Zero Copy Python Packages

flatbuffers

FlatBuffers: Memory Efficient Serialization Library

databento-dbn

Databento Binary Encoding (DBN) - Fast message encoding and storage format for market data

iceoryx2

Eclipse iceoryx2™ - true zero-copy inter-process-communication with a Rust core

pylibheif

High-performance Python bindings for libheif (HEIC/AVIF/JPEG2000) using nanobind. Zero-copy buffer protocol, streaming I/O, Pillow plugin & CLI toolkit.

rypipe

Format- and source-agnostic ingestion framework: a common execution runtime for turning record-oriented data sources into typed columnar data. Rust core, Python bindings; adapters live in separate packages.

fory-compiler

A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.

pyhdb-rs

SAP HANA meets modern Python. Rust-powered driver with zero-copy Arrow, native Polars/pandas support, async pooling. Includes MCP server for AI assistants.

vigilo-stream

Zero-copy multi-modal stream fusion engine for real-time AI pipelines in Python.

dreaming-electric-sheep

Ultra-fast async web framework with Cython radix routing, built-in OpenAPI, SIMD vectorcall support, and battery-included auth.

iocursor

A zero-copy file-like wrapper for Python byte buffers, inspired by Rust's std::io::Cursor.

gst-plugin-iceoryx2

GStreamer iceoryx2 shared-memory zero-copy src/sink with python bindings

minarrow

Fast, minimal, and ergonomic zero-copy Apache Arrow tabular data implementation in Rust, with PyO3, Python bindings, NdArray, XArray, shared-memory and low-latency SIMD for data-engineering and columnar workloads. Bridge to Polars and Arrow-rs over FFI effortlessly.

lightstream-io

Fast data transport : Apache Arrow, Protobuf and Message Pack data on the one stream. Measured faster than Arrow Flight on all open benchmarks. HTTP, TCP, QUIC, Websocket, Webtransport, Stdio, UDS, all interchangeable, with 64-byte SIMD compatibilty maintained over the network and to/from disk via custom Arrow Mmap and Parquet Readers and Writers

dbz-python

Databento Binary Encoding (DBN) - Fast message encoding and storage format for market data

global-buffer

Cross-platform cross-process shared-memory ring buffer

mediaway

High-performance native-first media engine: Zero-Copy paths (GPU/CPU handles), hardware offloading, sans-io mux/demux cores, permissive MIT OR Apache-2.0

mmap-chunker-core

Record-aligned byte-range planning for large immutable files, with zero-copy mmap framing, CLI, and a stable C ABI.

pyroboframes

High-performance ML dataloader for robotics. LeRobot format, hardware-accelerated video decode, MLX arrays. Zero-copy pipeline for Apple Silicon.

tachyon-ipc

Tachyon, IPC/RPC primitive.

dbz-lib

Databento Binary Encoding (DBN) - Fast message encoding and storage format for market data

booblik

Message broker in Kotlin/JVM on an append-only log: partitions, segments and consumer-held offsets, with everything a cluster needs deliberately absent

sulcus

Markdown files are -not- a memory system. SULCUS is a persistent, proactive, intelligent context & memory engine for AI agents. SDKs, integrations, plugins, and tooling are all available for download. Don't hesitate to get in touch if you have any concerns or criticisms.

sulcus-crewai

Markdown files are -not- a memory system. SULCUS is a persistent, proactive, intelligent context & memory engine for AI agents. SDKs, integrations, plugins, and tooling are all available for download. Don't hesitate to get in touch if you have any concerns or criticisms.

faster-api-web

High-performance ASGI framework — drop-in FastAPI replacement. 8.7x faster routing, 9.4x faster JSON, radix tree router, compiled DI, uvloop, msgspec.