Library that allows OCaml programs to interact with Python modules and objects. The library also provides low-level bindings to the Python C API.

This library is an alternative to pycaml which is no longer maintained. The Pycaml module provides a signature close to pycaml, to ease migration of code to this library.

Unix-specific extensions to some of the modules defined in core and core_kernel.

This extension provides a syntax for string interpolation.

This package is a line-reading library for OCaml that aims to replace readline.

CUDF is a format for describing upgrade scenarios in package-based software distributions.

Ignore Jane Street specific instrumentation extensions from internal PPXs or compiler features not yet upstreamed.

Crowbar is a library for testing code, combining QuickCheck-style property-based testing and the magical bug-finding powers of afl-fuzz.

This library adds new functions to OCaml standard library modules, modifies some functions in order to get better performances or safety (tail-recursive) and also provides new modules which should be useful for day to day programming.

This package provides a duration is represented in nanoseconds as an unsigned 64 bit integer. This has a range of up to 584 years. Functions provided check the input and raise on negative or out of bound input.

The opam monorepo plugin provides a convenient interface to bridge the opam package manager with having a local copy of all the source code required to build a project using the dune build tool.

Base is a complete and portable alternative to the OCaml standard library. It provides all standard functionalities one would expect from a language standard library. It uses consistent conventions across all of its module.

Base aims to be usable in any context. As a result system dependent features such as I/O are not offered by Base. They are instead provided by companion libraries such as ocaml-stdio.

This package expands @disable_unused_warnings into @warning "-20-26-32-33-34-35-36-37-38-39-60-66-67"

This package is a no-op ppx rewriter. It is used as a lint tool to enforce some coding conventions across all Jane Street packages.

HeVeA is a LaTeX to HTML translator that generates modern HTML 5. It is written in Objective Caml.

GSL-OCaml is an interface to the GNU scientific library (GSL) for the OCaml language.

Bisect_ppx helps you test thoroughly. It is a small preprocessor that inserts instrumentation at places in your code, such as if-then-else and match expressions. After you run tests, Bisect_ppx gives a nice HTML report showing which places were visited and which were missed.

Usage is simple - add package bisect_ppx when building tests, run your tests, then run the Bisect_ppx report tool on the generated visitation files.

Ppx_yojson_conv_lib is the runtime library used by ppx_yojson_conv, a ppx rewriter that can be used to convert ocaml types to a Yojson.Safe value.

Unix-related dependencies for things like system calls and threads. Using these, it hooks the Async_kernel scheduler up to either epoll or select, depending on availability, and manages a thread pool that blocking system calls run in.

Dose3 is a framework made of several OCaml libraries for managing distribution packages and their dependencies. Though not tied to any particular distribution, dose3 constitutes a pool of libraries which enable analyzing packages coming from various distributions. Besides basic functionalities for querying and setting package properties, dose3 also implements algorithms for solving more complex problems such as monitoring package evolutions, correct and complete dependency resolution and repository-wide uninstallability checks.

This package provides types and operations over dates and times.

Uuidm is an OCaml module implementing 128 bits universally unique identifiers (UUIDs) version 3, 5 (named based with MD5, SHA-1 hashing) and 4 (random based) according to RFC 4122.

OCamlify creates OCaml source code by including whole files into OCaml string or string list. The code generated can be compiled as a standard OCaml file. It allows embedding external resources as OCaml code.

Library to perform parallel fold or map taking advantage of multiple core architectures for OCaml programs. Drop-in replacement for these List operations are provided:

• List.map -> parmap

• List.map -> parfold

• List.mapfold -> parmapfold

Also it allows specifying the number of cores to use with the optional parameter ncores.

OCaml-Num contains the legacy Num library for arbitrary-precision integer and rational arithmetic that used to be part of the OCaml core distribution.