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stpyv8
C++2025–2025
cloudflare / stpyv8 · Archived

stpyv8

Python 3 and JavaScript interoperability. Successor To PyV8 (https://github.com/flier/pyv8)

2Distinct people
2Mentions
0Explicit recommenders
541GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Python 3 and JavaScript interoperability. Successor To PyV8 (https://github.com/flier/pyv8)

GitHub

Where it is used

No documented product use has been verified yet.

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 hour2 dated mentions

Observed mentions: 2025-12-23 23:26:17 UTC to 2025-12-23 23:51:30 UTC.

0122025-12-23 23:00:00 UTC to 2025-12-24 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 commentsDec 23, 23:00

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC. One observed period does not establish a trend.

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
Dec 23, 23:002025-12-23 23:00:00 UTC2025-12-24 00:00:00 UTC202

What Hacker News says

2 sources
... whoa, I don't know how I missed it but I hadn't seen STPyV8 before. I'd seen PyV8 and ruled it out as very unmaintained. One of my requirements for a sandbox is that it needs to me maintained by a team of professionals who are running a multi-million dollar business on it. Cloudflare certainly count! I wonder what they use STPyV8 for themselves? ... on closer inspection it doesn't seem to have the feature I care most about: the ability to constrain memory usage (see comment here https://github.com/cloudflare/stpyv8/blob/57e881c7fbe178c598...) - and there's no built-in support for time limits either, you have to cancel tasks from a separate thread: https://github.com/cloudflare/stpyv8/issues/112 PythonMonkey looks promising too: the documentation says "MVP as of September 2024" so clearly it's intended to be stable for production use a
Read the rest
t this point.
In Fabrice Bellard Releases MicroQuickJS
Is it though? I have not personally used these libraries, but a cursory google search reveals several options: - cloudflare/STPyV8: [0] From cloudflare, intended for executing untrusted code. - Pythonmonkey: [1] Embeds spidermonkey. Not clearly security focused, but sandboxing untrusted code is literally the point of browser js engines. It's a little less clear how you would do this from node, but the v8 embedding instructions should work https://v8.dev/docs/embed even if nodejs is already a copy of v8. [0]: https://github.com/cloudflare/stpyv8 [1]: https://docs.pythonmonkey.io
In Fabrice Bellard Releases MicroQuickJS

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