PyAny

PyAny is a Python library that provides a universal, dynamically typed value container designed to simplify working with heterogeneous data and cross-language interoperability. The project defines a PyAny value type that can wrap any Python object and expose a uniform interface for inspection, conversion, and serialization. PyAny values support primitive types, collections, and user-defined objects by using a small protocol that preserves type information when moving data across boundaries.

Core features include a lightweight API for constructing PyAny values from Python objects, retrieving them back into Python types with optional type hints, and serializing to common formats such as JSON, MessagePack, or a compact binary representation. The library aims to minimize overhead, with an optional C extension to accelerate hot paths.

Interoperability is central to PyAny: it provides a bridge between Python and embedded or host environments (such as C/C++, JavaScript, or other runtimes) by converting values to representations that the target environment can consume and back again, with lifecycle management and callbacks where appropriate.

Typical use cases include data ingestion pipelines that transport values across components with varying schemas, testing and mocking where an opaque value is needed, and scripting scenarios that embed multiple runtimes or languages.

Design and licensing: PyAny emphasizes safety through explicit conversion controls and error handling. The project is released under an open-source license and maintained by a community of contributors.

See also: dynamic typing, typing in Python, inter-language interoperability, data serialization.