rust-cpython

Rust <-> Python bindings

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9Mentions

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REPOSITORY AT A GLANCE

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What it is

Rust <-> Python bindings

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

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This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 6:01:08 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year9 dated mentions

Observed mentions: 2015-05-27 12:45:53 UTC to 2020-04-18 09:37:28 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

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Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2015	2015-01-01 00:00:00 UTC	2016-01-01 00:00:00 UTC	2	1	1
2016	2016-01-01 00:00:00 UTC	2017-01-01 00:00:00 UTC	2	0	2
2017	2017-01-01 00:00:00 UTC	2018-01-01 00:00:00 UTC	1	0	1
2018	2018-01-01 00:00:00 UTC	2019-01-01 00:00:00 UTC	3	0	3
2019	2019-01-01 00:00:00 UTC	2020-01-01 00:00:00 UTC	0	0	0
2020	2020-01-01 00:00:00 UTC	2021-01-01 00:00:00 UTC	1	0	1

What Hacker News says

3 sources

gpm·Aug 21, 2018

The rust library interfacing with python is https://github.com/dgrunwald/rust-cpython This library understand things like python arrays, objects, etc. and provides nice rust interfaces to them. Basically I just have to write a macro that specifies what functions I'm exposing to python, and other then that I'm writing normal rust. On the python side I'm importing them and calling them like any other python library. The build system is https://github.com/PyO3/setuptools-rust (which is linked at the bottom of the above readme).

In Parallel Programming with Python

deathanatos·Feb 7, 2018

I agree with some of this, such as, > Python, it is slow as molasses. I don’t mean slower in the sense of “wait a couple of seconds”, I mean “wait several hours instead of 2 minutes.” Python can be multiple orders of magnitude slower than the equivalent in C/C++/Rust, but, > more cores (which Python cannot easily take advantage of) Python's multiprocessing makes launching new processes (which can take advantage of more cores) pretty much as easy as launching threads. But as a developer, I am frustrated by a lot of the things people believe are options. They are options, but … they're hard to use, and hard to take advantage of. * Writing a Python extension requires dropping down to C, which has so many foot-guns, I'd like to delay doing so as long as absolutely possible. Even then, you might not be able to win back that much performance, i

Read the rest

f most of your time is spent manipulating Python objects. Programmers, in my experience, also vastly overestimate their ability to write correct C. * Cython can compile Python to "C", but in Python 2 (which I am alas stuck with, despite my will; someday…), has a bug that miscompiles code dealing with metaclasses. Worse still, the latest version of six will trigger this bug. (The Cython developers do not consider this — Cython's compiled version of code behaving differently from Python and CPython — a bug.) * rust-cpython is theoretically great, but has a bug on OS X that causes aborts (it erroneously links against the Python binary, I think, and this causes issues w/ virtual environments, where a different binary ends up getting used. I don't think this effects Linux, but I need to support OS X.) (Throw in the enormous amount of time that I spend debugging object of type NoneType has no attribute "static_typing", and the amount of time that I spend wonder "what type is this variable supposed to be? and working it out by reverse engineering the code, and I honestly wonder if Python is actually "faster".) [1]: https://github.com/dgrunwald/rust-cpython/issues/59

In Python’s Weak Performance Matters

deathanatos·Feb 7, 2018

PyO3 is a fork of rust-cpython, which has a nasty abort issue[1] which is unfortunately a show-stopper for me. It isn't clear to me if PyO3 is also affected by this issue. [1]: https://github.com/dgrunwald/rust-cpython/issues/59

In Python’s Weak Performance Matters