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Articles and videos contributed by both experts, companies and passionate developers from the OCaml community. From in-depth technical articles, project highlights, community news, or insights into Open Source projects, the OCaml Planet RSS feed aggregator has something for everyone.

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Filtering by: Author: Jane Street Tech Blog Keyword: python Clear all

Using OxCaml to implement type-safe reference counting between OCaml and Python

Jane Street is known for being an OCaml shop, but for years now Python has been our second major programming language, acting as the primary tool for data an...

arg count decref my_list obj object pyocaml python reference res

15 Jun 2026

Jane Street Tech Blog

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Building reproducible Python environments with XARs

Our traders and researchers love Python for its agility and for its hugeopen-source ecosystem, especially when it comes to machine learning. Butthe heavy use...

async conda environment environments nfs nightly notebooks python xar xars

14 Apr 2023

Jane Street Tech Blog

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Using Python and OCaml in the same Jupyter notebook

The cover image is based on Jupiter family by NASA/JPL.

applicative approx_pi jupyter notebook ppx_let ppx_python pyml python toploop web development

16 Dec 2019

Jane Street Tech Blog

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Playing Atari Games with OCaml and Deep Reinforcement Learning

In a previous blog postwe detailed how we used OCaml to reproduce some classical deep-learning resultsthat would usually be implemented in Python. Here we wi...

classical deep-learning detailed experiments implemented learning python reinforcement reproduce usually

02 Feb 2019

Jane Street Tech Blog

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