HackerReposA FIELD GUIDE TO OPEN SOURCE
ProSponsor the shelf♧ 0
← Back to top all-time
microsoft
Pyjion
C++2016–2021
microsoft / Pyjion · Archived

Pyjion

Pyjion - A JIT for Python based upon CoreCLR

16Distinct people
23Mentions
0Explicit recommenders
1.6KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Pyjion - A JIT for Python based upon CoreCLR

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 1:49:46 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 year23 dated mentions

Observed mentions: 2016-01-11 22:04:32 UTC to 2021-05-13 00:08:04 UTC.

0510152016-01-01 00:00:00 UTC to 2017-01-01 00:00:00 UTC (exclusive): 14 mentions; 3 submissions, 11 comments20162017-01-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments20182019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 4 mentions; 0 submissions, 4 comments2021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2021

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

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20162016-01-01 00:00:00 UTC2017-01-01 00:00:00 UTC14311
20172017-01-01 00:00:00 UTC2018-01-01 00:00:00 UTC202
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC101
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC000
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC404
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC202

What Hacker News says

23 sources
There are articles like https://instagram-engineering.com/dismissing-python-garbage-... which seem to confirm some problems. One of the people involved with this Cinder project was an original author of https://github.com/microsoft/Pyjion (it's now being revamped by a new dev.) Dino had deep .NET/CLR implementation experience and had been the lead for IronPython which I think spawned the interest in perf improvements through Cinder. I hope this effort is more successful for him.
In Cinder: Instagram's performance-oriented fork of CPython
With Pyjion on the way from MS and the Python core devs declaring if it works they'll make the API changes[0] to connect CPython3 to an external JIT like Pyjion changes the game. The window is closing to declare PyPy the successor to CPython2 before Python3 finds a way to steal the thunder and more people migrate from Python to new languages like Go or Python3. PyPy is a fantastic piece of technology that should take the forsaken mantle of Python2 for itself. Just needs a few political moves. PyPy is pure technological innovation. Python3 is pure technological churn and pure politics. You guys deserve the money and fame that will come with being the successor to Python2. Do it and good luck! [0]https://github.com/Microsoft/Pyjion
In C-API Support update
Thanks tanlermin. We are aware of nuitka and in general very excited about the various Turbo options that are showing up for Python. Our own effort is pyjion and we have a talk at PyCon 2016: https://github.com/Microsoft/Pyjion The high order bit is to restructure CPython to enable easy plugging in of various JIT optimizer/codegenerators into the interpreter. Our own attempt will be based on the cross-platform .Net JIT (generating machine code).
In Welcome to the Python Engineering blog

Showing the 15 most recent of 23 sources. Enable JavaScript to search and browse every indexed mention.

MAKE YOURSELF AT HOME

A few shortcuts

/
Search the collection
?
Open this guide
Esc
Close dialogs and navigation

Your saved repositories and interests stay in this browser.