Dr. Bruce Simpson@bascule "Made you look". Comparative FFI study this AM. I had reason to examine #PyCA #cryptography after reading @filippo and seeing it used #CFFI, not #Cython, and Rust-ified its underlying #OpenSSL API exposure with #C linkage using #Rust #unsafe blocks. Go figure. I just use #libsodium for most things because it ROCKS.
GitRanks
Andrew DalkeNote to self. I have kids who wake at 6.30 for school. I shouldn't program past 22.30, much less 23.30, as it's far too easy to make mistakes while tired.
In this case, what I thought was a fix, didn't work. So I'm back to trying to figure out what's up with getting #cython to build a #python extension class.
Gea-Suan LinCan't figure out how to use #cython to define a reusable #python extension class.
In the .pxd
cdef class CountFingerprint:
cdef:
...
In the .pyx
from . import _typing
def _err(s):
return ValueError(s)
cdef class CountFingerprint:
def to_pandas(...) -> _typing.PDF:
..
raise _get_value_error(..)
cythonize says "Unknown type declaration '_typing.PDF' in annotation, ignoring" and "undeclared name not builtin: _get_err".
I don't get it. Those are defined in the .pyx.
Help?
Leszek#Cython promises to make "writing #C extensions for Python as easy as #Python itself." The reality is: learn C's mental model, express it in Python syntax, and use a separate diagnostic tool to verify.
https://github.com/cemrehancavdar/faster-python-bench/blob/main/docs/cython-minefield.md
https://github.com/cemrehancavdar/faster-python-bench/blob/main/docs/cython-minefield.md
BorgBackup#borgbackup 2.0.0b20 was just released!
There is quite some new stuff and also some fixes, please help with testing the betas!
https://github.com/borgbackup/borg/releases/tag/2.0.0b20
#backup #linux #bsd #macOS #openindiana #haiku #python #cython #borg
Andrii Kuznietsov🐍👨💻 #PythoC — це новий проєкт, який дозволяє використовувати Python як генератор C-коду, пропонуючи більше можливостей і гнучкості, ніж #Cython. Це перший огляд нового інструмента генерації C-коду з #Python, орієнтованого передусім на створення самостійних C-програм.
🔗 https://proit.ua/pythoc-novi-mozhlivosti-ghienieratsiyi-c-kodu/
🔗 https://www.infoworld.com/article/4101101/pythoc-a-new-way-to-generate-c-code-from-python.html
niqDoes anyone know of a good overview how much overhead using ctypes to call functions from a dynamic library adds to #python code instead of building a native extension e.g via #cython #pybind11 or #nanobind ?
A blog post with some statistics would be perfect but just ballpark figures from anyone who knows what they are talking about is fine
Ashwin V. MohananI have officially started working as the training coordinator at #MimerAIF (https://mimer-ai.eu/). What better way to kick things off than a course?! These days I am teaching parts of the #PythonForScicomp course in partnership with @coderefinery and @SciCompAalto.
Tomorrow is the last day of the course, but you can still join!
https://scicomp.aalto.fi/training/scip/python-for-scicomp-2025/
I will be covering the episodes on #Cython and #Packaging.
