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#cpython

2 posts2 participants0 posts today
Public
danzin

Do you maintain or contribute to a #Python package that includes a C extension? Would you like to run a fuzzer against it?

If so, let me know and I will run it, or help you to get it running.

The fuzzer is #fusil, which generates random code calling into your functions and methods. It's useful to check for crashes on invalid inputs or unexpected call patterns.

It has found about 50 crashes in #CPython, 20 in #PyPy, 6 in #Numpy etc.

#fuzzing #fuzzer #testing
See here:
github.com/devdanzin/fusil/iss

GitHubFuzz C extensions · Issue #37 · devdanzin/fusilBy devdanzin
Public
Charly Coste 🇫🇷

Yesterday someone reported that the recursion limit isn't fully enforced in Python 3.13: discuss.python.org/t/infinite-

Today I accidentally discovered a segmentation fault introduced in Python 3.12: github.com/python/cpython/issu

What a weekend.

Discussions on Python.org · Infinite recursionIn python version 3.13… I noticed the possibility of creating infinite recursion, that is, the stack does not overflow, this could be attributed to optimizing the “tail” recursion, but memory measurements showed that memory is consumed until it runs out. Here is the code for reproducing such a recursion: def foo(depth = None): print(foo.count) foo.count = 1 return foo() foo.count = 1 print(foo()) It is noteworthy that if you remove the default argument, or run this code on vers...
#Python#C#CPython
Continued thread
Public
Hugo van Kemenade

Just released: Python 3.14.0a7 🚀
Just released: Python 3.13.3 🚀🚀
Just released: Python 3.12.10 🚀🚀🚀
Just released: Python 3.11.12 🚀🚀🚀🚀
Just released: Python 3.10.17 🚀🚀🚀🚀🚀
Just released: Python 3.9.22 🚀🚀🚀🚀🚀🚀

Last 3.14 alpha! Less than a month to get new features in before beta!

Last 3.12 bugfix release! Now in security fix only!

And security releases of 3.9-3.11.

Please upgrade 3.9-3.13!

Please test 3.14!

discuss.python.org/t/python-3-

Chart showing Python up to 3.8 are EOL, 3.9-3.12 are security only, 3.13 is bugfix, and 3.14 is the feature branch.
#Python#CPython#release
Public
Olivia A-C

New account, so new #introduction. Let's do it again!

I have a #MastersDegree in #ComputerScience and #ComputerEngineering. I went to #NMU for undergrad and #MSU for my graduate degree. I currently work at #UChicago for the #TMWCenter, which focuses on helping young children acquire language (and therefore other learning skills) faster.

In my spare time, I develop #OpenSourceSoftware such as
- a #SphinxDoc extension that embed #Fediverse comments on your page
- a library to talk to #ManifoldMarkets from native #Python
- a #PredictionMarket manager using the above
- a #transpiler from a subset of Python to #OpenStreetMaps's #OverpassQL
- bug fixes to many other projects, including #mypy, #base58, #attrs, #CPython, & more

I spend a fair bit of my time these days on #MathResearch, specifically into the #ThueMorse Sequence and its extensions.

I'm also a hobbyist editor on OpenStreetMap.

#Demisexual, #transfem, and happily engaged to my #enby sweetheart.

We have two cats: #OpheTheLoaf and #MayalaranTheCat (yes, from #StormlightArchive) See here for more on them!

I speak English fluently, Spanish haltingly, and am trying to learn Chinese

#queer #Chicago

TransFem SpaceOlivia A-C (@LivInTheLookingGlass)These are our cats, #OpheTheLoaf and #MayalaranTheCat. Ophelia was originally my partner's, we live together full time now, and are an integrated family Fun facts about Ophelia: * She is missing a tooth, so her lip sometimes gets stuck open in a cute way * She has an "activation noise" that sounds kinda like a pigeon * She will often do 10/10 loafs, hence the nickname Some facts about Maya: * Her favorite hobby is judging the neighbors * She is very anxious * She has an incredibly dainty play style * She has a series of increasingly ridiculous nicknames: Mayalaran -> Maya -> Mayo -> Aioli -> Au Jus (Follow the hashtags if you want just my cats) #CatsOfMastodon #CatsOfFedi (📎8)
Continued thread
Public
Hugo van Kemenade

Just released: Python 3.14.0a5 🚀

discuss.python.org/t/python-3-

docs.python.org/3.14/whatsnew/

Also recently released!

blurb 2.0.0
cherry-picker 3.5.0
pypistats 1.8.0
PrettyTable 3.13.0 & 3.14.0
tox-dev/action-pre-commit-uv 1.0.2
em-keyboard 5.0.0

Discussions on Python.org · Python 3.14.0 alpha 5Here comes the antepenultimate alpha. https://www.python.org/downloads/release/python-3140a5/ This is an early developer preview of Python 3.14 Major new features of the 3.14 series, compared to 3.13 Python 3.14 is still in development. This release, 3.14.0a5, is the fifth of seven planned alpha releases. Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process. During the alpha phase, features may be added up unti...
#Python#CPython#Python314
Public
Olivia A-C

Oh dang, my #introduction post is waaay out of date now. Let's do it again!

I have a #MastersDegree in #ComputerScience and #ComputerEngineering. I went to #NMU for undergrad and #MSU for my graduate degree. I currently work at #UChicago for the #TMWCenter, which focuses on helping young children acquire language (and therefore other learning skills) faster.

In my spare time, I develop #OpenSourceSoftware such as

I spend a fair bit of my time these days on #MathResearch, specifically into the #ThueMorse Sequence and its extensions.

I'm also a hobbyist editor on OpenStreetMap.

#Demisexual, #transfem, and happily engaged to my #enby sweetheart.

We have two cats: #OpheTheLoaf and #MayalaranTheCat (yes, from #StormlightArchive)

Two cats are by a sliding glass window. The one towards the top of the frame (named Ophelia) is laying on a heat pad and staring at the second cat. The second cat (named Maya) is towards the bottom of the frame. She is sat on the entry rug with her body poked between the blinds on the window, so that she can look outside.
There are two cats in frame, near a very small cat tower. On top of the tower, Ophelia is laying down. Below, in a meercat-like pose, is Maya. She is trying to get a better view of the other cat. They didn't know each other very well at this time.
A gray cat, Maya, is laying on the couch. She is curled up such that her belly and paws are all exposed, though her tail is tucked near her feet. She looks peacefully asleep
A gray/gray-orange cat is laying on a white blanket. Her name is Ophelia, and she has one eye half open, which is a brilliant green-orange. She is very relaxed. You get the faint impression of a person's legs underneath the blanket
#queer#Chicago
Continued thread
Public
Hugo van Kemenade

Just released: blurb 1.3.0 🚀

blurb is the CLI we use for managing CPython's news/changelog entries.

🗞️ Add support for Python 3.13

🗞️ Drop support for Python 3.8

🗞️ Generate digital attestations for PyPI (PEP 740)

🗞️ Allow running blurb test from blurb-* directories by

🗞️ Add version subcommand

🗞️ Generate __version__ at build to avoid slow importlib.metadata

pypi.org/project/blurb/1.3.0/

PyPIblurbCommand-line tool to manage CPython Misc/NEWS.d entries.
#Python#CPython#blurb
Continued thread
Public
Hugo van Kemenade

Just released: Python 3.14.0a1 🚀

discuss.python.org/t/python-3-

🐍 PEP 649: deferred evaluation of annotations

🐍 Improved error messages

🐍 And more!

docs.python.org/3.14/whatsnew/

Discussions on Python.org · Python 3.14.0 alpha 1It’s now time for a new alpha of a new version of Python! This is an early developer preview of Python 3.14 Major new features of the 3.14 series, compared to 3.13 Python 3.14 is still in development. This release, 3.14.0a1 is the first of seven planned alpha releases. Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process. During the alpha phase, features may be added up until the start of the beta phase (2025-...
#Python#CPython#Python314
Public
Hugo van Kemenade

🐍🧪 Python 3.13.0 is due out in October 2024 and work is underway to implement *experimental support* for PEP 703 "Making the Global Interpreter Lock Optional in CPython".

As the Steering Council noted in their acceptance of the PEP, to succeed it's important to have community support.

I wrote a little guide on how you can help test out the beta in your project, and help us find bugs in CPython:

dev.to/hugovk/help-us-test-fre
#python #CPython #python313 #PEP703 #FreeThreaded
#JustDontCallItNoGIL

DEV CommunityHelp us test free-threaded Python without the GILPython 3.13 is due out in October 2024 and work is underway to implement experimental support for PEP...
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