Do I see this right that pypy is immortalized in the python3 Docs? :D
![a screenshot from the pyhon3 documentation, argparse. Left: table of contents, right:
```
:et’s show the sort of functionality that we are going to explore in this introductory tutorial by making use of the ls command:
ls
cpython devguide prog.py pypy rm-unused-function.patch
ls pypy
ctypes_configure demo dotviewer include lib_pypy lib-python ...
ls -l
total 20
drwxr-xr-x 19 wena wena 4096 Feb 18 18:51 cpython
drwxr-xr-x 4 wena wena 4096 Feb 8 12:04 devguide
-rwxr-xr-x 1 wena wena 535 Feb 19 00:05 prog.py
drwxr-xr-x 14 wena wena 4096 Feb 7 00:59 pypy
-rw-r--r-- 1 wena wena 741 Feb 18 01:01 rm-unused-function.patch
ls --help
Usage: ls [OPTION]... [FILE]...
List information about the FILEs (the current directory by default).
Sort entries alphabetically if none of -cftuvSUX nor --sort is specified.
...
```](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:tpqbolty4rwsq5ywbqxzoezf/bafkreidc4odtcqzo7k3mqilkscwanvzznuyglzybeauapkzn7d6vaifzoe)
The PyPy Project
@pypyproject.bsky.social
The developers of the PyPy project: a fast, compliant, open source Python interpreter. https://pypy.org/ https://github.com/pypy/pypy
C interpreters underlie many of our most widely used language implementations -- but they're slow. Wouldn't it be great if we could turn them into JIT compiling VMs? This video shows what happens when we do just that to the normal Lua VM (first) and "yklua" (Lua w/JIT, second).
#Autobahn v25.10.2 Released: #WebSocket & #WAMP for Python with Critical Fixes and Enhanced CI/CD, #PyPy Support, Binary Wheels, and native NVX (SIMD vector acceleration) - **📋 Full Announcement:** github.com/crossbario/a... - **🌐 WAMP Protocol:** wamp-proto.org
New blog post by @cfbolz.bsky.social: "How fast can the RPython GC allocate?" pypy.org/posts/2025/0...
How fast can the RPython GC allocate?
While working on a paper about allocation profiling in VMProf I got curious about how quickly the RPython GC can allocate an object. I wrote a small RPython benchmark program to get an idea of the ord
pypy.org
This year's DLS Most Notable Paper award goes to Compiling for Multi-language Task Migration by Marc Feeley The paper is motivated by the challenges of implementing continuations for an uncooperative environment, and worth a read! Congratulations to the author! www.iro.umontreal.ca/~feeley/pape...
"How slow is the tracing interpreter of PyPy's meta-tracing JIT?" cfbolz.de/posts/speed-... Spoiler: for the microbenchmark I tried, the slowdown of the meta-tracing interpreter is about 900x
How slow is the tracing interpreter of PyPy's meta-tracing JIT?
I wanted to investigate the warmup behavior of the PyPy interpreter, so I wrote a somewhat arbitrary microbenchmark: all_results = set() num = int(sys.argv[1]) class A(object): pass def main():
cfbolz.de
We just merged an improvement to the PyPy JIT heap optimizations: type based alias analysis for Python instances. Work was done by @cfbolz.bsky.social and their student Nico Rittinghaus.
nedbatchelder.com/blog/202503/... After nearly two years, I think this is finally ready: coverage․py can use sys.monitoring to more efficiently measure branch coverage.
Faster branch coverage measurement
After nearly two years, I think this is finally ready: coverage.py can use <a rel="external noopener" href="https://docs.python.org/3/library/sys.monitoring.html">sys.monitoring</a> to more efficientl...
nedbatchelder.com
Fast on the heels of the last release, I have published a PyPy v7.3.19 bug-fix release with PyPy2.7, PyPY3.10 and a beta-quality PyPy3.11. Please try it out! The complete release note is at doc.pypy.org/en/latest/re...
PyPy v7.3.19: release of python 2.7, 3.10 and 3.11 beta, released 2025-02-26 — PyPy documentation
doc.pypy.org
New blog post by my excellent master student Christoph Jung: "Low Overhead Allocation Sampling with VMProf in PyPy's GC" pypy.org/posts/2025/0... Hopefully the first in a series about his work on a sampling allocation profiler for PyPy
Since I was now wondering, here's PyPy VS CPython 3.x binary sizes
The PyPy Project@pypyproject.bsky.social · last yr.We don't do this regularly or anything, but every couple of years @cfbolz.bsky.social looks at how the PyPy binary sizes have developed. Looks like an ok balance between occasionally cleaning something up and thereby shrinking the binary; and then slow growth or explicit time/binary-size-tradeoffs.
We don't do this regularly or anything, but every couple of years @cfbolz.bsky.social looks at how the PyPy binary sizes have developed. Looks like an ok balance between occasionally cleaning something up and thereby shrinking the binary; and then slow growth or explicit time/binary-size-tradeoffs.
As a response to these benchmarks, @cfbolz.bsky.social optimized `itertools.islice` for the common case where no step is given, and also for converting large but not very large integers to strings (basically any int that doesn't fit into 64 bits, but is also not really huge, maybe a few words).
The PyPy Project@pypyproject.bsky.social · last yr.Tim Peters benchmarking Python 3.13 vs PyPy on an OEIS sequence program he wrote: discuss.python.org/t/python-3-1... (the results are complicated, on one version Python 3.13 wins, but on others PyPy does).
Tim Peters benchmarking Python 3.13 vs PyPy on an OEIS sequence program he wrote: discuss.python.org/t/python-3-1... (the results are complicated, on one version Python 3.13 wins, but on others PyPy does).
Python 3.13.0 speed
This is a hearty “congratulations!” message. I often tackle a problem inspired by The On-Line Encyclopedia of Integer Sequences (OEIS). Here, sequence A378048: integers k such that k and k**2 together...
discuss.python.org
Here's the blog post about the PyPY 7.3.18 release that came out yesterday. Thanks to @matti-p.bsky.social, our release manager! This the first version with 3.11 support (beta only so far). Two cool other features in the thread below. pypy.org/posts/2025/0...
PyPy v7.3.18 release
PyPy v7.3.18: release of python 2.7, 3.10 and 3.11 beta The PyPy team is proud to release version 7.3.18 of PyPy. This release includes a python 3.11 interpreter. We are labelling it "beta" because it
pypy.org
PyPy 7.3.18, with Python3.11, 3.10, 2.7 is released. See the release note at doc.pypy.org/en/latest/re...
PyPy v7.3.18: release of python 2.7, 3.10 and 3.11 beta, released 2025-02-06 — PyPy documentation
doc.pypy.org