte, c'est tordu.

J'exécute subprocess.Popen(["ipython", "kernel", f"-f={cfg}"]) pour lancer un kernel #Python et m'y connecter plus tard.

Si cfg est un chemin relatif (genre "./toto"), rien à signaler. Mais si cfg est un chemin absolu (genre "/home/azerty/foo/toto"), alors mon son parent ("foo") reçoit le bit t. C'est n'importe quoi...

Pour arranger les choses, les dev de #ipython ont limité la soumission de bugs aux devs du projet. Bah on va vivre avec ça du coup...

My latest blog post: Extending CircuitPython with Native Modules - Part 3

https://mikecoats.com/extending-circuitpython-native-module-3/

For CircuitPython Day 2026, I wanted to get close to the metal and write a module in C that I could call from CircuitPython. Finally, we bundle everything inside a class.

#circuitPython #circuitPythonDay #circuitPythonDay2026 #code #embedded #electronics #esp32 #espressif #python

¡Para la próxima semana el grupo de trabajo de Diversidad e Inclusión de PSF tendrá un espacio en el Discord de la PSF!

Únete el August 25 9 PM UTC en el canal #psf-diversity para charlar, hacer preguntas y compartir en qué estás trabajando 🐍🗺️

https://pyfound.blogspot.com/2026/07/the-psf-d-workgroup-are-starting-office.html

#Python

The PSF Diversity & Inclusion Workgroup monthly office hours are next week on the PSF Discord!

Join us August 25 9 PM UTC in #psf-diversity to chat, ask questions, and share what you're working on 🐍🗺️

#Python
https://pyfound.blogspot.com/2026/07/the-psf-d-workgroup-are-starting-office.html

#fedihire #hiring #python #django #aws

UK based only - Senior Developer for The Electoral Commission // £70,000 // fully remote possible, hybrid at UK hubs also fine if your preference.

Fancy working with interesting data problems, and services that need to scale to millions of voters? You'll help bring a major voter-information service in-house and shape what comes next.

YOUR COUNTRY NEEDS YOU! We all need you. Plz.

Interested? I'm sole recruiter for this > thayer@team-prime.com CVs pls!

I built a new thing, an idea I have wanted to try for a long time.

Since writing wrapt, the idea was to build on it for two jobs I saw as one: unit testing in the spirit of mock, and tracing execution across real code. Same bindings for both, no changes to the code being observed. wrapture is the answer I ended up with.

First alpha on PyPI. Curious what people make of it.

https://github.com/GrahamDumpleton/wrapture

#Python

[$] Representing Python paths using pathlib

At the outset of his PyCon US 2026 talk, Trey Hunner said that his goal was for attendees to stop representing filesystem paths as strings and to use pathlib instead. That's kind [...]

https://lwn.net/Articles/1088781/

#LWN #Linux #Python

@lwn then make it possible for paths to represent directories.

#python

Python Tip #232 (of 365):

Try to avoid static methods in Python.

A static method is a function that HAPPENS to live on a class. It doesn't know the instance (or class) it's called on.

They're usually helper functions that live on a class for organizational reasons:

class Hasher:
...
@staticmethod
def _checksum_matches(hash_object, checksum):
checksum_bytes = bytes.fromhex(checksum)
return checksum_bytes == hash_object.digest()

🧵 (1/3)

#Python #DailyPythonTip

Should we remove Flask's interactive debugger? (Being able to execute code at any frame in a traceback.) It's a huge amount of complexity and source of constant invalid security reports. I'm not sure it's been needed for a long time. https://github.com/pallets/werkzeug/issues/3244 #python #flask

Nouvelle instance (comment ça 10 jours ?), nouvelle intro !
Admin sys Linux/BSD et adepte du logiciel libre.
Je bricole et, code en Python
je parle parfois de science.
Je préfère l’intelligence artisanale à l’intelligence artificielle.
Héberger ses données plutôt que de les offrir aux GAFAM.
Team #ergol et je m'interresse aux #poticlavier
#Linux #BSD #FOSS #SelfHosting #Python #Homelab #introduction

r is for REPL

Python's REPL (read-eval-print loop) is an interactive playground for writing and executing Python code and one of the big reasons why I likely ended up enjoying Python more than other languages when I was learning programming.

It has so many uses: buidling your code step by step, running interactive shell script style operations, exploring Django's models and debugging.

https://hamatti.org/posts/r-is-for-repl-python-a-to-z/

#Python #Blaugust #Blaugust2026

RE: https://mastodon.world/@hamatti/117127427365915452

Some neat startup script tips in here, and for Python 3.15 you could do this for nicer pprint output:

pp = Printer(expand=True, indent=4)

#Python #Python315 #REPL #pprint

Juhis » 🌐 2026-08-20 / 2026-08-20
@hamatti@mastodon.world

r is for REPL

Python's REPL (read-eval-print loop) is an interactive playground for writing and executing Python code and one of the big reasons why I likely ended up enjoying Python more than other languages when I was learning programming.

It has so many uses: buidling your code step by step, running interactive shell script style operations, exploring Django's models and debugging.

https://hamatti.org/posts/r-is-for-repl-python-a-to-z/

#Python #Blaugust #Blaugust2026

My latest blog post: Extending CircuitPython with Native Modules - Part 2

https://mikecoats.com/extending-circuitpython-native-module-2/

For CircuitPython Day 2026, I wanted to get close to the metal and write a module in C that I could call from CircuitPython. This time, we're looking at adding a module-level method.

#adafruit #circuitPython #circuitPythonDay #circuitPythonDay2026 #code #embedded #electronics #esp32 #espressif #python

Looking to get active during DjangoCon US?

We've put together a guide with ideas for walking, running, biking, swimming, and exploring Chicago during the conference.

https://2026.djangocon.us/news/get-active-at-djangocon-us/

#Django #Python

Does your local meetup community need a website? Because I have just the theme for you.

Every community I've helped run has needed a website, and every time, we'd spent time hours browsing for themes and ended up rebuilding it from scratch, because none of the themes are meant for communities. Until now.

Introducing "Popular", a static site theme built especially for community & meetup groups, works in Hugo & Astro.

Blog: https://mariatta.ca/posts/no-more-rebuilding-the-community-website/

#PyLadies #Python #Hugo #Astro #Community

Python Tip #231 (of 365):

Use class methods as alternate constructors.

>>> s = Square.from_area(100)
>>> s.length
10.0

The classmethod decorator makes a method that's meant to be called on the class itself (not on an instance):

import math

class Square:
def __init__(self, length, color=None):
self.length = length
self.color = color
@classmethod
def from_area(cls, area, color=None):
return cls(math.sqrt(area), color)

🧵 (1/4)

#Python #DailyPythonTip

We could really use some help with Twisted's #Python #XMPP and #Jabber implementation. Could you DM if these terms of are of interest to you and if you have any spare capacity to review a little bit of code? It would be much appreciated.

“You can think of abstract base classes that rely on registering as similar to an opt-in duck.”

Read more 👉 https://pym.dev/goose-typing/

#Python

Holy cow, remember to clean your #uv cache from time to time, folks 😅

UPDATE: Seems to contain some links, deleting the cache only freed like 9GiB, but still...

#Python

Alt...

/home/yann/.cache/uv/ 27,6 GiB 505.110 Dateien (15 %)

The people vs the AI overlords https://anarc.at/blog/2026-08-18-people-vs-ai-overlords #llm #analysis #sysadmin #work #debian-planet #python-planet #free-software

The Python Morsels REPL now runs on the new pyrepl! In browsers that don't support JSPI.

https://pym.dev/repl

As of very recently, both Chrome and Firefox support the JavaScript Promise Interface, which is what's needed to get pyrepl (the new REPL in Python 3.13+) to work in WebAssembly.

it falls back to the old REPL.

Thanks to @ambv & whoever else helped (can't seem to find the PR) with getting pyrepl working in the browser!

#Python #WebAssembly

@fitheach Try list-table or csv-table instead:
https://www.sphinx-doc.org/en/master/usage/restructuredtext/directives.html#tables
#markup #Python

In general, I prefer reStructuredText to other markups, because I find it more capable, for my needs.

The one exception to this is Tables. Whoever designed the rst syntax for tables should be taken around the back of the building, and shot.

I've just spent over an hour fiddling with -, =, and + to get my tables to work in 3 documents.

#markup #python

#PyPI runs on ~zero AWS cost thanks to @fastlydevs caching 99% of traffic + AWS credits covering the rest. Huge thanks to both! But 2026 broke an 8-year streak: AWS spend is up 69% YoY as agents & CI runs surge.

@Monorepo, PSF Director of Engineering, on what's changing: https://pyfound.blogspot.com/2026/08/how-aws-powers-pypi-and-psf.html

#Python

Gunicorn now categorises "Framework returns content on HEAD requests" as a bug, and warns about it for every request.

Django's position is "Web servers should automatically strip the content of responses to HEAD requests while leaving the headers unchanged".

So, that's fun! 🫠
(Screenshot shows ASGI commit, but it was added to WSGI too.)

#django #python #gunicorn

Alt...

Django docs screenshot, highlight reads "Web servers should automatically strip the content of responses to HEAD requests while leaving the headers unchanged"

Alt...

gunicorn commit, message: fix: warn once when ASGI app emits a body for a no-body response A framework bug — say, returning bytes from a HEAD or 204 handler — is now logged at WARNING level the first time it happens for a request so the misbehavior is visible without spamming on multi-chunk streams.

q is for Q

Django's Q objects make more complex queries easier to read and they can improve reusability and documentation of your code by giving individual queries and query parts names.

https://hamatti.org/posts/q-is-for-q-python-a-to-z/

#Python #Django #Blaugust #Blaugust2026

Python Tip #230 (of 365):

Use a single underscore prefix for internal attributes.

This _digits attribute is private... but only by convention:

import re

class PhoneNumber:
def __init__(self, number):
self._digits = re.sub(r"\D", "", number)
...

This (not fully implemented) class includes str() and an area_code attribute as its public interface:

>>> wh = PhoneNumber("(202) 456-1414")
>>> print(wh)
202-456-1414
>>> wh.area_code
'202'

🧵 (1/3)

#Python #DailyPythonTip

A neat security vulnerability in Python caused by str.lower(). Also includes lots of RFCs so I’m having a good time :)

https://sethmlarson.dev/when-str-lower-is-a-security-vulnerability

#security #python #idna

✍️ I used my leet prompt engineering skillz to fix a bunch of bugs in django-upgrade

https://adamj.eu/tech/2026/08/18/django-upgrade-1.32.0-44-bug-fixes/

#Django #Python #AI

Alright Fedi, I'm looking for a job out of AI hell. I know chances aren't great for anyone right now, but I'm taking mine anyway.

I'm a (senior?) #Python developer with 10 years of experience in both #DataScience and #SoftwareEngineering (with a preference for the latter). I can find my way around #Rust and don't shy away from #JavaScript. I've done a bit of #React lately and haven't found it terrible.

I thrive in team environments where I have time both to work on my own and in pairs or mobs ( https://mob.sh is a great tool I'd use again, but IntelliJ's Code With Me works too).

My greatest passion is automating the tasks around coding away - testing, building, deploying code with either the shortest set of commands or just fully automated from a pipeline on pull/merge requests.

I won't say no to places that require me to use AI, but I have a strong preference to be able to write my code myself.

Would love boosts for reach! Also thanks for reading 💖

#FediJob #BoostsWelcome #BoostsAppreciated

“We can automatically decode the output of this process using the default character encoding, by specifying text=True when we call subprocess.run:”

Read more 👉 https://pym.dev/running-subprocesses-in-python/

#Python

«Finger: the 1971 social network that never died»

It will surprise more than a few of you to hear that the first social network dates back to 1971; no accounts, no algorithm, no central server, just a plain text file you control.

https://en.andros.dev/blog/54572bc7/finger-the-1971-social-network-that-never-died/

#Gemini #IndieWeb #OpenSource #Python #Linux #OrgSocial

[$] Bootstrappable builds: how and why

This year's edition of the Free and Open Source Software Yearly conference, better known as "FOSSY", moved north to the beautiful (and enormous) campus of the University of British [...]

https://lwn.net/Articles/1088279/

#LWN #Linux #Debian #GCC #Rust #Python #Perl #Git

If anyone cares about #NetBSD and #Python :

https://github.com/borgbackup/borg/issues/5922

There is also an issue about that on the NetBSD issue tracker since quite a while, but guess it was overlooked.

Ich habe mir letzte Woche von einem LLM ein kleines Pythonscript erstellen lassen. Es sollte meine .ssh/config auslesen, dort jeden eingetragenen Host finden, und dann für jeden Host einen übergebenen Befehl ausführen. Also ich rufe "./remote.py apt update" auf, und dadurch soll für jeden Host "ssh hostname apt update" aufgerufen werden. Bis alles funktioniert hat, dauerte es ca. 20min. Leider waren da recht komplexe Regular Expressions drinnen (ein Kenntnis die ich immer noch nicht erlangt habe) und ich habe nicht wirklich jede Zeile verstanden was dort vor sich ging. Wenn ich mich selbst hinsetze und das schreibe, was ich gerade versucht habe, brauche ich auch 20min. Habe dabei aber wieder etwas mehr Python gelernt anstatt prompts so zu formulieren, dass auch das dabei herauskommt was ich möchte. Ein weiterer Vorteil: ich verstehe jede Zeile meines Scripts.
Mein Script ist übrigens eine Zeile kürzer wie das generierte, auch wenn das nur das "import re" ist, welches wegfällt. Ich programmiere ja viel Automatisierungen in der Industrie. Da sind wir es gewohnt lieber eine Zeile mehr zu programmieren, dafür ist es lesbarer für die Person, die das nach uns maintainen muss.
Um fair zu sein sollte ich sagen, dass ich einige Fehler schon umgehen konnte, weil das LLM die schong emacht hatte, ich also eventuell selbst 5 - 10min länger gebraucht hätte.
#linux #homeserver #python #scripting

Bei uns steht eine #Langzeit #Messung an - die ist weit weg - läuft n Jahr 24/7

Mein Ich von 201x würd hier #LabVIEW Programm schreiben und ne #Windows Kiste verwenden mit ner remote Desktop Lösungen aka anydesk

Mein 2025 Ich hat schon dazu gelernt und ich hab n schickes #Python Programm entwickelt... Auf dem #Mac - aber das ist lief auch schon testweise aufm #raspi

Da wir das irgendwo Vorort Aufbau wollen wäre Laptop die beste Lösung - also mal im Schrank geschaut was da noch so ist: hp probook 650 g1 - i5 4gen 8gb RAM SSD drin - #hardwarereuse

Debian mit KDE Plasma darauf - #hermes_agent installiert - und dann wurde mir erst klar wie genial das wieder mal ist... #debian13 #linux

Hermes mit #glm52 hat Programm gecloned und automatisch in Betrieb genommen - hätte ich auch noch hinbekommen - Zeit gespart

Mit Hermes und der Kommunikation über Matrix brauchen wir uns keine Gedanken über Netzwerk-Ports machen im Ziel Gebäude - alternativ können wir tailscale nach Installatieren #easydeployment

Mit Hermes hab ich ein System das die Messung überwachen kann - läuft noch alles? Und dann direkt Bescheid sagt #watchdog

Noch verrückter - er kann mir dort Vorort auch debuggen und ggf fehler beheben obwohl das Gerät schon 400km weg von mir ist - wie wenn ich davor sitze #softwareengineering

Ich mach das mit den VServer Tag täglich - aber das mein Messtechnik Job so viel einfacher wird - das wird mir jetzt erst klar

Könnte theoretisch 100 solche Messungen betreuen 🤯

Python Tip #229 (of 365):

Don't overuse classes.

Writing Python code does NOT require writing classes.

Unlike many programming languages, you can accomplish quite a bit in Python without ever making a class.

The most common reason to write a class is that a framework REQUIRES one (like Django's Model classes).

The best reason to write your OWN class: you have data and functionality that clearly belong together.

🧵 (1/3)

#Python #DailyPythonTip

A welcoming community starts with all of us. 💚

As you prepare for DjangoCon US 2026, we encourage everyone to take a few minutes to read our Code of Conduct. It helps ensure our conference remains a safe, respectful, and inclusive space for all attendees.

🔗 Read it here: https://2026.djangocon.us/conduct/

#Django #Python #OpenSource

🎉 We’re excited to welcome Dawn Wages as a keynote speaker at DjangoCon US!

Drawing on Star Trek, Octavia Butler, and Afrofuturism, Dawn will explore leadership, belonging, community, and building better futures through open source.

📅 Aug 24–28 | Chicago
https://2026.djangocon.us/news/keynote-dawn-wages/

#Django #Python #DjangoConUS

RE: https://fosstodon.org/@dongheena/117110919917203349

🐍🇰🇷🏃‍♂️ Thanks to all the sprinters for contributing to #CPython, and to @dongheena for running this with me!

#PyConKorea #PyConKorea2026 #PyConKR #PyConKR2026 #MakeItHappy #PyCon #Python

Lily boosted

Donghee Na » 🌐 2026-08-17
@dongheena@fosstodon.org

Today, we held a CPython sprint in Seoul as part of PyCon Korea!

In just one day, participants created 19+ PRs, including devguide contributions and backport patches. It was great to see so many people contributing to CPython, especially first-time contributors.

Huge thanks to everyone who created the @europython sprint materials, which helped us a lot today, and to @hugovk for actively supporting and mentoring our participants throughout the sprint!

I've become interested in learning Python after doing a bit of scripting in Ruby... I wonder what is the best way of getting into programming with it? I suspect a good start would be to get Jupyter Lab installed, but is there a good book or website that people recommend for learning the language specifically? So far I've found Python's own website to be a great resource!

#programming #python

o is for orm

What a way to start a new week: talking about Django's ORM. Whether to like ORMs or not seems to be a divisive topic among developer. I love them and Django's one is my favourite flavour.

https://hamatti.org/posts/o-is-for-orm-python-a-to-z/

#Python #Django #Blaugust #Blaugust2026

Maintenant que les démarches administratives sont faites, je peux enfin l'annoncer : je suis maintenant en freelance !
Développeur spécialisé dans le Web avec PHP (vanilla & Symfony) et Python (surtout avec Flask), avec de solides connaissances en JS (vanilla & Vue.js), je réalise tous les développements en tenant compte des besoins en accessibilité, en écoconception et du RGPD dès la conception.
Réalisations entièrement faites par un cerveau biologique.

#freelance #WebDev #PHP #Python

🐍 Python Kurs #01 – Visual Studio Code installieren

Du möchtest Python lernen? Dann starten wir mit der richtigen Entwicklungsumgebung! 🚀

In Teil 1 der modernisierten Python-Serie installieren wir Visual Studio Code und bereiten alles für die ersten eigenen Python-Programme vor.

👉 Ideal für Python-Anfänger
👉 Schritt für Schritt erklärt
👉 Grundlage für die kommenden Folgen

📺 Die Python-Serie:
https://www.youtube.com/playlist?list=PLq7y778vthUCwD7ChirG9VilGM6o4KKk8

#Python #PythonFürAnfänger #Programmieren #Coding #Linux

Hudson River Trading is hiring Site Reliability Engineer - Enterprise Technology

🔧 #python #ansible #aws #azure #cicd #gcp #kubernetes #terraform
🌎 New York, New York
⏰ Full-time
🏢 Hudson River Trading

Job details https://jobsfordevelopers.com/jobs/site-reliability-engineer-enterprise-technology-at-hudsonrivertrading-com-may-18-2026-09cdd8?utm_source=mastodon.world&utm_medium=social&utm_campaign=posting
#jobalert #jobsearch #hiring

“You don't need to implement binary search yourself.”

Read more 👉 https://pym.dev/binary-search/

#Python

Not going to make it to Chicago for DjangoCon US 2026? That's ok, I mean I'll miss you, but did you know you can watch all of the talk lives for cheap? Grab a ticket and help support the conference and community! https://ti.to/defna/djangocon-us-2026 #django #python

A huge thank you to REVSYS for sponsoring DjangoCon US 2026! 🎉

For years, REVSYS has been a valued part of the Django ecosystem, helping organizations build and maintain reliable Django applications while supporting the open source community.

We're grateful for your support!

#Django #Python

Python Tip #228 (of 365):

Don't catch NameError exceptions. 🧵

This is an issue:

try:
start, end = parse_date(row["start"]), parse_date(row["end"])
except (ValueError, TypeError, KeyError, NameError):
print(f"Invalid date on line {n}", file=sys.stderr)
continue

A NameError is raised when a variable isn't defined... which usually means a variable name was MISSPELLED.

🧵 (1/3)

#Python #DailyPythonTip

Just 8 days left until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/
#Django #Python

I am excited about #PyConJP where I will give my #Japanese talk debut. どうぞよろしくね！Also there will be dedicated #PyLadies sessions. Come join us!

#Python #AI #OSS #pyconjp2026 #パイソン #プログラミング #エンジニア

Ihr erinnert mich an mein CachyOS Couch Gaming Experiment?

Ich bin endlich mal dazu gekommen, den Frickelcode meines Gamepad-Login-Screens ein wenig aufzuräumen und auf GitHub hochzuladen.

Ich bin nicht ganz sicher, ob die Anleitung vollständig und verständlich ist. Es könnte sein, dass ich noch ein paar Rechteeinstellungen vergessen habe. Also schaut gerne rein und testet es aus

https://github.com/Nephirelle/gamepad_greeter

#CachyOS #Greetd #Pygame #Python #CouchGaming #LinuxGaming #Games #Gaming #Linux #GitHub

You've all started testing the #Python 3.15 release candidate, right?
Oh, you can't because it's not on AWS Lambda? Good news, it's now available along with Node.js 26 as a preview:
https://aws-news.com/article/2026-08-15-introducing-public-preview-runtimes-on-aws-lambda-starting-with-nodejs-26-and-python-315

Python Tip #227 (of 365):

Don't rely on clever implementation details. 🧵

In CPython, two 3's are identical:

>>> x = 3
>>> y = 3
>>> x is y
True

But two 300's are not always identical:

>>> x = 300
>>> y = 300
>>> x is y
False

Don't rely on this. Compare numbers with ==.

In CPython, integers from -5 to 256 are created on launch, so every 200 is identical to every other 200.

Bigger numbers are only identical sometimes:

>>> x, y = 300, 300
>>> x is y
True

🧵 (1/2)

#Python #DailyPythonTip

Alex Martelli coined the term "goose typing" to describe this ability in Python to practice duck typing while also using isinstance and issubclass.

Read more 👉 https://pym.dev/goose-typing/

#Python

Just 9 days left until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/
#Django #Python

The best recruiters are where the developers are.

@foxleytalent is the go-to recruiter for the Django community in the US, and Jon Gould will be back in Chicago for his fourth DjangoCon US!

We’re looking forward to having Foxley Talent and Jon with us in Chicago! 🐍

#DjangoConUS #Django #Python #Hiring

Fun first day at #PyConKorea, meeting the local community and especially hearing how they're not only building but sustaining communities:

🐍 @dongheena building a #Python language support team, starting informally to encourage participation

🐍Luna building PyLadies Seoul through asking for help and learning to teach

🐍 Jiwoo Oh, Jiyoung Hwang & Juyeong Lee jumped right into a big open-source project and learned early the importance of collaboration

#PyConKorea #PyConKorea2026 #MakeItHappy

Alt...

the words "PyCon Korea" on a wall, composed from the names of attendees.

Alt...

Let’s Build a Python Language Support Team - Donghee Na

Alt...

Growth together with PyLadies Seoul - Luna

Alt...

"Is it really okay to change it like this...?" An Undergrad's Journey of Contributing to OpenStack (feat. Surviving the Python Ecosystem) - Jiwoo Oh, Jiyoung Hwang , Juyeong Lee

Want to get more involved at DjangoCon US? 🙋

Volunteering is a great way to meet people, give back to the community, and help make the conference possible.

📖 Learn more: https://2026.djangocon.us/news/why-you-should-volunteer/

Sign up: https://automation.defna.org/volunteers/

#Django #Python

Python Tip #226 (of 365):

Don't assign to global variables from within a function.

You CAN do this in Python. But you really shouldn't.

Yesterday's tip noted that assignments within a function NORMALLY make local variables.

But they don't always...

Python's "global" statement is the exception:

>>> phrase = "Hi world"
>>> def set_phrase(name):
... global phrase
... phrase = f"Hello {name}"
...
>>> set_phrase("Trey")
>>> phrase
'Hello Trey'

🧵 (1/2)

#Python #DailyPythonTip

I have an open source project: https://codeberg.org/thesupertechie/pncli

For now it's very barebones. Anyone know where to get suggestions for improving it further?

#foss #opensource #python #imade #phonenumbers #ideaswanted

Le mec se dit "Bon bah maintenant que #Python a embrassé le #AIslop , il serait peut être temps de jeter un coup d'oeil a #Julia."

Un coup d'oeil au commit sur le depo de la lib standard, des commits de #Claude dans tous les sens.

Bon bah il est peut être temps de quitter le calcul scientifique finalement.

📰 Issue 350: Django moves to an annual release cycle

https://django-news.com/archive/issue-350-django-moves-to-an-annual-release-cycle/

#Python #Django #DjangoNews

Just 10 days left until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/
#Django #Python

Have something you'd love to discuss at DjangoCon US? 📌

We're introducing Open Spaces, participant-driven sessions where you choose the topic and start the conversation.

No talk or presentation required. Bring an idea and see who joins!

📖 Learn more: https://2026.djangocon.us/news/open-spaces/

#Django #Python

Thank you to Caktus Group for sponsoring DjangoCon US 2026! 🎉

Your continued support of Django and the open source community helps bring developers together to learn, collaborate, and connect.

#Django #Python

“When I need to run multiple subprocesses within the same Python script, I often find myself passing the same keyword arguments over and over to the run function.”

Read more 👉 https://pym.dev/running-subprocesses-in-python/

#Python

And here are my bike riding numbers from 2025. I started having back/leg/nerve pain at the end of November. It will always bother me that I didn't get 2,000 miles in 2025.

(August is when I started riding an ebike and commuting to work and riding a lot, lot, lot more!)

#bikeTooter #python

Alt...

Graph with bike ride stats from 2025.

Alt...

Graph with bike ride stats from 2025.

Alt...

Graph with bike ride stats from 2025.

Alt...

Graph with bike ride stats from 2025.

My bike riding has been poor this year, due to spinal stenosis and then spinal surgery in June... but hopefully the numbers will go up for the rest of the year.

(And who knows? Maybe I'll update some of the Python code that generates these.)

#bikeTooter #python

Alt...

Graph with bike riding data.

Alt...

Graph with bike riding data.

Alt...

Graph with bike riding data.

Alt...

Graph with bike riding data.

sincewhen now includes features that are removed from Python and their removal version.

https://pym.dev/since or "uvx sincewhen"

If you catch features it doesn't handle that you think it should, let me know.

#Python

⚠️ si vous utilisez une str #Enum et que vous migrez de #Python 3.10 à 3.11+ attention à ce changement de comportement :

from enum import Enum
class Meetup(str, Enum):
PYTHON = 'python'
JS = 'js'
print(f'{Meetup.PYTHON}')
# 'python' pour 3.10
# 'Meetup.PYTHON' pour 3.11+

Une conséquence de https://peps.python.org/pep-0663/.

Pour revenir au comportement d'avant :

- utiliser Meetup.PYTHON.value
- implémenter la méthode __str__ :

class Meetup(str, Enum):
def __str__(self):
return self.value

Released a new version of my #python library for @signalapp https://pypi.org/project/replyfast/

⬆️ I updated django-cli-no-admin last night to support Django 6.1, Python 3.15, and Python's free-threaded versions.

Given the nature of the project, that means pyproject.toml updates 😬

I also tried out the trusting publisher thing, and it worked too. 🎉

https://github.com/jefftriplett/django-cli-no-admin

#Django #Python

À #Lyon le centre Léon Bérard a un poste de data engineer
https://www.centreleonberard.fr/travailler-au-centre-leon-berard/data-engineer-python-fh
#python #job

Python Tip #225 (of 365):

Avoid creating local variables that share a name with a global variable.

This is called SHADOWING, and it can make for confusing code.

Assigning to a variable inside a function normally makes a LOCAL variable:

>>> phrase = "Hi!"
>>> def set_phrase(name):
... phrase = f"Hello {name}"
>>> set_phrase("Trey")
>>> phrase
'Hi!'

The global phrase never changed. The function makes a LOCAL phrase that disappears when it returns.

🧵 (1/3)

#Python #DailyPythonTip

l is for learning.

Life of a software developer is one of continuous learning. There's always something new to learn and so many resources to learn from.

Today I shared a couple of book and podcasts recommendations and a long list of amazing people who write about Python on their websites.

https://hamatti.org/posts/l-is-for-learning-python-a-to-z/

#Python #Blaugust #Blaugust2026

I need to think about how I'm voting the Packaging Council election. So many great nominees, but a lot that I don't recognize because they're dealing with a different part of the ecosystem and not the core where I know the most people. I feel like I want the inaugural council to be core people who were already setting a good direction, but "who I know" also feels like the wrong way to vote. And there's still too many people who I know! 😅 https://www.python.org/nominations/elections/2026-python-packaging-council/nominees/ #Python #PyPI

Just 11 days left until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/
#Django #Python

A big thank you to Two Rock Software for supporting DjangoCon US 2026! 🎉

Your sponsorship helps bring together the global Django community for a week of talks, collaboration, and open source contributions.

We appreciate your support!
#Django #Python

We're also excited to announce the nominees for the inaugural Python Packaging Council 🤩 make sure to check out everyone's nomination statements to learn more about this years candidates! (And make sure to affirm your intention to vote by August 25th, 2 PM UTC!) #python https://pyfound.blogspot.com/2026/08/announcing-packaging-council-election.html

“It's actually possible to use isinstance and practice duck typing at the same time!”

Read more 👉 https://pym.dev/goose-typing/

#Python

We're also excited to announce the nominees for the inaugural Python Packaging Council 🤩 make sure to check out everyone's nomination statements to learn more about this years candidates! (And make sure to affirm your intention to vote by August 25th, 2 PM UTC!) #python https://pyfound.blogspot.com/2026/08/announcing-packaging-council-election.html

We're excited to announce the nominees for the 2026 PSF Board Election 🤩 make sure to check out everyone's nomination statements to learn more about this years candidates! (And make sure to affirm your intention to vote by August 25th, 2 PM UTC!) #python
https://pyfound.blogspot.com/2026/08/announcing-psf-board-candidates-for-2026.html

Python Tip #224 (of 365):

Constants that are specific to a class often belong ON that class.

class Circle:
max_radius = 100
def __init__(self, radius):
if radius > self.max_radius:
raise ValueError(f"Radius can't exceed {self.max_radius}")
self.radius = radius

But, why make max_radius a class attribute instead of a module-level MAX_RADIUS constant...?

🧵 (1/3)

#Python #DailyPythonTip

I decided to play with a silly idea: reorganizing #Python's junk drawer module (I say "junk drawer" affectionately here).

https://treyhunner.com/2026/08/reorganizing-pythons-sys-module/

Just 12 days left until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/
#Django #Python

📦 New package day! This time a Rusty rewrite of the emoji package: 3.5x faster for conversion, 70 times faster for deconversion, and using about 40% less memory.

https://adamj.eu/tech/2026/08/12/python-introducing-emojet/

#Python #Rust

it's that time again! upgrade your #python on macOS with `mopup`:

Alt...

a terminal running `pipx run --python python3.14 mopup` and upgrading from 3.14.6 to 3.14.7

@diazona @stylus Here's the recent big one https://blog.pypi.org/posts/2026-07-22-ui-updates/
#Python #PyPI

“But self-concatenation doesn't copy anything, so don't try to use it to make lists of mutable values like lists-of-lists.”

Read more 👉 https://pym.dev/self-concatenation/

#Python

RE: https://fosstodon.org/@ThePSF/117044410884871074

la communauté Python lance un sondage sur les pratiques d'utilisation et l'outillage autour du typage des valeurs : https://www.surveymonkey.com/r/python_typing

#Python #écosystème #typing #survey

Python Rennes boosted

Python Software Foundation » 🌐 2026-08-05
@ThePSF@fosstodon.org

The 2026 Python Type System & Tooling Survey is live 🐍📝❓ No typing experience needed—your perspective as a #Python dev matters most. Take a couple minutes to help improve Python typing for all!

https://www.surveymonkey.com/r/python_typing

This survey was developed with support from the Pyrefly team at Meta, the PyCharm team at JetBrains, the Python team at Microsoft, and the typing community on discourse.python.org.

xy est une bibliothèque permettant de simplement réaliser des graphiques interactifs 2D pour le web ou les notebooks. Elles supporte l'affichage de nombreux points grace à son cœur écrit en rust qui détermine ce qui a besoin d'etre affiché : https://github.com/reflex-dev/xy

#Python #outil #dataviz #rust #notebook

🟣 Nouveau journal de bord sur le blog !

➡️ https://blog.flozz.fr/2026/08/12/journal-de-bord-6-carnet-de-dev-sur-rst2gemtext-mise-a-jour-des-articles-et-reflexions-sur-la-langue-de-publication/

Aujourd'hui je vais vous parler un peu d'une amélioration que j'ai développé pour ma lib rst2gemtext suite à un besoin de @Dryusdan, d'un petit changement que j'ai apporté au blog, et d'une réflexion que j'ai eu sur la langue dans laquelle je publie suite à la lecture d'un article de @Edent

Bonne lecture ! 😁

#development #python #language #blog

Python Tip #223 (of 365):

Consider copying mutable arguments in your class initializers.

What happens if two objects are given the SAME list?

>>> initial_tasks = ['Watch screencast', 'Brush teeth']
>>> mon = TodoList(initial_tasks)
>>> tue = TodoList(initial_tasks)

It depends...

🧵 (1/4)

#Python #DailyPythonTip

Our last sprint office hour kicks off in an hour. Join us to get help configuring your machine. We'll be on the `welcome` Django Discord channel at chat.djangoproject.com

#Django #Python

A sincere thank you to JBS Solutions for sponsoring DjangoCon US 2026! 🎉

Your support helps make DjangoCon a place where developers, maintainers, and newcomers can come together to learn and collaborate.

We're grateful to have you with us!

#Django #Python

“When you need to launch a subprocess from within Python, I recommend using the run function from Python's subprocess module.”

Read more 👉 https://pym.dev/running-subprocesses-in-python/

#Python

«HTML over WebSockets: real-time SPAs with barely any JavaScript»

Building a SPA usually means a JS framework, a JSON API, and two codebases forced to agree on a contract; there is another way that skips all three, and it is not new.

https://en.andros.dev/blog/ef4968f5/html-over-websockets-real-time-spas-with-barely-any-javascript/

#Web #JavaScript #Python #Django #WebSockets #DjangoLiveView

Python Tip #222 (of 365):

Be careful with mutable default values in function definitions.

This class has a bug:

class TodoList:
def __init__(self, tasks=[]):
self.tasks = tasks

def add_task(self, task):
self.tasks.append(task)

Every TodoList object made without arguments shares the SAME list:

>>> mon = TodoList()
>>> tue = TodoList()
>>> mon.add_task("Work on Python exercise")
>>> tue.tasks
['Work on Python exercise']

🧵 (1/3)

#Python #DailyPythonTip

“Python's f-strings are great, but if you just need to smoosh a few values together with spaces between them, consider passing separate arguments to print.”

Read more 👉 https://pym.dev/print-features/

#Python

Thinking about giving a Lightning Talk at DjangoCon US 2026?

You’ve got five minutes to share an idea, project, lesson, story, or something you’ve learned and you don’t need to be an experienced speaker!

2026.djangocon.us/news/lightning-talks/

#Django #Python

Who would expect that my tiny contribution would be merged into Python 🐍 🎉 Be patient folks, there is no rush 🧘 #Python

https://github.com/python/cpython/pull/103625

Last year @yossarian wrote a brief post on the surprising complexity of the #Python "splitlines()" method. As a busy Unicode pedant, it took me a while to write up something explaining *why* it's complex, but here it finally is:

https://www.b-list.org/weblog/2026/aug/10/newlines/

Just 2 weeks left until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/
#Django #Python

Django moves to an annual release cycle

https://lwn.net/Articles/1088059/

#LWN #Linux #Python

Need more information on running for the inaugural Python Packaging Council? Check out our blog post: https://pyfound.blogspot.com/2026/07/get-ready-python-packaging-council.html

#Python

Need more information on running for the PSF Board? Check out our blog post: https://pyfound.blogspot.com/2026/07/get-ready-psf-board-nominations-opening.html

#Python

You have a little more than 24 hours left to submit a PSF Board or Python Packaging Council nomination for yourself or someone else 🩵🐍💛 Submit your nominations by tomorrow, Tuesday, August 11th, 2:00 pm UTC! #Python
https://www.python.org/nominations/elections/

Python Tip #221 (of 365):

Implement appropriate dunder methods.

Dunder methods are a contract between your class and the Python interpreter.

• __add__ & __radd__ power +
• __eq__ powers ==
• __len__ powers len()

Dunder methods are what third-party library authors use to make their objects feel like NATIVE Python objects.

Django QuerySet objects support indexing, iteration, len(...), and truthiness.

And Pandas DataFrames support a whole BUNCH of syntax.

🧵 (1/2)

#Python #DailyPythonTip

“In addition to os.name and sys.platform, there's an even higher level approach to find the platform that your code is running on, with the platform module.”

Read more 👉 https://pym.dev/operating-system-checks/

#Python

h is for htmx

A short teaser for htmx for those who don't yet know it exists. I plan to write more in-depth posts about it when I'm not in a daily post grind like with Blaugust but wanted to give a shoutout to it anyway.

For the past couple of years, all my new Django projects are built with htmx and it's one of my favourite tools in my toolbox these days.

https://hamatti.org/posts/h-is-for-htmx-python-a-to-z/

#Python #Blaugust #Blaugust2026

Python Tip #220 (of 365):

Trying quack like a duck? Seek help.

When implementing a common Python protocol (a sequence, a mapping, etc.), inherit from the matching abstract base class (ABC):

from collections.abc import MutableSequence

class MyCustomList(MutableSequence):
...

Benefits:

1. isinstance & issubclass checks work well (i.e. isinstance(x, Sequence))

2. Python will complain LOUDLY if you forget to implement a required method for the protocol

🧵 (1/3)

#Python #DailyPythonTip

✍️ I just released a new version of my little Python profiler, tprof, with less overhead for more accurate results.

https://adamj.eu/tech/2026/08/08/python-tprof-performance/

#Python

“As you write your code, pause and ask: “what should stand out here at a glance?””

Read more 👉 https://pym.dev/embrace-whitespace/

#Python

We’re thrilled to welcome pganalyze as a sponsor of Django Girls Chicago 2026! 🎉

Thank you, pganalyze, for supporting our mission to make tech more accessible and helping fund this free, hands-on Django workshop for women in Chicago.

💚 #DjangoGirls #Django #Python #OpenSource

19 days until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/
#Django #Python

RE: https://mastodon.social/@djangonews/117044723592407007

New Django just dropped! 🙌🏻 🚀

I’m happy to see an implementation of one of my accessibility feature requests in there as well: `django.db.models.fields.BLANK_CHOICE_LABEL`.

I don’t have the spoons to explain it right now, but the backstory is in the ticket.

#Python #Django

Paolo Melchiorre boosted

Django News » 🤖 🌐 2026-08-05
@djangonews@mastodon.social

Django 6.1 released https://www.djangoproject.com/weblog/2026/aug/05/django-61-released/

We're grateful to Six Feet Up for supporting DjangoCon US 2026! 🎉

Their commitment to the Python and Django ecosystem helps make this conference possible and supports a welcoming space for learning, collaboration, and open source.

#Django #Python #OpenSource #TechCommunity

Thoughts? https://github.com/django/new-features/issues/199

#Django #python #openSource

17 days until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/
#Django #Python

New article on goose typing in Python (yes, that's actually a thing).

You can duck typing WHILE type checking.

https://pym.dev/goose-typing

#Python

Python Tip #219 (of 365):

Validate your ducks with goose typing.

You can use isinstance() WHILE duck typing. This is called goose typing (coined by Alex Martelli).

>>> from collections‍.abc import Iterable
>>> isinstance([1, 2, 3], Iterable)
True

Point doesn't inherit from Iterable:

class Point:
def __init__(self, x, y): self.x, self.y = x, y
def __iter__(self): yield from (self.x, self.y)

And yet...

>>> isinstance(Point(1, 2), Iterable)
True

🧵 (1/3)

#Python #DailyPythonTip

🎨 I’m really enjoying the redesigned PyPI project pages. Thanks to Nicole Harris and team for making these improvements!

Blog post:

https://blog.pypi.org/posts/2026-07-22-ui-updates/

#Python

Alt...

Django’s project page on PyPI, showcasing the new design.

We’re thrilled to welcome REVSYS as a sponsor of Django Girls Chicago 2026! 🎉

Thank you, REVSYS, for supporting our mission to make tech more accessible and helping fund this free, hands-on Django workshop for women in Chicago.

💚 #DjangoGirls #Django #Python

@mgorny The good news is that was merged in 2024 but never actually released, so this change only affects those using unreleased source directly? And it's been archived on PyPI, so perhaps find a replacement.
#Python #flit

Today in things that couldn't have aged well:

"Unpin flit-core dependency" 2 years ago without actually updating the metadata to use the newer pyproject.toml format.

https://github.com/sethmlarson/socksio/commit/b326406915fd98a8185c1c160165c5b8963b30c1

#Python #flit

Python Tip #218 (of 365):

Don't needlessly convert between data types.

Looping over a file once? There's no reason to convert it to a list first:

for line in my_file:
print(line, end="")

Another example: if you're looping over a set, there's no reason to convert it to a list either:

>>> colors = {'red', 'blue', 'yellow'}
>>> for color in colors:
... print(color)
...
red
yellow
blue

"for" loops don't need a list. They accept ANY iterable.

🧵 (1/2)

#Python #DailyPythonTip

🆙 Updated my post on unittest base test cases with a new preferred technique: using a plain class as a container.

https://adamj.eu/tech/2025/05/30/python-unittest-common-tests/

#Python #unittest

Python 3.15.0 release candidate 1 is out!

https://www.python.org/downloads/release/python-3150rc1/

Test your code against it and let the core devs know if you find bugs!

If you have uv, getting it is easy:

uv self update
uv python install

That even works if you already have an alpha or beta version installed (it'll upgrade it for you).

#Python

RE: https://fosstodon.org/@ThePSF/117044410884871074

For #Python devs who like to fill out surveys... ✅

Python Rennes boosted

Python Software Foundation » 🌐 2026-08-05
@ThePSF@fosstodon.org

The 2026 Python Type System & Tooling Survey is live 🐍📝❓ No typing experience needed—your perspective as a #Python dev matters most. Take a couple minutes to help improve Python typing for all!

https://www.surveymonkey.com/r/python_typing

This survey was developed with support from the Pyrefly team at Meta, the PyCharm team at JetBrains, the Python team at Microsoft, and the typing community on discourse.python.org.

The 2026 Python Type System & Tooling Survey is live 🐍📝❓ No typing experience needed—your perspective as a #Python dev matters most. Take a couple minutes to help improve Python typing for all!

https://www.surveymonkey.com/r/python_typing

This survey was developed with support from the Pyrefly team at Meta, the PyCharm team at JetBrains, the Python team at Microsoft, and the typing community on discourse.python.org.

Python Tip #217 (of 365):

Think in terms of the minimum viable duck.

In other words: "what's the least this object needs to do to work in this context?"

For example, csv.reader is usually given a file object... but it accepts ANY iterable of delimited lines:

>>> import csv
>>> rows = ['a,b,c', '1,2,3']
>>> list(csv.reader(rows))
[['a', 'b', 'c'], ['1', '2', '3']]

🧵 (1/4)

#Python #DailyPythonTip

🐍🐍🚀🚀 Out now: Python 3.14.7 and 3.13.15!

https://discuss.python.org/t/python-3-14-7-and-3-13-15-are-now-available/108420

#Python #Python314 #Python313 #release

Peter's PEP 797 – Shared Object Proxies was also the first PEP rejected for 3.16 as well! ✌️
https://peps.python.org/pep-0797/
#Python #Python316 #PEP797

Forget Python 3.15 (don't forget it, please test!), the first PEP for Python 3.16 has been accepted:

PEP 828 – Supporting ‘yield from’ in asynchronous generators, by Peter Bierma

https://peps.python.org/pep-0828/
#Python #Python316 #PEP828

🎉 Karen Tracey is a DjangoCon US 2026 keynote speaker!

A longtime Django core developer, Karen will present "Django 6: The Most Exciting Release Ever?" and explore the exciting new features coming in Django 6.

Read more: https://2026.djangocon.us/news/keynote-karen-tracey/

#Django #Python #OpenSource

Me after laboriously backporting #Python 3.15 fixes to #Django 6.0.x in #Gentoo: "oh, nice, the patchset applies cleanly to 5.2.x as well."

And today, I have to laboriously backport another patch to 6.0.x, and it turns out the backport doesn't apply cleanly to 5.2.x, so I have to laboriously backport it there as well.

I honestly *hate* Django Python version support policy. Shifting all the burden downstream.

TIL that #Python's `pathlib.Path` is expensive compared to plain `str`ings. I tested by `.walk()`ing a 2 level directory structure with 40M files and it took 9m. When I tried with `os.walk()`, it only took 1m. Of course, I tested this several times to avoid cold vs hot cache.

Tritium#python@libera.chat tracked it down to the constructor to `pathlib.Path`, which does a lot of things than being just a `str`:

https://github.com/python/cpython/blob/83b33546b9c68578dda7733d1ef8816473981b7e/Lib/pathlib/__init__.py#L138

What's the weirdest or nerdiest or most niche thing you use #python for? I love hearing people's stories and I love sharing how wide the set of use cases is.

Python Tip #216 (of 365):

In Python, we often care more about the behavior of an object than its type.

We say "if it looks like a duck and quacks like a duck, it's a duck".

When we check for duckness, we don't test DNA, we observe behavior.

Instead of asking "what TYPE can I use here?", ask "does my object have the BEHAVIOR that's expected here?"

🧵 (1/3)

#Python #DailyPythonTip

Some things sooner than others:

3.15 RC 1 is out, but we'll wait until tomorrow to do 3.13 and 3.14 so we can include this fix for macOS that will become a problem in mid-September:

https://github.com/python/cpython/issues/153711

3.15 will have another release (1st Sept) before then, but 3.13 and 3.14's next one is in October, so better wait for the fix.

#Python #Python315 #Python314 #Python313 #release

🐍🚀 Out now: Python 3.15 release candidate 1!

Please test and report bugs!

We strongly encourage maintainers of to prepare their projects for 3.15 during this phase, and publish Python 3.15 wheels on PyPI to be ready for the final release of 3.15.0, and to help other projects do their own testing.

Any binary wheels built against Python 3.15.0 release candidates will work with future versions of Python 3.15.

https://discuss.python.org/t/python-3-15-0-release-candidate-1-is-here/108395?u=hugovk

#Python #Python315 #release

The nomination period for the PSF Board and Python Packaging Council elections is open now, closing next Tuesday, August 11th, 2:00 pm UTC 📝🐍 Don't wait until the last minute, though! Nominate yourself or someone else today: https://www.python.org/nominations/elections/ #Python

🔒🐍 Coming soon, Python 3.15 release candidate 1! The 3.15 branch is now locked until 3.15.0 final in October.
https://discuss.python.org/t/the-3-15-branch-is-locked-for-rc1/108389

Also coming soon: Python 3.13.15 and 3.14.7.
https://hugovk.dev/next-release/
#Python #Python315 #Python314 #Python314 #release

Jag har också en kurs som hjälper Scratch-generationen att ta steget över till #Python genom den välbekanta miljön. Kursen innehåller även grundläggande hårdvaruprogrammering för att göra inlärningen rolig. Kurserna startar i slutet av augusti. Dela gärna så att fler föräldrar får se detta. #Stockholm #Solna #Sverige

https://enkelkod.se/beginner.html

Python Tip #215 (of 365):

Know what it means to be a "sequence" in Python.

Lists, strings, and tuples are all sequences:

>>> fruits = ["apple", "lemon", "pear"]
>>> coordinates = (1, 8, 2)
>>> greeting = "Hi y'all!"

A sequence is an ordered collection that:

1. Has a length
2. Can be indexed from "0" up to one less than its length
3. Can be looped over

>>> len(fruits)
3
>>> fruits[0]
'apple'
>>> for c in coordinates: print(c)
1
8
2

🧵 (1/3)

#Python #DailyPythonTip

“The defaultdict is very handy, but I find that it's rarely useful enough that I feel the need to use it.”

Read more 👉 https://pym.dev/default-dictionary-values/

#Python

✍️ New post demonstrating the runtime advantage of my package time-machine over its inspiration, freezegun.

https://adamj.eu/tech/2026/08/03/python-time-machine-o1-freezegun-on/

#Python

B is for batteries included

Python comes with batteries included — meaning it has a fantastic, powerful standard library. Two years ago, I spent an entire August writing about my favourite parts of it.

https://hamatti.org/posts/b-is-for-batteries-included-python-a-to-z/

#Python #Blaugust #Blaugust2026 #Blogging

📣 New to DjangoCon US Contribution Sprints?

Our latest blog covers everything you need to get started from understanding sprints to setting up your development environment before you arrive.

https://2026.djangocon.us/news/sprints-prep/

#Django #Python

21 days until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/
#Django #Python

A is for assert

assert is handy built-in in Python that can be used as a failsafe for scripts and for writing tests with pytest.

https://hamatti.org/posts/a-is-for-assert-python-a-to-z/

#Python #Blaugust #Blaugust2026

✍️ time-machine 3.3.0 is out, with Python 3.15 support, performance improvements, subinterpreter support, and various bug fixes.

Check it out, and if you’re using freezegun, try the updated Migration CLI to convert and speed up your tests.

https://adamj.eu/tech/2026/07/31/python-time-machine-3.3.0/

#Python

RE: https://fosstodon.org/@adamchainz/117017044548701755

"Wheels are also now built with frame pointers enabled, per the PEP 831 change in Python 3.15. Frame pointers are a debugging feature for low-level languages like C, which allow debuggers to reconstruct the call stack of a program. Python has decided to enable frame pointers by default and encourage the ecosystem to do so as well, to make debugging easier for us all, so time-machine is joining the party."

Enabled by default for 3.15, do this for older versions:

https://github.com/adamchainz/time-machine/pull/627

#Python

pvergain (framapiaf) boosted

Adam Johnson » 🌐 2026-07-31
@adamchainz@fosstodon.org

✍️ time-machine 3.3.0 is out, with Python 3.15 support, performance improvements, subinterpreter support, and various bug fixes.

Check it out, and if you’re using freezegun, try the updated Migration CLI to convert and speed up your tests.

https://adamj.eu/tech/2026/07/31/python-time-machine-3.3.0/

#Python

Python Tip #214 (of 365):

Use truthiness for integers with caution.

I DO rely on truthiness checks for integers, but not always. I would recommend only using them when they seem to improve readability.

I find this:
if hours: ...

More readable than this:
if hours > 0: ...

But I find this:
if number % 2 != 0: ...

More readable than this:
if number % 2: ...

🧵 (1/2)

#Python #DailyPythonTip

The German translation of the Python docs is being restarted. Want to help out? Get in touch with Swen!

https://discuss.python.org/t/starting-work-on-the-german-documentation-translation-python-docs-de/108369

#Python #docs #translation #German

What does it take to help lead Django?

DSF President Thibaud Colas shares insights on open-source leadership, community, sustainability, and contributing to Django in this DjangoCon US Insights & Perspectives interview.

🎥 https://youtu.be/6rTd8IRwNWY?si=V15prrLJpK1z3ufk

#Django #Python

We're excited to welcome Caktus Group as a sponsor of Django Girls Chicago 2026! 🎉
Their support helps make this free Django workshop possible and empowers more women in tech. Thank you! 💚

#DjangoGirls #Django #Python #OpenSource #WomenInTech #DjangoCon

🚀 I just released rst2gemtext v0.7.0!

It is a #Python library and a CLI tool to convert reStructuredText to Gemtext (Gemini markup format).

➡️ https://github.com/flozz/rst2gemtext/releases/tag/v0.7.0

This version adds support for the Docutils' csv-table and list-table directives. Thank you @Dryusdan to make me know about them! 😁

📰 New GitHub, PyPI Policies Hope to Boost Supply Chain Security

"GitHub and the Python Package Index (PyPI) have introduced new policies meant to boost supply chain security," reports SecurityWeek, "by preventing the fast propagation of poisoned package version...

📰 Source: Slashdot
🔗 Link: https://developers.slashdot.org/story/26/08/01/0511237/new-github-pypi-policies-hope-to-boost-supply-chain-security?utm_source=rss1.0mainlinkanon&utm_medium=feed

#Python #AI #ArtificialIntelligence

Oh look, a new version of Delorean, the datetime enhancement library, has been released after just eight years:
https://github.com/myusuf3/delorean/issues/104 🚀🕒
#Python

Python Tip #213 (of 365):

Replace "or"-chained equality comparisons with a containment check.

Instead of this:

is_vowel = c == "a" or c == "e" or c == "i" or c == "o" or c == "u"

You can write this:

is_vowel = c in ("a", "e", "i", "o", "u")

In fact, you could even give that tuple a name:

vowels = ("a", "e", "i", "o", "u")
is_vowel = c in vowels

🧵 (1/2)

#Python #DailyPythonTip

PegaProx for #Proxmox VE and #XCPng clusters made a huge step and is finally out of beta!

The first stable release also comes around with companies providing enterprise support. If you need SLA-backed help running PegaProx in production (or training sessions) you can now find a support partner at:

Enterprise Support & Sponsors: https://pegaprox.com/sponsors.html
Release: https://github.com/PegaProx/project-pegaprox/releases/tag/v1.0
Website: https://pegaprox.com

#homelab #virtualization #opensource #community #python #virtualization #enterprise #business #support

Alt...

PegaProx v1.0 Release

We're excited to welcome Prairie Postgres as a sponsor of Django Girls Chicago 2026! 🎉

Their support helps make this free, hands-on Django workshop possible, empowering more women to learn web development in a welcoming community.

Thank you for investing in the next generation of Django developers! 💚
#DjangoGirls #Django #Python

“In order to use a for loop, you must have an iterable to loop over.”

Read more 👉 https://pym.dev/while-loops/

#Python

"Or we could use the zip function with the strict=True argument to compare line-by-line in a for loop"

Read more 👉 https://trey.io/0frqkp

#Python

✍️ time-machine 3.3.0 is out, with Python 3.15 support, performance improvements, subinterpreter support, and various bug fixes.

Check it out, and if you’re using freezegun, try the updated Migration CLI to convert and speed up your tests.

https://adamj.eu/tech/2026/07/31/python-time-machine-3.3.0/

#Python

Python Tip #212 (of 365):

Use any() and all() to check a condition across every item in an iterable

This:

any_negative = False
for n in numbers:
if n < 0:
any_negative = True
break

Can be replaced with:

any_negative = any(n < 0 for n in numbers)

And this:

all_good = True
for item in iterable:
if not condition(item):
all_good = False
break

Can be replaced with:

all_good = all(condition(item) for item in iterable)

🧵 (1/2)

#Python #DailyPythonTip

Alt...

all_good = True for item in iterable: if not condition(item): all_good = False break Can be rewritten as: all_good = all( condition(item) for item in iterable ) Also... any_good = False for item in iterable: if condition(item): any_good = True break Can be rewritten as: any_good = any( condition(item) for item in iterable )

Did you know that map()/filter() were added to Python 6 years before comprehensions?

Also range() was added 9 years before zip() which was added 3 years before enumerate().

And strings methods weren't methods for the first 9 years... they lived in the string module!

For years I've wanted an easier way to look up facts like those.

Now I have a way! https://pym.dev/since

It's also available as a CLI tool via PyPI

uvx sincewhen 'sum()'

#Python #programming

🐍🚀 Out now: Tablib 3.10.0

The format-agnostic tabular dataset library

🔒 Security fix to escape dataset title in HTML serialisation
🦥 Support for Python 3.15 with lazy imports
💧 Drop support for EOL Python 3.9
🩹 And a bunch of fixes

https://github.com/jazzband/tablib/releases/tag/v3.10.0
#Python #Tablib #release #security #Python315

Thinking about nominating yourself or someone else for the upcoming PSF Board or Python Packaging Council elections? Now's your chance: take a couple minutes this weekend to submit a nomination! #Python
https://www.python.org/nominations/elections/

📰 Issue 348: One month until DjangoCon US

https://django-news.com/archive/issue-348-one-month-until-djangocon-us/

#Python #Django #DjangoNews

Using super()[key] won't work because the super class doesn't implement a __getitem__ method, but looking up the __getitem__ attribute on a super() object does work (assuming a parent class implements that method).

Read more 👉 https://trey.io/p0h32w

#Python

Great, now the AI is throwing malware into python libraries, too.

Anthropic's Claude breached 3 orgs, uploaded PyPI malware during tests

https://www.bleepingcomputer.com/news/security/anthropics-claude-breached-3-orgs-uploaded-pypi-malware-during-tests/

#python #cybersecurity #aipocalypse

Python Tip #211 (of 365):

Consider how your Boolean expressions read in English

For example, you could write "10 > x" or you could write "x < 10".

They check the same thing, but I find the latter one more readable.

Steve McConnell's Code Complete recommends writing numeric tests in "number-line order": order the values left to right, from smallest to largest.

Follow that rule and you'll always use < and <=, never > and >=.

I don't follow that advice...

🧵 (1/3)

#Python #DailyPythonTip

What's New in Python 3.15:

csv

* csv.Sniffer.sniff() delimiter detection is now up to 1.6x faster. (Contributed by Maurycy Pawłowski-Wieroński.)

https://docs.python.org/3.15/whatsnew/3.15.html#csv

#Python #Python315 #WhatsNew

Zero days since #pip added a random new functionality that depends on pip being entirely standalone and breaks when you unbundle the dependencies. And I'm unable to figure out why a bunch of tests are still failing.

EDIT: I'd appreciate some help with that. My WIP is at https://codeberg.org/gentoo/gentoo/pulls/1578.

#Gentoo #Python

Finding an item in a sorted list of 10 million things:

✅ Binary search: 23 comparisons
❌ The `in` operator: 2+ million comparisons

Python's bisect module does binary search for you. New article, with recipes for closest-match and range lookups:

https://pym.dev/binary-search/

#Python

JOB : nous recrutons un développeur / une développeuse backend.

Découvrez le poste et les compétences requises, ainsi que les avantages à travailler chez Dalibo : télétravail, coopérative, grille salariale transparente… => https://blog.dalibo.com/2026/07/30/dev_backend.html

#emploi #jerecrute
#développeur #backend
#linux #python #golang #rust
#fullremote
#bienDansMaScop

Alt...

visuel promo du recrutement chez Dalibo

The Python Software Foundation is hiring a Security Developer to join @miketheman and I on triaging vulnerability reports and mitigating malware published to PyPI.

If you've got experience with Python, security, and collaborating with open source projects then we'd love to hear from you:

https://jobs.pyfound.org/apply/ei03ut60y4/Security-Developer?referrer=20260730140256DSN5BCNCWZA5MXAO

#python #security #pypi #supplychain #vulnerability

Lots of new stuff in pip 26.2:

🍊 Support for Python 3.15
🍊 Selecting only dependencies
🍊 Experimental: venv based build isolation
🍊 Faster repeated resolves by caching index simple responses
🍊 No more progress bar spam in CI
🍊 Deprecation to remove the legacy dependency resolver (--use-deprecated=legacy-resolver)

See @ichard26's post for more!

https://sichard.ca/blog/2026/07/whats-new-in-pip-26.2/
#Python #pip

For checking whether any items match a more complex condition, we could use the built-in any() or all functions

Read more 👉 https://trey.io/xtql6h

#Python

Python Tip #210 (of 365):

Instead of an "if" under an "else", consider using "elif".

You likely know about Python's "elif" statement, but you might occasionally underuse it.

If you find yourself writing an "if" statement just under an "else", ask "should I use an "elif" here instead?"

🧵 (1/3)

#Python #DailyPythonTip

Thinking about your first DjangoCon US?

Jake Atwell shares his experience as a first-time attendee, why the community stood out, and why volunteering is a great way to get involved.

🎥 https://www.youtube.com/watch?v=GgTVi0UsvUg
#Django #Python

xy is very fast and customizable charting library for Python https://lobste.rs/s/vnfk4x #python
https://github.com/reflex-dev/xy

New Python Morsels article: Binary search with the bisect module 🔍

You don't need to implement binary search yourself. Python's bisect module already did it for you.

In this article:

🎯 An interactive guessing game that demonstrates binary search
⚡ Why 10 million items take just 23 comparisons
🤔 Why a set or dict can't always replace binary search
🧰 Recipes: closest match, first/last match, all values in a range

https://pym.dev/binary-search/

#Python

What's New in Python 3.15:

contextlib

* Added support for arbitrary descriptors __enter__(), __exit__(), __aenter__(), and __aexit__() in ExitStack and contextlib.AsyncExitStack, for consistency with the `with` and `async with` statements.

* ContextDecorator and AsyncContextDecorator now detect generator functions, coroutine functions, and asynchronous generator functions and keep the context manager open across iteration or await.

https://docs.python.org/3.15/whatsnew/3.15.html#contextlib

#Python #Python315 #WhatsNew

26 days until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/
#Django #Python

I've recently been updating many of my mini #Python helper apps and I made a page for them: https://www.pythonmorsels.com/tools/

Note that the strptime & format tools now link to CLI versions (strptime-cli & fguess) and the pastebin & REPL tool recently got a big rework.

Have thoughts on one of these tools? Or an idea for another one? I'd love to hear either!

Python Tip #209 (of 365):

Remember Python's "inline ifs"

Python doesn't have traditional ternary operators (cond ? one : two) but instead has an inline "if" expression (technically a "conditional expression") for the same purpose.

Instead of:

if amount == 1:
noun = "item"
else:
noun = "items"

We can write

noun = "item" if amount == 1 else "items"

The condition is in the MIDDLE. The first value is the "true" case and the last is the "false" case.

🧵 (1/2)

#Python #DailyPythonTip

The conference hotel rate won't last forever!

Book your DjangoCon US hotel before August 3, 2026 to take advantage of the discounted conference rate.

🏨 https://2026.djangocon.us

#Django #Python #OpenSource

Usually a quick chore, but with the #ruff feature update, an unexpected ton of work…

#django #python #precommit

🪟🦾🥈 Windows on Arm (aka aarch64-pc-windows-msvc) has now been promoted to tier 2 of CPython platform support.

Tier 3 has no response SLA to failures. Tier 2 requires breaking changes to be fixed or reverted within 24 hours, and failures block a release.

Tier 3 requires at least one core team member signed up to support the platform. Tier 2 requires at least two, and we have three here.

https://peps.python.org/pep-0011/
#Python #CPython #PEP11 #WindowsOnArm #Windows

🎉 We're excited to announce Sarah Boyce as a keynote speaker!

As a Django Fellow, Sarah helps maintain Django and support its global community. Her keynote will explore code review, feedback, and building stronger open source communities.

https://2026.djangocon.us/news/keynote-sarah-boyce/

#Django #Python #OpenSource

Python Tip #208 (of 365):

Break up long boolean expressions

Have a long condition in your "if" statement?

You could:

1. Wrap it in parentheses to break it up over multiple lines
2. Use variables to give names to each sub-expression
3. Use functions to name sub-expressions

🧵 (1/4)

#Python #DailyPythonTip

What makes DjangoCon US special?

Yumiko Siewenie shares her first DjangoCon experience, why the community stood out, and how even puzzles became a way to meet new people.

🎥https://youtu.be/Z0Bv3-gOQLg?si=WsNn9c1J8eS1L2R7

#Django #Python

✍️ New post on a Python testing technique: inspecting interleaved calls across multiple mocks with attached mocks.

#Python

https://adamj.eu/tech/2026/07/27/python-mock-attach-mock/

“Sets are also great when you need fast containment checks.”

Read more 👉 https://pym.dev/practical-uses-of-sets/

#Python

Some #programminglanguages remain widely used for decades, while others fulfill an important role during their time before receding.

Our author Andrew Oram explores the stories of C, C++, C#, #Java, #JavaScript, #PHP, #Rust, #Perl, #COBOL, #FORTRAN, #BASIC and others. Dive into it 👇
https://lpi.org/xq3f

#LPI #programming #opensource #linux #unix #softwaredevelopment #coding #developers #sysadmins #python #softwareengineering

Please congratulate our newest PSF Fellow Members for Q2, 2026! Their continued contributions to the Python ecosystem are so very important to our community. #python
https://pyfound.blogspot.com/2026/07/announcing-python-software-foundation.html

https://wsvincent.com/deploying-web-apps-in-2026/ (Deploying Web Apps in 2026: My EuroPython 2026 Conference Talk by Will Vincent )

--<--
This is the text version of my EuroPython talk, Deploying Python Web Apps in 2026, which I recently presented in Krakow, Poland.

I will add the video version when it it is ready in a few weeks. The EuroPython team traditionally does an amazing job making the talks available shortly after the conference.
-->--

#Web #Python #Deployment

27 days until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/

#Django #Python

The PSF is hiring a Security Developer! Help triage vulnerabilities in CPython, fight malware/supply-chain attacks on PyPI, and build tools to keep the #Python ecosystem safe for millions of users 🐍🔒 This is a global, remote, 1 year term role, with the possibility of renewal. #Security

Apply today:
https://pythonsoftwarefoundation.applytojob.com/apply/ei03ut60y4/Security-Developer

«Modern email can be built from borrowed parts»

What if we designed the successor to email on top of HTTP, fixing 40 years of SMTP design flaws using only technologies that already exist?

https://en.andros.dev/blog/d7ed8b07/modern-email-can-be-built-from-borrowed-parts/

#Email #ActivityPub #OpenWeb #Python

I did not realise I had strong feelings on docstrings. I use them sparingly, and while they are a hack, at least they serve a good purpose.

I know people have opinions on the placement of line breaks and quotes, but I thought I was above these things. That this was Python programmers yearning for curly-brace level style wars.

I was mistaken.

I just encountered docstrings written in regular quotes rather than triple quotes and, no, apparently I DO have strong feelings on docstrings.

#python

Python Tip #207 (of 365):

Get fancy with your subprocess‍.run calls.

When launching a subprocess, consider passing the keyword arguments capture_output, text, and check to subprocess‍.run.

Passing capture_output=True will capture both stdout & stderr from the subprocess.

Passing text=True will decode the captured output into strings (instead of providing raw bytes).

Passing check=True will raise an exception if the subprocess exited with an error code.

🧵 (1/2)

#Python #DailyPythonTip

The new django-bolt==0.10.0a1 is the fastest python framework. I can confidently say it now because before it was near litestar level. 6x performance of FastAPI.
/db clearly wins. Pagination wins after `sync_to_thread`. So only db is close. Frameowrk level overhead bolt is way ahead.
#python #django #opensource
Code used https://github.com/huynguyengl99/python-api-frameworks-benchmark
On repo they still use 0.4.7 version.

28 days until DjangoCon US! 🎉

Chicago is calling. We can't wait to welcome the Django community for a week of talks, tutorials, sprints, and connection.

📅 https://2026.djangocon.us/

#Django #Python

Now we have pymanager for Windows, Python 3.16 drops the old MSI-based installer.

Here's Steve Dower's +389 -17,781 PR! 🧹

https://github.com/python/cpython/pull/153512

https://peps.python.org/pep-0773/
#Python #Python316 #pymanager #PEP773

Because someone in the #Python Discord was asking about structuring tests alongside their project code, I added a bit of test structure to my pkgsample explainer: https://github.com/nedbat/pkgsample

The next PyPy will be 8.0.0 and should add support for Python 3.12 and be the last to support 3.11, and require glibc 2.28 (AlmaLinux8, Amazon Linux 2023, Debian 10, Ubuntu 20.04).

https://pypy.org/posts/2026/07/moving-linux-builds-to-glibc228.html

#Python #PyPy

Python Tip #206 (of 365):

Know your combination and permutation tools in Python.

Python ships with tools for combinations, permutations, and random selections.

The itertools module includes various combinatorics-oriented utilities:

from itertools import combinations, combinations_with_replacement, permutations, product

This joins tuples of characters into a comma-separated string:

def join(groups):
return ", ".join("".join(g) for g in groups)

🧵 (1/5)

#Python #DailyPythonTip

✍️ New post on using unittest.mock to spy on function calls. 🕵️‍♂️

I recently learned how to use the wraps argument to track all calls to a target function for later assertions. Very useful for testing things like “is caching working?” without having to mock the function completely.

#Python

https://adamj.eu/tech/2026/07/25/python-spy-unittest-mock-wraps/

“So if you find this feature jarring enough that you'd like to never use it in your code, you can probably configure your linter to disallow it entirely.”

Read more 👉 https://pym.dev/implicit-string-concatenation/

#Python

✍️ Django’s release code words, up to the pending Django 6.1 “mélange”.