Python Tip #174 (of 365):

Python modules are cached.

The first time each Python process imports a module, it caches it in sys.modules.

The second time you import the same module, Python returns the cached module object without re-running the module code.

This means if you edit a file and then re-import it in the same REPL session, your changes won't appear.

Re-importing a module does not reload it.

The simplest fix: RESTART PYTHON.

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#Python #DailyPythonTip

Reminder: The PSF's Strategic Plan full draft is available and we want your feedback! Check out the full draft and tell us: Are these the right goals? Is anything missing?

The feedback window closes in a couple of days on June 25, 2026, AoE.

https://pyfound.blogspot.com/2026/06/psf-strategic-plan-2026-draft-open-for.html

#Python #PyPI

RE: https://fosstodon.org/@ThePSF/116800035337786641

Completely remediating this report was a massive coordinated team effort and would not be possible without paid security staffing at the PSF. Confirmed remediation in 48 hours from report with extensive follow-up auditing, hardening, and coordinating a third-party audit from Trail of Bits.

Thank you to Alpha-Omega for funding my time and OpenAI for funding the audit through "Patch the Planet".

Please see the write-up for details.

#opensource #oss #security #supplychain #python

Luc Sorel-Giffo boosted

Python Software Foundation » 🌐 2026-06-23
@ThePSF@fosstodon.org

The Python Security Response Team patched an authentication bypass in the python.org release management API in under 48 hours. No evidence of exploitation, all artifacts verified.

Check out the full writeup 👇
https://pyfound.blogspot.com/2026/06/mitigated-api-bypass-for-download-metadata-python-dot-org.html

#Python #Security #PSF

The Python Security Response Team patched an authentication bypass in the python.org release management API in under 48 hours. No evidence of exploitation, all artifacts verified.

Check out the full writeup 👇
https://pyfound.blogspot.com/2026/06/mitigated-api-bypass-for-download-metadata-python-dot-org.html

#Python #Security #PSF

🐍🚀 Out now: Python 3.15 beta 3!

💤 Lazy imports!
🧊 frozendict builtin!
💂 sentinel builtin!
📉 Tachyon profiler!
🖼️ Frame pointers everywhere!
🛅 Unpacking in comprehensions!
🗣️ UTF-8 as the default encoding!
🆕 Package startup config files!
⌨️ TypedDict and TypeForm!
🐎 Faster JIT!
🎨 More colour!
🚌 & more!

Library maintainer? We *strongly encourage* you to add 3.15 to your CI and test during the beta. And send us those bugs reports!

https://discuss.python.org/t/python-3-15-0-beta-3-is-here/107866?u=hugovk
#Python #Python315 #CPython #release

The supplemental June edition of the PSF Board Office Hour is about to begin 🐍 🗒️ 1 PM UTC. We welcome you to join us to share how we can help your community, express your perspectives, and we'd love to receive your questions and feedback about the ongoing strategic planning at the PSF! #python
https://pyfound.blogspot.com/2025/10/a-new-psf-board-another-year-of-psf.html

@cleder Thanks, have just created a PR to add a few more.

#precommit #python #r #markdown #codespell

So the next time you find yourself making a list of lists or flattening a list of lists, try out the comprehension approach.

Read more 👉 https://trey.io/aeo9fg

#Python

Python Tip #173 (of 365):

Use _ to see the previous REPL result.

Say you ran an expression in the REPL and only decided AFTER you ran it that you want to capture the result:

>>> 2**50
1125899906842624

This is what the REPL's magical _ variable is for.

The last result the REPL generated is stored in the _ variable.

So you can just point a different variable to that value:

>>> n = _
>>> n
1125899906842624

This week's tips are all about the Python REPL.

#Python #DailyPythonTip

Out now: linkotron 0.7!

CLI to format links in a shorter format.

🖇️ Format regular links
🔗 Format GHSA links -- thanks @stanfromireland!
🖇️ Add support for Python 3.15-3.16
🔗 Stop testing experimental 3.13t

Maybe one day I'll remember how to write reStructuredText links but now I don't need to:

❯ linkotron example.com --rst
Copied! `example.com <https://example.com>`__

https://github.com/hugovk/linkotron/releases/tag/0.7.0

#Python #release #linkotron #CLI #reStructuredText

Out now: PrettyTable 3.18!

Library to display tabular data in a visually appealing ASCII table format.

Lots of stuff here, including performance improvements, some thanks to improvements in wcwidth dependency.

Add support for:
Python 3.16
reStructuredText tables
multiline headers
captions in Markdown

And more!

https://github.com/prettytable/prettytable/releases/tag/3.18.0
#Python #release #PrettyTable

🐍🅰️ Out now, Python 3.15 alpha 6!

PEP 799: A high-frequency, low-overhead, statistical sampling profiler
PEP 798: Unpacking in comprehensions with * and **
PEP 686: Python now uses UTF-8 as the default encoding
PEP 782: A new PyBytesWriter C API to create a Python bytes object
PEP 728: TypedDict with typed extra items
The JIT compiler has been significantly upgraded with up to 7-8% speedup

🧊 Just two more alphas until the feature freeze! 🧊

https://discuss.python.org/t/python-3-15-0-alpha-6/106122
#Python #Python315 #release

#HIRING! Senior Engineer, #python based full stack but leaning to devops/infra. 70/30 would be my ideal split. Fully remote UK only, £63,000 non negotiable sadly, but ~20% pension on top. Closing date: WEDS NOON! So get in touch (thayer@team-prime.com) asap if this might be you.

Org: healthcare, data, ~30 person team. Zero AI currently in place, but some may be implemented very gently/ethically/thoughtfully over the next year, or not!

Would esp suit someone who prefers chill vs rocket ship.

Watch PSF PyPI Safety & Security Engineer @miketheman's talk from Open Source Summit NA 2026: Trusted Publishing uses OIDC to generate short-lived tokens from CI/CD. No passwords. No tokens to rotate. No secrets in repos.

https://www.youtube.com/watch?v=i0BWrWdZ3Wg

#Python #PyPI #OSSummit #Security

TIL about #python named escapes: "\N{FIGURE SPACE}" is equivalent to and more self-explanatory than "\u2007"

“Dataclasses allow us to create friendly classes while writing less boilerplate code.”

Read more 👉 https://pym.dev/friendly-classes/

#Python

Python Tip #172 (of 365):

Know your object introspection tools

When you're in an interactive Python environment remember that these 4 tools can be helpful for introspecting the state of your Python process:

1. type
2. help
3. dir
4. vars

type shows the class of an object (the terms "class" and "type" are synonyms in Python).

If you have a mystery object, type can tell you what it is:

>>> type(letter_counts)
<class 'collections.Counter'>

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#Python #DailyPythonTip

RE: https://mastodon.social/@coredispatch/116777745023446095

If you are interested in the beating hearts of the #Python community (the language core, the PSF, and other things), then reading @coredispatch is well worth your time, it is always informative!

Customize PDB with a ~/.pdbrc file.

You can make a ~/.pdbrc file to add your own commands to the Python debugger.

This ISN'T a Python file, so it's a bit tricky to create, but spending a few minutes making one is well worth it.

At startup, PDB runs commands from a ~/.pdbrc file.

The handiest thing to put there are custom PDB aliases.

🧵 (1/4)

#Python #DailyPythonTip

I was told about this blog site, a couple of weeks ago. There are interesting pages listed here

The subjects vary in the manner as seen in the first page (check the screencaps)

## What I really like about this place, is that it loads blazingly fast

I also love the fact that you can use browsers in your,
* bash
* csh
* ksh
* zsh
* sh
* fish
* without any bloat just like browsing should be, everywhere

https://rldane.space/junited-2026.html

Thank you @rl_dane

#Blog #site #fast #HTML #great #cool #sweet #nice #programming #Python

An #introduction perhaps?

I’m this middle-aged dad from Germany. I have a wonderful partner, 4 kids and a cat.

I care about society and technology. A retired #FOSS activist, these days I work at a globocorp doing IT stuff for trains 🚄

My interests include baking #bread, #fermenting stuff, paddling a whitewater #kayak, n00bing around with #Python, #RaspberryPi and #arduino, and oh so many books.

There’s never enough time, and I haven’t been bored in more than a decade.

Python Tip #170 (of 365):

Use b to set a breakpoint while you're in PDB

You can use the b command to set a breakpoint at a certain line of code:

(Pdb) b 4
Breakpoint 1 at script.py:4

But why...?

Why not just add another breakpoint() call?

Well, imagine you've entered PDB via post-mortem debugging (see tip 154 from yesterday).

You've realized once you're IN PDB that it would be useful to pause on a particular line.

The b command makes that easy!

🧵 (1/2)

#Python #DailyPythonTip

“You can make a self-documenting expression by putting an = sign at the end of an f-string's replacement field (the part between { and }).”

Read more 👉 https://pym.dev/debugging-with-f-strings/

#Python

Ce mardi 30 juin 2026 à 18h30, je présenterai le fonctionnement de Trognoncal, le moteur d'agenda culturel participatif que je développe depuis plus de trois ans pour propulser https://pommesdelune.fr

Ça se passera au bar Fermenté.e, et même si on ne rentrera pas trop dans la technique, je présenterai tout de même pas mal d'éléments du fonctionnement interne.

Tout ça est organisé par David Rigaudie / PyClermont, et il reste encore quelques places :

https://www.meetup.com/pyclermont/events/315067285/

Après 20h, on invite toutes les personnes intéressées par l'agenda à venir partager un moment de convivialité pour la fin de la deuxième saison de pommes de lune.

#python #django #ClermontFerrand #dev #culture

La communauté Python au Togo @pytogo_org lève des fonds pour offrir des bourses à 100 étudiant·e·s pour participer à la prochaine PyCon Togo.

J'ai été invité à parler de ma relation à #Python lors d'un stream cet après midi : https://inv.thepixora.com/watch?v=U1a-crY7xGs

Et pour donner des sous, c'est là : https://pycontg.pytogo.org/donate

La configuration d'une application Django se fait habituellement via un script Python dont les résultats dépendent de l'environnement d'exécution (variables d'environnement). Ce projet de @adamghill permet de déporter tout ou partie de la configuration dans des fichiers TOML qu'on peut associer à des environnements différents : https://github.com/adamghill/dj-toml-settings

#Python #Django #tool #toml

Python Tip #169 (of 365):

Use PDB's post-mortem mode to debug exceptions

Python script raising an exception and want to drop into an interactive environment RIGHT after the exception occurs?

Use "python -m pdb your_script.py"

Using "-m" runs the pdb module as a script.

When launched like this, PDB enters "post-mortem debugging" mode.

You'll drop into PDB as soon as your program launches.

🧵 (1/3)

#Python #DailyPythonTip

The 2026 PSF Board Elections are coming up soon 🗳️ Whether you share our social media posts, vote, or decide to run, your engagement in the election makes all the difference! #Python

Check out the timeline on our blog: https://pyfound.blogspot.com/2026/06/psf-board-election-dates-for-2026.html

Python Tip #168 (of 365):

Want to start a proper Python REPL within PDB?

Run the interact command:

(Pdb) interact
*pdb interact start*
>>>

Before Python 3.13 added support for multi-line Python expressions within PDB, I used interact often.

Launching a Python REPL was essential whenever I needed to run a block of code or even to span one line over multiple lines with code wrapped in braces/brackets/parentheses (thanks to implicit line continuation).

🧵 (1/3)

#Python #DailyPythonTip

My talk from @posetteconf : An Event for Postgres 2026 is now available on YouTube 🎥🐘

If you missed it live, you can now watch “PostgreSQL Generated Columns by Example” online.

I’ve also collected links and additional information on my blog, and I plan to publish the slides there next week ✨

https://youtu.be/wExoyNdua0g

#PostgreSQL #POSETTE #Python #Postgres #Django

RE: https://mastodon.social/@djangonews/116765592686029364

Thanks to the support of six of our sponsors, the Django Software Foundation has secured initial funding to support an Executive Director.

This is the very beginning, and we have a lot of planning and discussions to go, but this is a big step towards hiring an Executive Director.

#Django #Python #DSF

Lily boosted

Django News » 🤖 🌐 2026-06-17
@djangonews@mastodon.social

Announcing the Search for a DSF Executive Director https://www.djangoproject.com/weblog/2026/jun/17/announcing-the-search-for-a-dsf-executive-director/

“When you find yourself using indexes in Python, ask yourself is there a specialized tool for this task that might avoid indexing and make my code more readable?”

Read more 👉 https://pym.dev/avoid-indexes-in-python/

#Python

Python Tip #167 (of 365):

In PDB, prepending a line with ! will force it to be treated as Python code.

This is especially handy when your expression starts with something that PDB thinks is a debugger command.

For example, n is a PDB command ("next line"), so if you have a variable named n, typing this won't show its value:

(Pdb) n

Instead, use "!n":

(Pdb) !n
'1'

The ! tells PDB to treat n as Python code, not as a PDB command.

#Python #DailyPythonTip

#Linux #Python

Da gibt es so eine LED-Badge in 🔴 oder 🟢 oder 🔵 mit einem programmierbaren LED Feld . Herkunft und Link zum ursprünglichen Bashslript gibts hier.
Das Python GUI hat Dankward, Teilnehner am Wolust gemacht. Ein Fork
https://github.com/dewomser/LED-badge-gui

ICYMI: There’s a new Humble Bundle from No Starch Press with 15 #Python related titles!! Grab ‘Python: the Good Stuff’ for just $36 and a percentage of the proceeds goes to supporting the PSF 💝🐍 https://www.humblebundle.com/books/python-good-stuff-no-starch-books

Alt...

5 book covers with "Python: the good stuff" and the No Starch Press logo on a blue background. At the bottom there is a red banner that says "Get a bundle of books for $36" and the Humble logo.

Python Tip #166 (of 365):

Consider using PDB to debug your code.

Instead of temporary print calls, consider using Python's breakpoint() function to pause your program and drop you into the Python debugger (PDB).

Here's a tiny example:

from random import randint

breakpoint()

answer = randint(0, 1)
n = input("Guess: 0 or 1? ")

🧵 (1/2)

#Python #DailyPythonTip

“What if you wanted to sort by something that wasn't quite the original item?”

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

#Python

I'm looking for work, please boost!

I'm a senior software engineer with 35 years of experience. I've worked across an unusually wide range of domains: mobile game backends, privacy-preserving data platforms, high-throughput COVID testing infrastructure, email and account systems, e-payment processing, job marketplace systems, and bioinformatics. I pick up new domains quickly and have a track record of doing it repeatedly. I understand how to turn business needs into engineering requirements.

I've worked remotely since the 1990s and can operate with minimal supervision. I don't need hand-holding to find the right problem to solve. Several of my most valued projects were self-directed: I identified the need, built the thing, and shipped it.

Some of the technologies I'm familiar with include: Python, Perl, TypeScript/JavaScript, Haskell, Go, C, Java. Postgres, MySQL, SQLite. Flask, SQLAlchemy. AWS (Lambda, S3, RDS, SQS, EC2). Docker, Git. Github and Gitlab.

I've also repeatedly picked up new languages and stacks as needed: Haskell for differential privacy research, TypeScript for a 24/7 AWS Lambda system, Flask for my most recent employer. I've become productive with new systems over and over, and I can do it quickly.

I'm also a published author (Higher-Order Perl, Morgan Kaufmann), longtime blogger, and conference speaker with a reputation for making complex ideas clear.

My résumé is at https://plover.com/~mjd/cv/Mark%20Jason%20Dominus.pdf

mjd@pobox.com

Thanks for your attention!

#OpenToWork #remoteWork #softwareEngineering #Python #backend #hiring

#fediHire #getFediHired

@JallBarret Hardcoding the path like that would break execution of the script in a virtual environment (which is exceedingly common these days), so I wouldn't do that. A better shebang line would be `#!/usr/bin/env python3`, since that will resolve it using PATH, and I believe /usr/bin/env is very standard on POSIX-ish systems.

#Python

django-bolt 0.8.3 ⚡

• Your Django app can now be an MCP server

• URL reversing for named routes

• SHA-pinned, supply-chain-hardened CI

• OpenAPI titles + descriptions

pip install 'django-bolt[mcp]'

#Django #Python #MCP #Rust #LLM

pyodide est un portage de l'interpréteur Python en webassembly, qui permet donc de faire tourner du code écrit en Python dans le navigateur, code qui a accès à toute l'API web du navigateur.

Avec l'acceptation de la PEP 783, il est désormais possible de publier sur PyPI des paquets construits pour PyOdide : https://blog.pyodide.org/posts/314-release/.

Michel Caradec nous avait parlé de PyOdide dans son intervention "Python loin de ton ordinateur" : https://youtu.be/Dzjjwhx2Amk?list=PLv7xGPH0RMUT1GSCGHJmqnswpk-nyz5aq&t=1129

#Python #PyOdide #wasm #PyPI

Python Tip #165 (of 365):

You can make a set of sets by using frozenset.

Sets can only contain hashable objects. And regular sets are NOT hashable:

>>> groups = {{"a", "b"}, {"c", "d"}}
Traceback (most recent call last):
...
TypeError: unhashable type: 'set'

So you can't make a set-of-sets with regular sets.

🧵 (1/3)

#Python #DailyPythonTip

Pyodide 314.0: Python packages can now publish WebAssembly wheels to PyPI

https://blog.pyodide.org/posts/314-release/

#HackerNews #Pyodide #WebAssembly #Python #PyPI #314.0 #development

Pyodide 314.0: WebAssembly wheels for PyPI https://lobste.rs/s/azz673 #python #wasm
https://blog.pyodide.org/posts/314-release/

Python Tip #164 (of 365):

Thinking in terms of a Venn diagram? You need a set.

Need to find all items in one collection but not another? Intersect two collections? Check what's unique to each?

Python's sets support set arithmetic using operators:

>>> a = {1, 2, 3, 4, 7}
>>> b = {1, 3, 5, 7, 9}
>>> a | b
{1, 2, 3, 4, 5, 7, 9}
>>> a & b
{1, 3, 7}
>>> a - b
{2, 4}
>>> a ^ b
{2, 4, 5, 9}

🧵 (1/2)

#Python #DailyPythonTip

RE: https://mastodon.social/@hugovk/116731833341936501

I wrote about the stuff I got up to during the Sovereign Tech Fellowship pilot last year. Turns out it was a lot! Expect more this year!

https://hugovk.dev/blog/2026/sovereign-tech-fellowship/

#Python #SovereignTechFellowship @sovtechfund

Erik Moeller boosted

Hugo van Kemenade » 🌐 2026-06-11
@hugovk@mastodon.social

RE: https://mastodon.social/@sovtechfund/116731663840822816

After our successful pilot last year, I'm very excited to not only rejoin the 2026 Sovereign Tech Fellowship, but also that @georgically and @stanfromireland are also joining! Plus looking forward to meeting the other new Fellows!
#SovereignTechFellowship

your auntifa liza 🇵🇷 🦛 🦦 boosted

Sovereign Tech Agency » 🌐 2026-06-11
@sovtechfund@mastodon.social

We’re thrilled to announce the 2026 #SovereignTechFellowship cohort. Welcome to Jan Kowalleck, Philipp Sauberzweig, Pablo Neira Ayuso, @jorisvandenbossche, @yabellini, Denis Cornehl, Jakub Beránek, @matk, @georgically, @stanfromireland, @hugovk, Alexander Ziaee, @elioqoshi and @b0rk

Meet the 14 maintainers, community managers, and technical writers building and sustaining the critical open source infrastructure we all rely on: https://www.sovereign.tech/news/meet-the-2026-sovereign-tech-fellows

Alt...

Graphic for the Sovereign Tech Fellowship with that wordmark and the tagline “Effective support for essential experts and future contributors in the open source ecosystem” below it. At the bottom is the Sovereign Tech Agency.

Python Tip #163 (of 365):

Commit the most important time complexities to memory.

Time complexity is about how your code slows as your data grows (I stole that phrase from @nedbat).

You don't need a Computer Science degree to benefit from knowing a handful of common complexities.

🧵 (1/4)

#Python #DailyPythonTip

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

Read more 👉 https://pym.dev/when-are-classes-used/

#Python #classes

Python Tip #162 (of 365):

Avoid modifying a list while you're looping over it.

Adding or removing items while looping over a list can cause clear bugs due to skipped or double-visited items.

This loop misses -3:

>>> numbers = [4, -1, -3, 2, -1, 5]
>>> for n in numbers:
... if n < 0:
... numbers.remove(n)
...
>>> numbers
[4, -3, 2, 5]

🧵 (1/3)

#Python #DailyPythonTip

@hugovk @georgically @stanfromireland This is absolutely incredible news for the #Python ecosystem and for all #opensource ecosystems. The STA Fellowship Program is one of the most exciting things happening right now IMO, I am so happy to see it return after the pilot and to have even more lovely Pythonistas among the ranks of fellows.

Congratulations everyone!

One of those "I wonder if I could" not "I wonder if I should" results...

A command line sub-pixel renderer (gray scale). Uses 7 sub pixel emoji and 5 semi-shade emoji all in bash.

#programming #cli #cpp #python #commandline

Alt...

A terminal screen showing a greyscale image with visible pixelation. The original image can be seen: it's a cloud of eight red bordered transparent filled ovals arranged in a flower pattern. There is a red gradient pushing from solid red to full transparent from the center to the edges.

Alt...

Original vector image: it's a cloud of eight red bordered transparent filled ovals arranged in a flower pattern. There is a red gradient pushing from solid red to full transparent from the center to the edges.

💬 Interested by QGIS Plugin development ? Let's talk during Oslandia's next webinar !

👉 "Creating QGIS plugins in 2026 : issues, expectations and concerns!", Tuesday, June 30th at 5pm ( Paris time ).

Schedule :
- An Oslandia QGIS developer shares his experience and vision
- quick presentation of useful tools for QGIS development
- open discussion to share experiences

✍️ Registration is free but mandatory : https://framaforms.org/webinar-discussion-panel-creating-qgis-plugins-in-2026-1780384809

#OpenSource #QGIS #Python #Developer #Webinar

Alt...

Oslandia's webinar on QGIS plugin development, June 30th 5PM ( Paris time )

Python Tip #161 (of 365):

To flatten an iterable-of-iterables, use chain.from_iterable.

Got a list of lists?

>>> groups = [["Hong", "Ryan"], ["Anthony", "Willa"], ["Margaret", "Adrian"]]

You could flatten it with a nested comprehension:

names = [name for group in groups for name in group]

Or you could use chain.from_iterable:

from itertools import chain

names = list(chain.from_iterable(groups))

🧵 (1/4)

#Python #DailyPythonTip

Out now: Python 3.14.6 and 3.13.14!

A day late to include a last-minute OpenSSL release in the installers. Thanks to @standupmaths for the help with the release notes :)

https://discuss.python.org/t/python-3-14-6-and-3-13-14-are-now-available/107714
#Python #CPython #Python314 #Python313 #release

Just released! 🚀

🎶 pylast 6.0.0

🎤 A Python interface to Last.fm and Libre.fm

📯 Restore proxy support (potential breaking change: proxies are now always stored as a dict, before it was a str or dict)

🪇 Drop support for almost-EOL Python 3.9

https://github.com/pylast/pylast/releases/tag/6.0.0

#Python #pylast #LastFM #LibreFM #release #Python39

Just released! 🚀

em-keyboard 5.3.0

🎲 Pick a random emoji from a search. For example:

❯ em --search music --random
Copied! 👩‍🎤 woman_singer

🧛‍♂️ Drop support for Python 3.9

https://github.com/hugovk/em-keyboard/releases/tag/v5.3.0

#Python #EmKeyboard #em #CLI #release #emoji

Just released! 🚀

flake8-implicit-str-concat 0.6.0

A Flake8 plugin to identify those unjoined strings that a first Black run leaves behind:
"111111111111111111111" "222222222222222222222"

I hear there's another big release tomorrow? This release adds support for Python 3.14 and for once code changes were needed due to AST deprecation removals.

Also drop support for almost-very-nearly-EOL Python 3.9.

https://github.com/flake8-implicit-str-concat/flake8-implicit-str-concat/releases/tag/0.6.0
#Python #flake8 #release #Python314 #Python39

Out now!

Python 3.14.3 and 3.13.12!

All the best bugfixes!

https://discuss.python.org/t/python-3-14-3-and-3-13-12-are-now-available/105995

#Python #Python314 #Python313 #release

New screencast on stack-like and queue-like operations in Python.

Lists are great for one of these and not so great for the other.

https://pym.dev/stacks-and-queues/

#Python

gh-profiler 0.8.3 introduces a feature people have been asking for: when running it as a GitHub Action against new PRs or issues, you can have the action only write the profile output to the Actions log.

Instead of writing the profile output in a public comment on the PR/issue, it writes a link to the Actions log. The profile is still public, but it's not nearly as prominent.

#Python #OpenSource

Alt...

Example issue showing an auto-generated link to the Actions log containing gh-profiler information about the account that opened the issue.

Alt...

The actions log, with the job that ran gh-profiler expanded, showing the profiler output.

Just posted an updated version of my little #Python frontend to yt-dlp. With this one I'm no longer bundling yt-dlp, but instead it gets downloaded to a config directory. As a result, if there's an update to yt-dlp, I don't have to go updating my software, anybody else who uses it doesn't have to install an update, all they have to do is run the "Component Updater" shortcut in their applications menu and it'll automatically pull down the updated yt-dlp.

https://gitlab.com/gerowen/youtube-dl-pytk/-/releases/26.6.10

#Programming

les outils Python écrits en rust se multiplient : polars, uv, prek, pydantic, pyarrow, etc. À l’aune de cette belle collaboration entre les langages, ce guide "Rust pour les développeur·euses Python" de Microsoft est intéressant. Il explique les rouages de rust pour des personnes ayant les concepts de Python en tête.

https://microsoft.github.io/RustTraining/python-book/

#Python #rust #tutoriel #pratiques

The June edition of the PSF Board Office Hour is about to begin 🐍 🗒️ 9 PM UTC. We welcome you to join us to share how we can help your community, express your perspectives, and we'd love to receive your questions and feedback about the ongoing strategic planning at the PSF! #python
https://pyfound.blogspot.com/2025/10/a-new-psf-board-another-year-of-psf.html

Python Tip #160 (of 365):

Using list.insert(0, ...) in Python? Consider using a deque instead.

Inserting at the beginning of a list is slow because every existing item needs to be shuffled over.

On my machine, this takes multiple seconds to run:

numbers = []
for n in range(200_000):
numbers.insert(0, n)

There's a better structure than a list for this situation...

🧵 (1/3)

#Python #DailyPythonTip

The June edition of the PSF Board Office Hour is about to begin 🐍 🗒️ 9 PM UTC. We welcome you to join us to share how we can help your community, express your perspectives, and we'd love to receive your questions and feedback about the ongoing strategic planning at the PSF! #python
https://pyfound.blogspot.com/2025/10/a-new-psf-board-another-year-of-psf.html

To remove a prefix or suffix, use the removeprefix or removesuffix methods.

Read more 👉 https://trey.io/dley4p

#Python

“Generator expressions also pair nicely with reducer functions.”

Read more 👉 https://pym.dev/custom-comprehensions/

#Python

🐍📣 la prochaine session de #PythonRennes aura finalement lieu le mercredi 1er juillet 2026 à 19h chez Liksi (🙏 pour l'accueil) 🎉

Jonathan Leger questionnera l'utilisation d'#ORM, @anthony vous parlera de #SQL avancé avec @django.

Inscription gratuite mais nécessaire sur https://www.meetup.com/python-rennes/events/315168209/

#Python #écosystème #conférence #SQL #ORM #django #Rennes

Hear from PSF's @pypi Support Specialist Maria Ashna on what her day-to-day looks like, how she cleared multiple months-long backlogs, and the future of PyPI Orgs in this Behind the Commit episode from Mia Bajić.

▶️ https://www.youtube.com/watch?v=OGIznDrFa2U

#Python #PyPI #OpenSource

Nested functions are possible in Python

Read more 👉 https://trey.io/4u4pj0

#Python

“So the next time you need to split a string into lines, don't use the string split method.”

Read more 👉 https://pym.dev/splitlines/

#Python

Python Tip #159 (of 365):

When it comes to modifications, think of lists as stack-like.

This week's tips are all about lists and data structures.

Regardless of how large your list is, these are both very fast operations:

items.append("more")

last = items.pop()

Lists are optimized for adding items to the end and removing items from the end.

🧵 (1/3)

#Python #DailyPythonTip

gh-profiiler's bulk processing feature is a really interesting way to see how AI has been affecting contribution patterns in different projects.

Here's the 25 most recent merged/closed PRs in cPython. Most were merged. Two of the three PRs that were rejected were submitted by a user who raised a red flag when profiled.

To be clear, cPython maintainers are not using gh-profiler to make these decisions. But the output is aligning reasonably well with those decisions so far.

#Python #OpenSource

Alt...

Output of `uvx gh-profiler https://github.com/python/cpython -n 25 --back --table-only --redact`. It shows 22/25 recent PRs merged. There are two user profiles with red flags, and both of those were users whose PRs were ultimately closed without merging.

Released yesterday, but only got to publish the blogpost and push to pypi today: happy to announce the version 1.16 of slixmpp, the #python #xmpp library.

This release brings two new XEPs into the fold, and has quite a few internal changes as well.

https://blog.mathieui.net/slixmpp-1-16.html

🐱 What can cats teach us about open source leadership? A lot, actually.

PSF Executive Director @baconandcoconut spoke at @NorthBayPython 2026 on staying focused, filtering noise, and not letting the internet knock you off course.

Check it out: https://www.youtube.com/watch?v=lHlAY1bLRBs

#Python #OpenSource

la dernière intervention de @lucsorelgiffo tournait autour des #conventionalcommits (https://youtu.be/KKBBOGeRPJg?si=zejM7RTwFtrQ6PVN&t=578) :
- extension git-commit-plugin + hook de pre-commit commitlint : guider l'écriture du message de commit
- python-semantic-release : calculer la prochaine version du paquet
- le mécanisme de trusted publisher pour pousser le paquet sur PyPI

Conscient des limites de ce formalisme, Luc vous partage cet article très pertinent qui les analyse très bien : https://sumnerevans.com/posts/software-engineering/stop-using-conventional-commits/
#Python #CI

slimtoolkit permet de réduire la taille d'une image Docker. L'outil s'appuie pour cela sur une analyse dynamique du container lors de son exécution, en consignant tous les fichiers utilisés.

Il faut donc être certain de passer par tous les chemins d'exécution. Ça peut être risqué pour une image contenant un produit complexe, mais pourquoi pas pour des micro-services (vraiment micros) ou des images de démonstration...
- https://codecut.ai/shrink-python-container-slimtoolkit/
- https://github.com/slimtoolkit/slim

#Python #docker #outil

I haven't even tried nor have I even research much. But if I were going to return an older system as a dedicated distraction free IDE with only neo/lazy vim and lazy git and a few other minimal terminal based tools..can I run multi monitor without a GUI?

#neovim #lazyvim #Python #linux #terminal

Symbolica 2.0: Programmable Symbols for Python and Rust

https://symbolica.io/posts/symbolica_2_0_release/

#python #rust

Python Tip #158 (of 365):

If you had to choose, prefer automated tests over type annotations.

Of course... you don't need to choose. You can have both!

A type checker can tell you that your function returns the wrong type but it can't tell you that it returns the wrong answer.

Type annotations catch a specific category of bug: passing the wrong KIND of object.

Tests can catch that and more: logic bugs, incorrect output, mishandled edge cases, etc.

🧵 (1/2)

#Python #DailyPythonTip

Mini Shai-hulud / Miasma on #pypi https://socket.dev/blog/shai-hulud-descends-to-hades-miasma-pypi-wave #malware #python

Deux ressources autour du monkeypatching et de la création de mocks pour des tests :

- Bob Benderbos : https://belderbos.dev/blog/python-mock-patch-verify-interception/
- Anthony Sottile : https://www.youtube.com/watch?v=ZW0QaclnJKA

#Python #craft #monkeypatch #test #mock #pytest

Python Tip #157 (of 365):

Old type annotations still work, but newer Python has cleaner ways to write most of them.

Modernizing your annotations removes a lot of typing imports and boilerplate.

🧵 (1/3)

#Python #DailyPythonTip

Weekend project that turned into infra I actually run daily: MastoSum.

The stack: RHEL host, 100% rootless Podman. Web on FastAPI, Celery worker/beat/flower, PostgreSQL 16, Valkey. All on userspace networking (pasta), images built & shipped by a self-hosted Forgejo runner. No root daemon, no privileged anything.

What it does: tracks technical hashtags all day and produces one daily briefing, every point linked to the original post + author. It reads only public hashtag timelines, credits every source, and trains on nothing.

And yes, an LLM writes the prose: a local Ministral model from French lab Mistral AI, running on my own hardware. No cloud, nothing leaving the box. Saying that plainly, not burying it. The whole design goal was to point readers *back* at the authors, not replace reading them.

Example output:
https://mastosum.linuxserver.pro/s/OGuLC5whmCS1ET9jAe9leg

#Linux #Podman #RHEL #SelfHosting #Fediverse #Python

This is really good: @ichard26 has funding to work part-time on pip for the next three months! 🎉

He has lots of exciting things planned, but also the flexibility to work on whatever is best for pip, including all-important general maintenance. 💪
https://sichard.ca/blog/2026/06/pip-contract-development/
#Python #pip

Python Tip #156 (of 365):

Parsing JSON with json.loads hands you a blob of nested dicts and lists with no structure.

But you CAN describe the shape, so a type checker (or pydantic) can catch typos and wrong assumptions.

Parsed JSON has no schema. Nothing would catch a mistyped keys:

>>> import json
>>> book = json.loads(response)
>>> book["titel"] # typo, no warning

You only find out at runtime, with a KeyError (if lucky) or a subtle bug (if not).

🧵 (1/4)

#Python #DailyPythonTip

Vous aimez Python, Django, les logiciels libres et toute cette sorte de choses ? Profitez de votre week-end pour postuler ! On ferme dimanche soir.

#jerecrute #python #django #logiciellibre

https://mastodon.libre-entreprise.com/@entrouvert/116651361333143503

🤔📚 Wondering what to do this weekend? Grab the latest No Starch Press Humble Bundle, ‘Python: the Good Stuff’ and dig into 15 #Python related titles for just $36! A percentage of the proceeds goes to supporting the PSF! https://www.humblebundle.com/books/python-good-stuff-no-starch-books

Alt...

5 book covers with "Python: the good stuff" and the No Starch Press logo on a blue background. At the bottom there is a red banner that says "Get a bundle of books for $36" and the Humble logo.

I'm trying to measure noise levels in my room. I downloaded an Adroid app which giving me base levels of ~30dB, but then I have this python program https://stackoverflow.com/questions/79636781/how-can-i-find-the-decibel-of-music-or-video-that-comes-out-of-my-device-python (which is more similar to what I want in terms of capturing the sound and providing values to register) that is giving me values in the ~-40dB.

Could it be a matter of "just" adding a constant so they more or less match? Or could it be related to mixer volumes and different mics (phone vs computer)?

1/

#audio #python

RE: https://fosstodon.org/@jong0uld/116675459855568556

Thank you Foxley Talent for sponsoring DjangoCon US once again.

We're grateful for your continued support of the Django community and for helping make DjangoCon US possible year after year.

See you in Chicago this August!

#DjangoConUS #Django #Python

Made some changes to and posted an update for one of my really old #Python #programming projects. I first wrote this back in like 2011. It's a tool that lets you ping several targets in series and save the results to an output file.

Link: https://gitlab.com/gerowen/pingchecker

Not sure who decided it was a good idea to integrate Rust dependencies into Python modules.

Installing a 1GiB Rust package to build wheel is a waste of bandwidth and time.

#FreeBSD #Python #Rust #WHY

Alt...

x Preparing metadata (pyproject.toml) did not run successfully. | exit code: 1 > [5 lines of output] /tmp/pip-build-env-4onzua_e/overlay/lib/python3.11/site-packages/setuptools/_vendor/wheel/bdist_wheel.py:4: FutureWarning: The 'wheel' package is no longer the canonical location of the 'bdist_wheel' command, and will be removed in a future release. Please update to setuptools v70.1 or later which contains an integrated version of this command. warn ( Python reports SOABI: cpython-311 Unsupported platform: 311 Rust not found, installing into a temporary directory [end of output]

“This seems like it should have resulted in a SyntaxError!”

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

#Python

Python Tip #155 (of 365):

When a method returns an instance of its own class, annotate the return type as Self.

Hard-coded class names break for subclasses:

class Connection:
def __enter__(self) -> "Connection":
self.connect()
return self

If PooledConnection inherits from Connection, a type checker will think PooledConnection().__enter__() returns a Connection (not a PooledConnection).

🧵 (1/2)

#Python #DailyPythonTip

gh-profiler 0.7.0 is a significant improvement over previous versions.

All PR and issue activity is broken into three categories: repos the user owns, repos in orgs the user is publicly associated with, and external repos. All flag evaluation focuses on activity against *external* repos.

This is a model open source maintainer. They were showing up red, because they were opening a bunch of identical issues. But those were in their own orgs, and quite appropriate.

#Python #OpenSource

Alt...

$ uvx gh-profiler@0.7.0 <redacted> GitHub user: <redacted> 🟢 No concerns found with user's profile. 🟢 Account age: 17 years 🟢 Profile information: name: <redacted> ... Empty fields: company Orgs: <redacted> 🟢 No concerns found with recent PR activity. 32 PRs opened in the last 21 days. 0 opened against repos the user owns. 27 opened against repos in publicly associated orgs. 5 opened against external repos. 🟢 5 of 5 external PRs merged in the last 21 days. 🟢 0 of 5 external PRs closed without merging in the last 21 days. 🟢 No concerns found with recent issue activity. 39 new issues opened in the last 21 days. 0 opened in repos the user owns. 37 opened in repos in publicly associated orgs. 2 opened in external repos. 🟢 0 external issues closed as NOT_PLANNED. 🟢 0 external issues opened with the same title.

The PSF's Strategic Plan full draft is available and we want your feedback.

After sharing high-level goals in May, we're opening a 3-week community feedback window. Read the full draft and tell us: Are these the right goals? Is anything missing? #Python #PyPI

https://pyfound.blogspot.com/2026/06/psf-strategic-plan-2026-draft-open-for.html

un article sur uv et les écueils relatifs à la gestion des dépendances :

https://www.loopwerk.io/articles/2026/uv-ux-mess/

#python #pratiques #dépendances #lifecycle #uv

The talks list is up for the Language Summit and we've emailed the attendees! This'll be the first time for the summit at EuroPython since we decided to alternate with PyCon US.

https://ep2026.europython.eu/language-summit/

I'm looking forward to it in Kraków next month!

#Python #EuroPython #LanguageSummit

Python Tip #154 (of 365):

Writing a type that's "this or that"? Use the | operator instead of Union or Optional.

"int | str" reads better than "Union[int, str]", and "int | None" reads better than "Optional[int]".

The old way involved helpers imported from typing:

from typing import Optional, Union

def parse(value: str) -> Optional[int]: ...

def normalize(value: Union[int, str]) -> str: ...

🧵 (1/2)

#Python #DailyPythonTip

At the recent @pycon, @cheukting_ho gave a talk on free threading, which was great BTW. She mentioned PEP 8, calling it the “King of PEPs” 👑

Giving it a read over. I’ve probably skim-read it at best — just doing what flake8 told me for years. 🫡

That the opening bit is “A Foolish Consistency is the Hobgoblin of Little Minds” is just lovely. 🥰

I wonder if “this style guide evolves over time” will mean that the 79 chars line length will be revisited? 🤔

https://peps.python.org/pep-0008/#a-foolish-consistency-is-the-hobgoblin-of-little-minds #PEP8 #Python

“You can use the built-in sorted function to sort any iterable in Python.”

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

#Python

🐍🚀 Out now: Python 3.15 beta 2!

Still all this good stuff:

💤 Lazy imports!
🧊 frozendict builtin!
💂 sentinel builtin!
📉 Tachyon profiler!
🖼️ Frame pointers everywhere!
🧳 Unpacking in comprehensions!
8️⃣ UTF-8 default encoding!
🆕 Startup config files!
⌨️ Loadsa typing!
🎨 More colour!
🚌 & more!

Library maintainer? Add 3.15 to your CI and keep those bug reports coming!

https://discuss.python.org/t/python-3-15-0-beta-2-is-here/107610

#Python315 #Python #release

Just released: Python Docs Sphinx Theme 2025.9! 🚀

This enables translations of the theme and adds translations for:

Brazilian Portuguese
Greek
Japanese
Polish
Simplified Chinese
Spanish
Swedish
Traditional Chinese
Turkish

Thanks to all our translators!

https://github.com/python/python-docs-theme/releases/tag/2025.9
#Python #docs #Sphinx #PythonDocsTheme #PythonDocsSphinxTheme

Just released: Python Docs Sphinx Theme 2025.9.2! 🚀

Add German, Korean and Indonesian translations
Fix html page translation
Fix Copy button copying line numbers
Fix search button cutting off long translations

https://github.com/python/python-docs-theme/releases/tag/2025.9.2
#Python #docs #Sphinx #PythonDocsTheme #PythonDocsSphinxTheme

Just released: Python 3.14.0 release candidate 3! 🚀🐍

🪄 Finally, the final release candidate

🪄 We fixed *another* bug that required the ".pyc magic number" to be increased

🪄 The ABI isn't changing, and wheels built for rc1 and rc2 should still work

👤 This was the first release @savannah shadowed!

🏆 Please test and report bugs!

https://discuss.python.org/t/python-3-14-0rc3-is-go/103815?u=hugovk

#Python #CPython #Python314 #release

Just released: Python 3.15.0a4 and look at those JIT numbers!

https://discuss.python.org/t/python-3-15-0-alpha-4/105706/1

#Python315 #Python #CPython #release

I heard you like alphas?

Just released! Python 3.15.0a5, this time built against `main` from today instead of last month! 🚀

https://discuss.python.org/t/python-3-15-0-alpha-5-yes-another-alpha/105721

#Python315 #Python #CPython #release

By popular demand (@miketheman), pypistats now has a `--sort` option so you can sort by other columns such as date, rather than the default downloads.

https://github.com/hugovk/pypistats/releases/tag/1.13.0

#Python #release #pypistats

Alt...

Output of running "pypistats overall pytest-socket --monthly --mirrors without". It's a table with category, date, percent and downloads headers. The rows are sorted by downloads, highest first.

Alt...

Output of running the same command but with "--sort date". The rows are now sorted by date, earliest first.

Python Tip #153 (of 365):

When you write type annotations, embrace duck typing: annotate with the most general type you can.

Don't require a list if any iterable will do. Don't require a dict if any mapping will do.

Most functions that "accept a list" actually accept any iterable.

Instead of:

def square_all(numbers: list[float]) -> list[float]: ...

Prefer:

from collections.‍abc import Iterable
def square_all(numbers: Iterable[float]) -> list[float]: ...

🧵 (1/2)

#Python #DailyPythonTip

🟣️ Nouveau journal de bord sur le blog !

➡️ https://blog.flozz.fr/2026/06/02/journal-de-bord-1-rencontres-irl/

Le weekend dernier c'était les JDLL à Lyon, je vais donc revenir un peu sur cette édition. Je profite aussi de ce journal pour vous annoncer mon talk au prochain meetup Python lyonnais. 😄️

#Lyon #JDLL #JDLL2026 #Python

Want to support the PSF and stock up on #Python books at the same time? The @nostarch Humble Bundle has 15 titles (including Automate the Boring Stuff + Python Crash Course) for just $36. Offer ends June 18th! https://www.humblebundle.com/books/python-good-stuff-no-starch-books

Alt...

5 book covers with "Python: the good stuff" and the No Starch Press logo on a blue background. At the bottom there is a red banner that says "Get a bundle of books for $36" and the Humble logo.

Ein Bug (?) in Thonny (#python #ide für Anfänger) kostet mich hier echt Lebenszeit: Unter #linux #kde erscheint der "save as" Dialog HINTER dem Hauptfenster.
Für die Schüler heißt das: Das Programm ist abgestürzt (denn es ist ein modaler Dialog, das Hauptprogramm läuft nicht weiter, wenn dieser nicht beendet wurde).

Das habe ich natürlich schon 1000 mal gezeigt, aber die, die heute nachschreiben, haben das natürlich alle ausnahmslos nicht mitbekommen.
#fediLZ #informatik

Hudson River Trading is hiring Trading Systems Engineer

🔧 #python #ansible #aws #gcp
🌎 Austin, Texas; Boulder, Colorado; Chicago, Illinois; London, United Kingdom; New York City, New York; Seattle, Washington
⏰ Full-time
🏢 Hudson River Trading

Job details https://jobsfordevelopers.com/jobs/trading-systems-engineer-at-hudsonrivertrading-com-apr-23-2026-56f1e3?utm_source=mastodon.world&utm_medium=social&utm_campaign=posting
#jobalert #jobsearch #hiring

But if we use the built-in list function instead, we could make a copy of our list and accept any iterable, not just lists

Read more 👉 https://trey.io/rbi1o4

#Python

Python Tip #152 (of 365):

Be consistent about your type annotations: skip them entirely or run a type checker.

An unchecked annotation is really just a comment, and it may be a confusingly incorrect comment. A type checker keeps your annotations honest.

Annotations can add noise to code, but they can also increase correctness.

Half-annotated code that isn't type checked adds visual noise WITHOUT adding the safety of type checking.

🧵 (1/2)

#Python #DailyPythonTip

ESP32/MicroPython expert wanted

My company is looking for someone to make a small proof of concept:

Read the data (NDEF) of an NFC tag using (async) MicroPython on an ESP32C3 and a PN532 (or comparable) NFC reader

If you think you can make this proof of concept, contact me for negotiating details.

#Python #ESP32 #NFC #FediHire #GetFediHired

la prochaine conférence PyConFR, organisée par l' @AFPy aura lieu du 29 octobre au 1er novembre 2026 à Biarritz 🎉 !
https://mamot.fr/@AFPy/116651189914289333

L'appel à interventions est ouvert jusqu'au 31 juillet 2026 : https://cfp.pycon.fr/pyconfr-2026/cfp.

#Python #PyConFr #conférence

Oh look, https://pythonwheels.com is at 360/360.
#Python

✍️ New post about a new package, django-integrity-policy, for setting the new Integrity-Policy security header.

https://adamj.eu/tech/2026/05/31/introducing-django-integrity-policy/

#Django #Python

“Normally, classes store their attributes in a dictionary called __dict__.”

Read more 👉 https://pym.dev/__slots__/

#Python

Python Tip #151 (of 365):

For truly unpredictable randomness, use the secrets module

Python's random module relies on pseudo-randomness, meaning it generates numbers in a predictable order. If someone can guess the random "seed" (it's based on the current time) they can predict the numbers produced.

For true randomness, use Python's secrets module instead.

🧵 (1/3)

#Python #DailyPythonTip

I’d like to announce the most unlikely #Python package release:

service-identity 26.1.0, the best way to verify if a certificate is valid for a hostname, IP, or URI is out!

The main change is that we were able to switch from pyasn1 (thank you for more than a decade of great service! 🫡💛) to do everything within PyCA's cryptography.

https://github.com/pyca/service-identity/releases/tag/26.1.0

Si j'arrive à faire marcher ce truc, je crois que je serai heureux comme un pape ... https://ubuntuhandbook.org/index.php/2025/06/one-click-turn-linux-second-monitor/ #linux #gnome #networking #display #opensource #python

The other day I "heard" someone mentioning `niquests` as a replacement for `requests`:

https://pypi.org/project/niquests/

"It is a drop-in replacement for Requests, which is under feature freeze [...] is the “Safest, Fastest[^10], Easiest, and Most advanced” Python HTTP Client"

Meanwhile `requests` made a release after. Is this some kind of typosquatting? What do we know about `niquests` real reason to fork and/or reimplement?

#Python

Every terminal debugger forces a choice: a REPL with full evaluation power but no source context, or an editor with visual breakpoints but a crippled debug console. dap-mux removes the need to choose.

Connect your editor and your REPL to the same debug session. Both are first-class clients. Neither knows the other is there.

Ships with an IPython frontend. Speaks standard DAP — any language, any editor. This is the very first release. There's so much work to do.

github.com/dap-mux/dap-mux
#Python #debugging #Helix #neovim #IPython

Python Tip #150 (of 365):

When you need to pick a random item, use random.choice

You might be tempted to use random.randrange for selecting random items from a list by their index, but there's a better way!

To pick a random item any sequence, use random.choice:

>>> import random
>>> random.choice(["red", "green", "blue"])
'green'

#Python #DailyPythonTip

“Indexing isn't bad, but there's often a higher level way to accomplish a goal than using an index.”

Read more 👉 https://pym.dev/avoid-indexes-in-python/

#Python

Another Italian-language talk this morning at PyCon Italia 2026 🇮🇹🐍

This time I’m following Luca Di Vita, co-founder of @pescara together with me, as he takes the audience on a journey from derivatives and differential equations to Neural ODEs and continuous neural networks.

It’s always nice to see local community members sharing their expertise on stage, especially on topics that combine mathematics, machine learning, and research ✨

#PyConItalia #Python #MachineLearning

At #PyConItalia, @cheukting_ho is telling us about free-threaded #Python. Since the screenshot was taken, we're now up to 208 / 360 of the top PyPI packages ready for free threading! 🚀🧵
https://hugovk.dev/free-threaded-wheels/
#PyConIT

Alt...

Cheuk presenting a chart of 191/360 ready.

Alt...

Slide showing 191 / 360 ready.

One thing I always appreciate about PyCon Italia is that part of the schedule is in Italian, making the conference accessible to people who may not be comfortable following talks in English 🇮🇹🐍

This morning I’m attending Juna Salviati’s talk, “L’essenziale è invisibile agli occhi (ma non a Python)”, an introduction to steganography and the art of hiding messages in plain sight. Very interesting topic and a great example of how broad the Python ecosystem can be ✨

#PyConItalia #Python #PyCon

anybody here using niquests or, even better, urllib3.future? The projects look pretty sweet and like straight upgrades, have they been stable and good to use in your experience?

https://niquests.readthedocs.io/en/latest/ and https://urllib3future.readthedocs.io/en/latest/

#python

Ohlala, encore du code ésotérique ...
C'est très rigolo, et très bizarre en même temps. https://susam.net/elliptical-python-programming.html #python #programming #bizarre

@pycon @BajoranEngineer @djangoconeurope Dawn’s keynote was a great way to close the second day of PyCon Italia 2026.

The talk sparked lots of questions from the audience, and the discussion could probably have continued much longer.

To wrap up the session, we took a final selfie together on stage before bringing the second day of the conference to a close.

#PyConItalia #Python #Community

Python Tip #149 (of 365):

Sort by specific attributes with operator.attrgetter.

Have an iterable of dataclasses, namedtuples, or some other record-like object?

Want to sort them by a specific attribute?

Use operator.attrgetter:

from operator import attrgetter

For example, if we had an iterable of Book objects that have a title attribute, we could sort them by that:

sorted_books = sorted(books, key=attrgetter("title"))

🧵 (1/2)

#Python #DailyPythonTip

Closing the second day of @pycon 2026 as talk manager for @BajoranEngineer keynote.

After a long day, I’m tired but genuinely happy to help Dawn on stage. Years ago, she helped me when I gave my first talk abroad at @djangoconeurope 2019 in Copenhagen. It feels special to return the favour.

Her keynote, "Stop Being a Generalist", explores why going deep on a domain can be more valuable than trying to do everything.

#PyConItalia #Python #OpenSource #Community #PyCom

This afternoon after lunch at @pycon 2026 we gathered for a community photo with many local Python groups from across Italy.

From @pycatania to @pybari , Campania @pescara , Marche, @pyvenice , Turin, @pythonmilano , Genoa, @pbg and the newest community joining the network, like Salento, it was great to see so many people representing local Python communities in one place.

The @pythonitalia community keeps growing. 🐍🇮🇹

#PyConItalia #Python #Community #PythonItalia #PyCon

RE: https://en.osm.town/@rafagaslinks/116657755149278976

#Python and maybe #OpenStreetMap :)

I'm also helping Jonathan Ehwald as talk manager for his session at PyCon Italia.

Jonathan is presenting "What I learned migrating @FastAPI & Friends to uv", sharing lessons learned while migrating FastAPI, Typer, SQLModel and other projects to uv.

As someone who maintains libraries himself, it's great to hear practical advice from somebody who has already done the migration work at scale.

#PyConItalia #Python #uv #PyCon #FastAPI #Typer #SQLModel

Today I'm helping my friend Piero Savastano as talk manager at PyCon Italia.

Piero is presenting his talk in Italian, "Stregatto 2.0", about Cheshire Cat AI, an AI agent framework born in Italy and released under the GPL license.

He brings a lot of energy to the stage: moving around the room, engaging the audience, asking questions, and throwing Cheshire Cat t-shirts to people with the right answers.

#PyConItalia #Python #AI #PyCon

Today I'm helping my friend @carlton present his talk "Static Islands, Dynamic Sea" at PyCon Italia 2026.

We've known each other for years through Django, and we're currently co-organising Django on the Med together.

Former @django Fellow, maintainer, and co-host of @Djangocha, Carlton is exploring how typing can add safety where needed while keeping Django's dynamic nature intact.

#PyConItalia #Django #Python #PyCon #DjangoOnTheMed #DotM

Day 2 of PyCon Italia 2026 has started! ☕🐍

After a social evening that ended a little later than planned, we're back in the keynote room this morning with Diego Russo talking about the evolution of CPython performance.

It's always a pleasure to see friends from the Python community on stage, especially when the topic is how Python itself keeps getting faster release after release.

A strong start to the second day of the conference. 🚀

#PyConItalia #Python #CPython #PyCon

The day started with the annual @pythonitalia members' meeting. 🇮🇹

It's always a good opportunity to hear about what's happening across the Italian Python community, discuss ongoing initiatives, and help shape what comes next. 🐍

#PyConItalia #PythonItalia #Python #Community

“When you print to the terminal in Python, by default, your output goes to standard output.”

Read more 👉 https://pym.dev/standard-error/

#Python

For an hour we walked through streets, squares, and porticoes while discovering the history of a city with more than two thousand years of history and home to the world's oldest university, where I had the pleasure of studying 😊

#PyConItalia #Bologna #Python #Community #Travel

This afternoon, after the closing keynote, around sixty PyCon Italia participants joined a guided tour through the historic centre of Bologna.

#PyConItalia #Bologna #Python #Community #Unibo

This afternoon I had the pleasure of introducing @sarahboyce keynote at @pycon 2026 🐍

Her talk, “Django has a marketing problem”, tackled some old myths about Django and reminded us that, after 20 years, it is still modern, fast, and actively developed.

As someone involved in the Django community, it was a real pleasure to welcome Sarah on stage 💚

#PyConItalia #Django #Python #OpenSource #Community

J'ai enfin une première version. C'est plus proche d'un proto, mais ça fonctionne et fait ce dont j'ai besoin aujourd'hui.

Bonus : ça tourne aussi bien sous Linux que sur Android : Merci #Beeware

#python

Python Tip #148 (of 365):

Sort by specific sequence items with operator.itemgetter.

Have an iterable of sequences (tuples, lists, etc.)?

You can sort them by one or more of their indexes using itemgetter from Python's operator module.

from operator import itemgetter

For example, say we have CSV rows:

rows = list(csv.reader(file))

And we want to sort these rows by their second column.

We can do this:

sorted_rows = sorted(rows, key=itemgetter(1))

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#Python #DailyPythonTip

Just finished presenting my talk at PyCon Italia 2026: “Django GeneratedField by Example” 🐍

The schedule was a bit tight, but somehow we still managed to get through all the questions after the talk 😄

Thanks to everyone who joined the session, asked questions, grabbed Django on the Med stickers, or adopted one of the small 3D-printed Python Pescara keychains 🐬

Now time to finally breathe a little before the next hallway conversation starts ☕️

#PyConItalia #Django #Python #PyCon

Alt...

Selfie with my talk manager and talk attendees

borgstore 0.5.0 was just released!

borgstore is a general purpose key/value store with some nice features, supporting misc. backends (local fs, sftp, REST https, s3, rclone).

it now supports optional caching (usually via an additional posixfs caching backend).

https://github.com/borgbackup/borgstore/releases/tag/0.5.0

#python

Right now I’m helping Francesco Bruzzesi present his talk “Narwhals: One dataframe API to run them all” as talk manager here at PyCon Italia 🐍

Even if Francesco is already a very experienced speaker, it’s always nice helping behind the scenes with the setup, timing, microphones, questions from the audience, and all the small details that help a talk flow smoothly.

Lots of interest around the Python dataframe ecosystem right now 📊

#PyConItalia #Python #DataScience #Narwhals

#TIL #jinja2 expression have no operator precedence, so `{{ ['z'] + ['a', 'b'] | sort }}` gives `['z', 'a', 'b']` and not `['a', 'b', 'z']`.

See also https://github.com/pallets/jinja/issues/119 14yo

#Python #Ansible

Django Crontask version 2.0 is out the door! Thanks for all your wonderful contributions and bug chases.

https://github.com/codingjoe/django-crontask

#Django #Python #Celery

L’équipe Entr’ouvert s’agrandit encore : nous recrutons un·e développeur·euse Python/Django.
Consultez l'offre et candidatez avant le 7 juin : https://www.entrouvert.com/actualites/2026/embauche-developpeureuse-python-django-2026/

#jerecrute #SCOP #logiciellibre #dev #python #django

RE: https://mastodon.social/@raffaellasuardini/116651793485587192

Lots of good practical advice in here from @foosel,
https://securitytxt.org is a new one to me.
#Python #security

Le petit plus #fediverse :

• On m'a demandé de prévenir : si vous n'avez pas d'expérience/compétences #django/#python, vous serez surement en bas de la pile.
• C'est une #scop, ça a ses avantages et ses inconvénients, pensez-y bien fort avant de postuler/accepter
• Si vous êtes pris, vous ne pourrez plus dire du mal de vos collègues sur le #fediverse car on y est tous (non mais une bonne partie, enfin surtout moi et d'autres)... Ca peut jouer dans la balance, mais bon, vous aurez de nouveau followers et des supers* collègues !

**: non, ce n'est pas vrai, mais si je ne le dis pas, ils vont me tomber dessus :-p

L’équipe Entr’ouvert s’agrandit encore : nous recrutons un·e développeur·euse Python/Django.
Consultez l'offre et candidatez avant le 7 juin : https://www.entrouvert.com/actualites/2026/embauche-developpeureuse-python-django-2026/

#jerecrute #SCOP #logiciellibre #dev #python #django

The first keynote of the first day at PyCon Italia 2026 has just started 🐍

Right now Merve Noyan from Hugging Face is walking through the current state of open-source multimodal AI, from vision-language models to agents and OCR tools 👀

A very packed room for a topic that feels increasingly close to everyday developer workflows lately 🤖

#PyConItalia #Python #AI #OpenSource

PyCon Italia 2026 has officially started 🐍

The opening by Valerio and Sara walked everyone through the whole PyCon Italia opening: talks, lightning talks, social events, community spaces, and all the practical details around the conference.

We also received an important introduction to one of the key local topics in Bologna: the difference between tortelli and tortellini 🍝🙂

#PyConItalia #Python #Community #Bologna

After cooling down from the intense heat with a swim in the hotel pool, we treated ourselves to a very typical Bolognese dinner near the hotel 🍝✨

Then one last round of chats at the hotel bar before the night ended.

Days at @pycon always become very long, and somehow nobody ever seems to want to go to sleep 😄

Next stop: the official start of the conference tomorrow morning 🐍

#PyCon #PyConItalia #Python

Alt...

Swimming pool

Alt...

Selfie with people having dinner

Alt...

Selfie with people having dinner

Alt...

Selfie with people at the hotel bar

eeyyyyyy fellow python spice enjoyers, what would you say is more "readable" / straight-forward for a nested dictionary creation/update scenario?

a = {}
b = "pumpkin"
c = "spice"
if b in a:
    a[b][c] = True
else:
    a[b] = {c: True}

a = {}
b = "python"
c = "spice up ya life"
a.update({b: {c: True}})

Advice for new #Python learners: break the habit of starting every for loop with `for i in`: there is probably a much better name for your iteration variable than `i`.

Python Tip #147 (of 365):

Sort by unbound method objects instead of using "lambda" 🧵

Say you're sorting mixed capitalization strings:

>>> frameworks = ["jQuery", "React", "Alpine", "htmx", "Svelte"]
>>> sorted(frameworks)
['Alpine', 'React', 'Svelte', 'htmx', 'jQuery']

You could case-normalize with a key function that calls casefold on each string:

>>> sorted(frameworks, key=lambda s: s.casefold())
['Alpine', 'htmx', 'jQuery', 'React', 'Svelte']

Or...

🧵 (1/3)

#Python #DailyPythonTip

Ne serait-ce pas le moment de se lancer dans le dev d'une petite app Android pour générer "à la volée" les metadatas des prochains articles de blogs ?
🫣
#python #beeware

Thanks to @sethmlarson we have a new CPython security policy.

I like how it starts:

"Python Security Response Team (PSRT) members balance this work against many other responsibilities. Please be thoughtful about the time and attention your report requires. Repeated failure to respect the security policy will result in future reports being rejected, or the reporter being banned from the python GitHub organization, regardless of technical merit."

https://devguide.python.org/security/policy/
#Python #security

@nedbat Can you really claim to support recent Python versions if you don't have 3.16 in your classifiers?
https://github.com/coveragepy/coveragepy/blob/eb55feedf54b363e3d0b678f20abf3bfd3551a88/setup.py#L68-L73

https://pyreadiness.org/3.16/
#Python #Python316

Newly public screencast on randomness in Python.

The most common function I use from #Python's random module is the choice() function.

Also, when I need randomness for something security-sensitive, like a password, I do NOT use the random module.

More on the random module in tomorrow's Python tip email.

https://pym.dev/random-numbers/

Python Tip #145 (of 365):

To sort by specific features of an iterable of objects, use a key function.

For example, we could sort strings by their lengths:

>>> colors = ["yellow", "blue", "green", "purple"]
>>> sorted(colors, key=len)
['blue', 'green', 'yellow', 'purple']

A key function can be any callable that can accept each object from the iterable and return a "key" for each.

This all works because functions are objects (recall tip 34).

🧵 (1/2)

#Python #DailyPythonTip

Python Tip #146 (of 365):

Don't use sorted to find the largest/smallest item(s).

Have an iterable of items and need the largest/smallest ones?

>>> numbers = [47, 199, 123, 275, 29, 123, 18, 76, 76, 351]

Unless you need every item in sorted order, you probably don't need to sort your iterable.

You can use the max function:

>>> max(numbers)
351

To get the smallest value, you can use min:

>>> min(numbers)
18

🧵 (1/2)

#Python #DailyPythonTip

Sortie de Tryton 8.0 https://linuxfr.org/news/sortie-de-tryton-8-0 #Bureautique #cadriciel #gestion #tryton #python #erp

Follow-up to the previous post on WSGISwitchInterval tuning.

Tightening the switch interval recovered most of the throughput a GIL-bound mod_wsgi config lost going multi-threaded. But each process was still pinned to one core. That ceiling is the GIL itself.

The new post is the metrics comparison with free-threading on. Single process, multiple cores. Of interest beyond mod_wsgi users.

https://grahamdumpleton.me/posts/2026/05/free-threading-vs-the-gil-in-mod-wsgi-6-0-0/

#python

WSGISwitchInterval is a new directive in mod_wsgi 6.0.0 that exposes Python's GIL switch interval as a tunable.

The default has not changed since Python 3.2 shipped in 2011. For CPU-bound Python workloads it can leave large throughput gains on the table. A benchmark in the post goes from 37k to 121k rpm just by tightening it.

The directive is mod_wsgi specific, but the lever applies to any Python web stack.

https://grahamdumpleton.me/posts/2026/05/wsgi-switch-interval-in-mod-wsgi-6-0-0/

#python

Python Tip #145 (of 365):

To sort by specific features of an iterable of objects, use a key function.

For example, we could sort strings by their lengths:

>>> colors = ["yellow", "blue", "green", "purple"]
>>> sorted(colors, key=len)
['blue', 'green', 'yellow', 'purple']

A key function can be any callable that can accept each object from the iterable and return a "key" for each.

This all works because functions are objects (recall tip 34).

🧵 (1/2)

#Python #DailyPythonTip

Our libzim #Python and #Node.js bindings have been upgraded with the latest libzim 9.7.0.

This brings many improvements around redirections and aliases!

Check-it out!
* https://www.npmjs.com/package/@openzim/libzim
* https://pypi.org/project/libzim/

🆕 Nouvel épisode du podcast Les Amis Causent !

🎧 Ep 94 - Tu quoque my(co)philie

https://smartlink.ausha.co/les-amis-causent/ep-94-tu-quoque-mycophilie?asmid=573636

😂 Premier épisode de la saison 5, qui réunit toujours la même équipe de chroniqueurs pour votre plus grand bonheur et celui des passagers qui vous verront rigoler tout seul dans les transports !

#aulophilie #fellaporte #forniphilie #kink #lapin #LesAmisCausent #matcha #melolania #nebulophilie #oculolinctus #ours #podcast #ponyplay #python #RATP #sdf #série #shibari #zentaï

Happy to announce the 0.18 release of Poezio, a terminal XMPP messaging client.

This new release brings better compatibility with python 3.15, Message Retraction support, a new way of showing or hiding groupchat presences, and a lot of typing!

A more detailed changelog is available on my blog:
https://blog.mathieui.net/poezio-0-18.html
#poezio #python #slixmpp #XMPP #Jabber

Last week I was in Long Beach for @pycon 2026 🌴🐍

Beyond my talk, the best part as always was meeting people from all across the Python community: hallway conversations, old friends, new friends, selfies, tacos, and many unexpected moments ✨

I collected the live posts and photos I shared during the conference into a small timeline on my blog 🙂

https://www.paulox.net/2026/05/21/my-pycon-us-2026/?v=1

#Python #PyConUS #PyCon #PyConUS2026

Second post in the mod_wsgi 6.0.0 series is up. This one covers the new WSGIFreeThreading directive for opting processes into PEP 703 free-threaded Python. Even when mod_wsgi is built against a free-threaded Python, GIL-enabled mode remains the default. You opt in per process, and can mix free-threading with per-interpreter GIL and the classic process-wide GIL across daemon process groups.

Try the RC against a real workload if you can and provide feedback.

https://grahamdumpleton.me/posts/2026/05/free-threading-in-mod-wsgi-6-0-0/

#Python

mod_wsgi 6.0.0 is out as a release candidate. First post in a series about what's new in the release, starting with the per-interpreter GIL story and the new WSGIPerInterpreterGIL directive that lets sub-interpreters in a daemon process hold their own GIL under PEP 684.

If you can try the RC against a real workload and file issues, that would be very useful.

https://grahamdumpleton.me/posts/2026/05/per-interpreter-gil-in-mod-wsgi-6-0-0/

#Python

Python Tip #144 (of 365):

To suppress specific exceptions, use contextlib.suppress.

You could suppress an exception like:

try: ...
except ValueError: pass

But I would recommend:

from contextlib import suppress
with suppress(ValueError): ...

contextlib.suppress more clearly indicates "we're deliberately suppressing an exception" instead of "we got lazy while exception handling".

You should ALSO always ask yourself, "should I actually BE suppressing this exception?"

#Python #DailyPythonTip

Python lists store pointers to PyObject instances, requiring memory for both the pointer and a separate object header, whereas Lua stores numbers directly in table arrays. This overhead is CPython-specific; dynamic typing need not be so inefficient, as Lua shows.

#python

Alt...

Python list +---------+---------+---------+ | address | address | address | | X | Y | Z | +---------+---------+---------+ X Y Z +----------+ +----------+ +----------+ | PyObject | | PyObject | | PyObject | | HEAD | | HEAD | | HEAD | +----------+ +----------+ +----------+ | 512 | | 3.1415 | | 1024 | +----------+ +----------+ +----------+ Lua array +-----------+-----------+-----------+ | 3-bit tag | 3-bit tag | 3-bit tag | | 512 | 3.1415 | 1024 | +-----------+-----------+-----------+

gh-profiler 0.6.2 no longer flags users whose only issue is having a newer account. If all other flags are green, the account age flag is adjusted back to green.

This avoids discouraging people who are excited to contribute to open source, and immediately see a red or yellow flag when they're profiled.

#Python #OpenSource

Alt...

$ uvx gh-profiler@0.6.1 <redacted> GitHub user: <redacted> 🔴 Account age: 11 days 🟢 Profile information: ... 🟢 <redacted> opened fewer than 10 PRs in the last 21 days. 🟢 <redacted> opened no new issues in the last 21 days. $ uvx gh-profiler@0.6.2 <redacted> GitHub user: <redacted> 🟢 Account age: 11 days 🟢 Profile information: ... 🟢 <redacted> opened fewer than 10 PRs in the last 21 days. 🟢 <redacted> opened no new issues in the last 21 days.

New blog post: Async support for wrapt.synchronized.

Before 2.2.0, wrapt.synchronized on an async def looked like it worked, but the threading.RLock was only held around coroutine construction, not the awaited body. Ten gathered tasks would stomp on each other.

2.2.0 detects async functions, uses asyncio.Lock, and adds an async-with form. With a note on why there is no asyncio.RLock in the standard library.

https://grahamdumpleton.me/posts/2026/05/async-support-for-wrapt-synchronized/

#Python

New blog post: Reshaping decorated functions with wrapt.

When a decorator changes a function's parameter shape or its sync/async-ness, runtime introspection should reflect the wrapper, not the wrapped. wrapt 2.2.0 adds with_signature for the signature side, and mark_as_sync / mark_as_async for the calling-convention side. Plus async_to_sync / sync_to_async bridges.

https://grahamdumpleton.me/posts/2026/05/reshaping-decorated-functions-with-wrapt/

#Python

Python Tip #143 (of 365):

Re-raise exceptions deliberately

When you need to re-raise an exception, you have 2 options:

1. Use a bare "raise" statement
2. Use "raise" with a "from" clause

🧵 (1/3)

#Python #DailyPythonTip

New blog post: Lazy monkey patching with wrapt.

If you write APM agents, tracers, profilers, or anything else that instruments Python code, wrapt has supported deferred monkey patching from the start. It just didn't have a dedicated docs page until April 2026.

wrapt 2.2.0 also adds a ? modifier that closes the last ergonomic gap, and Python 3.15's lazy imports make this the right default for instrumentation libraries.

https://grahamdumpleton.me/posts/2026/05/lazy-monkey-patching-with-wrapt/

#Python

New blog post: Per-instance lru_cache using wrapt.

wrapt 2.2.0 adds an lru_cache helper that fixes the three things that go wrong with functools.lru_cache on instance methods: a shared cache budget across all instances, strong references that block garbage collection, and a requirement that self be hashable.

It is not a replacement. functools.lru_cache still does the caching. wrapt just arranges a separate cache per method per instance.

https://grahamdumpleton.me/posts/2026/05/lru-cache-using-wrapt/

#Python

New blog post: Stateful decorators in wrapt.

The latest wrapt release (2.2.0) introduces bind_state_to_wrapper, a small helper that makes it noticeably easier to write decorators that keep state across calls and still work correctly on functions, instance methods and class methods.

The post walks through how you'd write this in plain Python, why the class-based approach silently breaks on methods, and how wrapt removes the descriptor-protocol headaches.

https://grahamdumpleton.me/posts/2026/05/stateful-decorators-in-wrapt/

#python

#GetFediHired Our team at Fable is looking for a Staff Software Backend Engineer (10 years+) familiar with #python and #django in one of various US cities, Canadian cities, or Mexico City.

#FediHired

https://jobs.ashbyhq.com/ScribdInc/450391bf-4fb2-4fae-9acd-96851c7e82e3?utm_source=BDVAEvOEqo

Tuple unpacking allows us to give names to values that would otherwise only be referenced by an index.

Read more 👉 https://trey.io/nb3z3t

#Python

I'm looking for companies and systems that have been running in production for some time and use Django as their main framework for a presentation I'll be giving soon at an event. No need to be open source. I'd like to better understand what kind of applications people are building and maintaining lately ... #python #django

📰 Issue 338: Django 6.1 alpha 1 released

https://django-news.com/archive/issue-338-django-61-alpha-1-released/

#Python #Django #DjangoNews

This afternoon I had the honor (and honestly a lot of fun) recording an episode of @talkpython with @mkennedy 🎙️

We met last week at @pycon 2026 in Long Beach after my talk "AI-Assisted Contributions and Maintainer Load", and he invited me to continue the conversation on the podcast I’ve listened to for years 🎧

At the end we even had to take a screenshot together because we couldn’t take a proper selfie 📸😂

Live recording here: https://www.youtube.com/watch?v=1RJ1kkpTdow

#Python #TalkPython #PyCon #PyConUS #AI

Alt...

A screenshot of me and Michael Kennedy after the recording of our episode of Talk Python

Python Tip #142 (of 365):

Be specific when handling exceptions

Unless you're specifically trying to catch all possible exceptions (often for the purpose of logging them) I HIGHLY recommend being as specific as possible when handling exceptions.

In your "except" block, catch only the specific types of exceptions you intend to handle.

🧵 (1/2)

#Python #DailyPythonTip

“The _ variable (if not deliberately set) will hold the value of the previously run statement, if there is one:”

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

#Python

Little change we just made to the https://docs.python.org/3/ homepage:

The table on the front is no longer an HTML <table>, but <ul> lists with CSS to make it a grid.

That's because a <table> should be used for tabular data and not layout.

This improves accessibility, and also looks better as a list on mobile instead of a squashed table (compare https://docs.python.org/3.12/).

https://dequeuniversity.com/rules/axe/4.1/layout-table

#Python #docs #table #accessibility #a11y

Python Tip #139 (of 365):

Use assert statements for yourself but exceptions for your users.

And "users" INCLUDES other Python programmers who are using your code function/class/etc.

When you need to ensure a precondition is met, start with assert:

assert len(character) == 1

If that condition is possible in real code, graduate to "if" with "raise":

if len(character) != 1:
raise ValueError("'character' must be a string of length 1")

🧵 (1/2)

#Python #DailyPythonTip

Python Tip #141 (of 365):

Don't use bare "except" clauses

Instead of this:

try: ...
except: ...

Do this:

try: ...
except Exception: ...

Or this:

try: ...
except BaseException: ...

If you need to catch EVERY exception either use:

1. "except Exception" (excludes system-exiting exceptions)
2. "except BaseException" carefully (catches system-exiting ones too)

Note: BaseException will catch the exception raised by the user hitting Ctrl+C as well as sys.exit calls.

#Python #DailyPythonTip

Hey, Mastodon! My team at Scribd is hiring a Senior Backend Engineer. #RubyonRails & #Python onto the Publisher Content Management team.

#GetFediHired #FediHire

https://jobs.ashbyhq.com/ScribdInc/df3f9e47-6df4-4ae6-be4a-cba1de5a36de?utm_source=JaP91bA8Dv

Python 3.15 apparently includes symmetric difference support for collections.Counter.

It's a niche feature but it's one I've needed in real code before (albeit only once so far).

This apparently happened because I started a Discourse thread about it.

Requesting a feature can serve as validation that at least one other person has thought of it and wanted it in real code. It apparently did in my case!

https://github.com/python/cpython/issues/138682

#Python

gh-profiler 0.5.1 includes a number of bug fixes and small updates: better formatting, don't include private activity when profiling yourself, avoid yellow flags for having a small number of identical issues, support Python 3.10.

If you know someone is doing OSS in good faith and profiling them shows yellow or red flags, please consider opening an issue. It will take a little while to settle on appropriate criteria and thresholds.

#Python #OpenSource

https://github.com/ehmatthes/gh-profiler/issues

@pycon US 2026 has come to a close, and PSF Board & Staff hearts are full with #Python community love! Thanks to every single one of you who organized, volunteered, presented, attended, & sponsored 🐍🫶 #PyConUS

(1/3)

The guidelines for using AI tools when contributing to CPython has just been updated. Must read whether you're an existing or aspiring contributor.

tl;dr: you're still responsible for what you submit.

Tell everybody you know!

https://devguide.python.org/getting-started/ai-tools/
#Python

Python Tip #140 (of 365):

Embrace EAFP (it's Easier to Ask Forgiveness than Permission) in Python

This is in contrast to Look Before You Leap, which we DO use, but a bit less often than in many other languages.

EAFP: https://pym.dev/terms/#EAFP
LBYL: https://pym.dev/terms/#LBYL

We use EAFP more often in Python because it makes duck typing easier. Instead of trying to ask whether seems to be a duck, we just treat it like it is and handle the exception if it isn't.

🧵 (1/3)

#Python #DailyPythonTip

Django 6.1a1 is out 🎉 💚 I'm really happy and proud that database-level delete options for ForeignKey.on_delete (which we implemented during Django on the Med 🏖️ ) are one of the highlights of this release 💪 🤝 #django #djangoonthemed #sprint #python

https://www.djangoproject.com/weblog/2026/may/20/django-61-alpha-1-released/

My employer just announced a "strategic partnership" with Anthropic so I think it's time to try and get #FediHired. I'm a software engineer with 20 years of experience. I consider myself a #Python genralist and also have experience in embedded C (though I haven't done much C in the past few years).

And by "overwhelming" I mean: that one tag contributes over a hundred posts per day to my feed. Maybe that’s not overwhelming for you, but along with everything else, for me it is. #Python

I follow the #Python tag, and that alone makes my feed overwhelming. I do not yet have a strategy for narrowing it down to only the most valuable content. Suggestions, of course, welcomed!

RE: https://mastodon.social/@jonafato/116606614638510514

It only takes an email with a paragraph or two!

#Python #PSFFellows

Maybe you'll be my new boss? Come work for #Shure doing #FPGA #modem development in our #Wireless lab.

I've been here 20 years. It's not bad. Ask me anything.

https://careersus-shure.icims.com/jobs/4766/engineer-staff-managing%2c-fpga/job?mode=view

Put down my name and I'll get a referral bonus.

#engineering #management #python #verilog #vhdl #proaudio #job #jobs #getfedihired #fedijobs #jobsearch #fedihire #illinois #chicago #askmeanything

Alt...

Shure SM58, so you stop scrolling.

Python Tip #139 (of 365):

Use assert statements for yourself but exceptions for your users.

And "users" INCLUDES other Python programmers who are using your code function/class/etc.

When you need to ensure a precondition is met, start with assert:

assert len(character) == 1

If that condition is possible in real code, graduate to "if" with "raise":

if len(character) != 1:
raise ValueError("'character' must be a string of length 1")

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#Python #DailyPythonTip

Just arrived back home after a long and tiring trip ✈️

But it was absolutely worth it. PyCon US 2026 was an intense week full of talks, keynotes, hallway track conversations, and so many encounters with people from the community.

As always, the best part of conferences for me is the people and the chance to create more connections around open source and Python.

Thanks everyone 💚
Hope to see some of you at PyCon Italia 🙂

#PyCon #PyConUS #Python #Django

Meanwhile, on the Python/Django side of life… Over the past few evenings I’ve made numerous updates and bug fixes to my reusable, pluggable, multi-user/multi-group task assignment system for Django. Live on the demo site and installable now. Hope it’s useful!

https://django-todo.org/

#python #django

Python Tip #138 (of 365):

Use try-except to see whether a particular import exists

Need to see whether a third-party library is installed or whether a newer standard library module or feature exists?

You can attempt an import and catch an ImportError to fallback to the "apparently it's not available" path.

For example, if you customize the color scheme of your Python 3.14 REPL, in your PYTHONSTARTUP file you might have something like this...

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#Python #DailyPythonTip

Alt...

try: import _colorize except ImportError: pass # Python 3.13 and below else: solarized_light_theme = _colorize.default_theme.copy_with(...) _colorize.set_theme(solarized_light_theme)

@webknjaz @MaggieFero And here's the video of the EuroPython keynote from Antarctica in 2018!

"White Mars: living far away from any form of life"

https://www.youtube.com/watch?v=9s0AUlyIbUU
#EuroPython #Python #Antarctica