transports

Move typed models across any wire as incremental patches.

Define a model once as a pydantic model, stdlib dataclass, or msgspec struct. Host it in Python, mutate it normally, and send only the patch needed to update a remote mirror. The same Rust core drives Python (PyO3) and JavaScript (wasm), so both sides use the same Value, diff, patch, and codec machinery.

import transports
from pydantic import BaseModel

class Device(BaseModel):
    name: str
    on: bool = False

session = transports.Session()
lamp = Device(name="lamp")
model_id = session.host(lamp)

lamp.on = True
print(session.drain())
# [(1, {'rev': 1, 'ops': [{'Set': {'path': [{'Key': 'on'}], 'value': {'Bool': True}}}]})]

Install

pip install transports
pip install "transports[connections]"   # WebSocket server/client adapters
pip install "transports[sse]"           # Server-Sent Events adapter
pip install "transports[jupyter]"       # Jupyter comm adapter

Documentation

Tutorial

Quickstart builds one hosted model and mirrors it with the in-process server/client protocol.

How-to guides

Model bridges covers pydantic, dataclasses, msgspec, schemas, and plain JavaScript objects. Connections covers WebSocket, SSE, Jupyter comm, and anywidget adapters. Codecs covers JSON, MessagePack, and custom codecs. Multi-tenancy and sharing covers tenant isolation, shared models, and merge strategies. Pyodide covers building and loading transports in a browser. Benchmarks covers the server fan-out benchmark harness, its scaling knobs, and recording benchmark history with benched.

Reference

API reference lists the Python API. Wire protocol reference describes Value, patch operations, protocol messages, codecs, and model ids.

Explanation

Concepts explains why transports uses incremental patches, server-owned revisions, a shared Rust core, and transport-agnostic adapters.

[!NOTE] This library was generated using copier from the Base Python Project Template repository

Metadata

Release files for transports 0.8.2

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for transports 0.8.2
File	Size	Uploaded
transports-0.8.2.tar.gz	416.6 kB	Aug 27, 2026	Details

Built distributions (wheels)

Table of built distributions (wheels) for transports 0.8.2
File	Interpreter	ABI	Platform	Reset
transports-0.8.2-cp314-cp314-pyemscripten_2026_0_wasm32.whl 543.9 kB Aug 27, 2026	CPython 3.14	CPython 3.14	PyEmscripten 2026.0+ WebAssembly	Details
transports-0.8.2-cp311-abi3-win_amd64.whl 694.1 kB Aug 27, 2026	CPython 3.11	abi3	Windows x86-64	Details
transports-0.8.2-cp311-abi3-manylinux_2_28_x86_64.whl 820.6 kB Aug 27, 2026	CPython 3.11	abi3	Linux glibc 2.28+ x86-64	Details
transports-0.8.2-cp311-abi3-manylinux_2_28_aarch64.whl 792.3 kB Aug 27, 2026	CPython 3.11	abi3	Linux glibc 2.28+ ARM64	Details
transports-0.8.2-cp311-abi3-macosx_11_0_arm64.whl 747.9 kB Aug 27, 2026	CPython 3.11	abi3	macOS 11.0+ ARM64	Details

Total release size: 4.0 MB

Release files / transports-0.8.2.tar.gz

Download URL	transports-0.8.2.tar.gz
Size	416.6 kB
Tags	Source
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Upload date	Aug 27, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.13`

Release files / transports-0.8.2-cp314-cp314-pyemscripten_2026_0_wasm32.whl

Download URL	transports-0.8.2-cp314-cp314-pyemscripten_2026_0_wasm32.whl
Size	543.9 kB
Tags	CPython 3.14 PyEmscripten 2026.0+ WebAssembly
SHA-256 checksum How to use checksums	`2ecee49b12ff9cf7602d618d12a77bbadd147b3b1fb8676111f7c3a2f26208c8`
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Upload date	Aug 27, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.13`

Release files / transports-0.8.2-cp311-abi3-win_amd64.whl

Download URL	transports-0.8.2-cp311-abi3-win_amd64.whl
Size	694.1 kB
Tags	CPython 3.11 Windows x86-64 abi3
SHA-256 checksum How to use checksums	`29783a5e22d0cce6953cc76c577c15dbfcf2e64ccc83104fb67934159b61ce55`
BLAKE2b-256 checksum How to use checksums	`bb9626a60c42ec63c9e4daec5ee1f5ab7e5e042c2fd13ac4fcdf825cd2a04301`
Upload date	Aug 27, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.13`

Release files / transports-0.8.2-cp311-abi3-manylinux_2_28_x86_64.whl

Download URL	transports-0.8.2-cp311-abi3-manylinux_2_28_x86_64.whl
Size	820.6 kB
Tags	CPython 3.11 Linux glibc 2.28+ x86-64 abi3
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BLAKE2b-256 checksum How to use checksums	`38c958fceeff98bd7357e35843b5f62ca171624070c17f788be4f8a7fdc423f5`
Upload date	Aug 27, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.13`

Release files / transports-0.8.2-cp311-abi3-manylinux_2_28_aarch64.whl

Download URL	transports-0.8.2-cp311-abi3-manylinux_2_28_aarch64.whl
Size	792.3 kB
Tags	CPython 3.11 Linux glibc 2.28+ ARM64 abi3
SHA-256 checksum How to use checksums	`62ce9e35fbec5563806defad69b3917a42459556411689412d05251dae96f958`
BLAKE2b-256 checksum How to use checksums	`3e733b0082ee25663c4a6152df51c9f2bad6808fe437aecd279549bd1bc06098`
Upload date	Aug 27, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.13`

Release files / transports-0.8.2-cp311-abi3-macosx_11_0_arm64.whl

Download URL	transports-0.8.2-cp311-abi3-macosx_11_0_arm64.whl
Size	747.9 kB
Tags	CPython 3.11 abi3 macOS 11.0+ ARM64
SHA-256 checksum How to use checksums	`76d20ceeff9c55b9867c96d3e328fc7dbea66704f9e48be412828dced1814ea0`
BLAKE2b-256 checksum How to use checksums	`5aae05ebd54cc43111fb27bb47cd92ba1c3e60ad5870dc096096bf17b6771c5d`
Upload date	Aug 27, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.12.13`