spaday

Build reactive web-component UIs configured in Python, executed in the browser.

Overview

Construct a UI as a tree of typed Python components from opt-in packages or any library that ships a Custom Elements Manifest. Attach behavior as declarative data: an action DSL (toggle a prop, send a model edit, call an endpoint) and reactive bindings (a control two-way-bound to a state field, or a prop computed from others). spaday's JavaScript runtime renders the tree to real web components and interprets that behavior client-side — so a toggle or a derived value updates with no round-trip to Python.

That UI state is a transports model, so it syncs over any connection (WebSocket, SSE, Jupyter comm) and any codec; the same tree drops into a web app or a Jupyter notebook unchanged.

Like transports, spaday is a Rust core with thin bindings: the component tree, the diff engine, the CEM parser, the action interpreter, and the reactive engine live in Rust and compile to PyO3 (Python authors the tree) and wasm (the browser runs it). One core, two bindings.

from spaday import Widget, element

# a checkbox two-way-bound to a state field, rendered in a Jupyter cell
ui = element("input", type="checkbox").bind("checked", "on", mode="two-way")
w = Widget(ui, state={"on": True})
w  # flip the switch → w.state["on"] flips in Python; set w.state → the switch follows

Install

pip install spaday            # core: author + serialize component trees
pip install "spaday[widget]"  # + the Jupyter / anywidget host

Component ecosystem

Install only the integrations an application uses. Each package provides typed Python components and registers its browser assets with spaday:

spaday-trees — virtualized project and repository trees from Pierre.
spaday-spectrum — Adobe Spectrum Web Components.
spaday-perspective — live Perspective workspaces and datagrids.
spaday-webawesome — typed WebAwesome catalog, forms, and tabs.
spaday-lightweight-charts — reactive TradingView Lightweight Charts.
spaday-dagre — interactive directed-graph rendering with dagre layout.
spaday-regular-layout — serializable resizable panel layouts.
spaday-regular-table — viewport-virtualized high-performance data tables.
spaday-studio — AI-native visual development environment.

Select an installed integration by its entry-point name, for example serve(page, packages=["trees"]).

Documentation

Tutorial — build your first interactive UI, step by step (in a notebook).
How-to guides — author a component tree, add behavior and reactivity, serve and embed an app, use it in a notebook, run Python UI logic in Pyodide, sync to a server over transports, wrap an imperative JS library, generate typed classes from a manifest.
API reference — the Python surface.
How spaday works — the architecture and the reasoning behind it.

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

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

spaday-0.7.7.tar.gz (1.2 MB view details)

Uploaded Aug 27, 2026 Source

Built Distributions

If you're not sure about the file name format, learn more about wheel file names.

The dropdown lists show the available interpreters, ABIs, and platforms. Enable javascript to be able to filter the list of wheel files.

spaday-0.7.7-cp314-cp314-pyemscripten_2026_0_wasm32.whl (1.3 MB view details)

Uploaded Aug 27, 2026 CPython 3.14PyEmscripten 2026.0 wasm32

spaday-0.7.7-cp311-abi3-win_amd64.whl (3.5 MB view details)

Uploaded Aug 27, 2026 CPython 3.11+Windows x86-64

spaday-0.7.7-cp311-abi3-manylinux_2_28_x86_64.whl (1.6 MB view details)

Uploaded Aug 27, 2026 CPython 3.11+manylinux: glibc 2.28+ x86-64

spaday-0.7.7-cp311-abi3-manylinux_2_28_aarch64.whl (1.6 MB view details)

Uploaded Aug 27, 2026 CPython 3.11+manylinux: glibc 2.28+ ARM64

spaday-0.7.7-cp311-abi3-macosx_11_0_arm64.whl (1.6 MB view details)

Uploaded Aug 27, 2026 CPython 3.11+macOS 11.0+ ARM64

File details

Details for the file spaday-0.7.7.tar.gz.

File metadata

Download URL: spaday-0.7.7.tar.gz
Upload date: Aug 27, 2026
Size: 1.2 MB
Tags: Source
Uploaded using Trusted Publishing? No
Uploaded via: twine/7.0.0 CPython/3.12.13

File hashes

Hashes for spaday-0.7.7.tar.gz
Algorithm	Hash digest
SHA256	`d113623b90fd7a53ecd20be6477d870f885279bd81221e983b1b588216f043a4`
MD5	`82d892170b2fc0aef7afe7726d74ca92`
BLAKE2b-256	`cdf13d4058801cb06eeca07eea97493c78e06377a6c5d3b3f782e6661cfb8327`

See more details on using hashes here.

File details

Details for the file spaday-0.7.7-cp314-cp314-pyemscripten_2026_0_wasm32.whl.

File metadata

Download URL: spaday-0.7.7-cp314-cp314-pyemscripten_2026_0_wasm32.whl
Upload date: Aug 27, 2026
Size: 1.3 MB
Tags: CPython 3.14, PyEmscripten 2026.0 wasm32
Uploaded using Trusted Publishing? No
Uploaded via: twine/7.0.0 CPython/3.12.13

File hashes

Hashes for spaday-0.7.7-cp314-cp314-pyemscripten_2026_0_wasm32.whl
Algorithm	Hash digest
SHA256	`76f4442b445d70c001d9a0d859cc83c03916eb616b9b6eab67e3005a29ec4154`
MD5	`17fd47d174fabace4b5c66a739a4f4a4`
BLAKE2b-256	`939948f77f24e4b34085b45d52f49fcd9cc8a0e5156cde496efbeb0566dc35d8`

See more details on using hashes here.

File details

Details for the file spaday-0.7.7-cp311-abi3-win_amd64.whl.

File metadata

Download URL: spaday-0.7.7-cp311-abi3-win_amd64.whl
Upload date: Aug 27, 2026
Size: 3.5 MB
Tags: CPython 3.11+, Windows x86-64
Uploaded using Trusted Publishing? No
Uploaded via: twine/7.0.0 CPython/3.12.13

File hashes

Hashes for spaday-0.7.7-cp311-abi3-win_amd64.whl
Algorithm	Hash digest
SHA256	`7aa858adcdc3ef5ce8b4a23aa5c02b2bf9b3c36f8bf16de6bb7020860a58928e`
MD5	`23e29b7cc485d8ae7d0ece92888babfa`
BLAKE2b-256	`c8d14e82d7d204c9ae46122b93f1d077e913c7b3698a9e34e97a6a4280a51937`

See more details on using hashes here.

File details

Details for the file spaday-0.7.7-cp311-abi3-manylinux_2_28_x86_64.whl.

File metadata

Download URL: spaday-0.7.7-cp311-abi3-manylinux_2_28_x86_64.whl
Upload date: Aug 27, 2026
Size: 1.6 MB
Tags: CPython 3.11+, manylinux: glibc 2.28+ x86-64
Uploaded using Trusted Publishing? No
Uploaded via: twine/7.0.0 CPython/3.12.13

File hashes

Hashes for spaday-0.7.7-cp311-abi3-manylinux_2_28_x86_64.whl
Algorithm	Hash digest
SHA256	`076deb8b72f99f8f378855421deadb86bbcec361db65de9523ae936f5cce350f`
MD5	`41adbec0fdd2bf3bfdd3ec7d839fa8ba`
BLAKE2b-256	`b28c6a77b1876b17c2e00047328f98cbee22641f444f8a9315af4984fd51bc12`

See more details on using hashes here.

File details

Details for the file spaday-0.7.7-cp311-abi3-manylinux_2_28_aarch64.whl.

File metadata

Download URL: spaday-0.7.7-cp311-abi3-manylinux_2_28_aarch64.whl
Upload date: Aug 27, 2026
Size: 1.6 MB
Tags: CPython 3.11+, manylinux: glibc 2.28+ ARM64
Uploaded using Trusted Publishing? No
Uploaded via: twine/7.0.0 CPython/3.12.13

File hashes

Hashes for spaday-0.7.7-cp311-abi3-manylinux_2_28_aarch64.whl
Algorithm	Hash digest
SHA256	`8ef231fb57cbb4bd5e868d99c631285226fab98ba79ca0fd93444705957470fc`
MD5	`1a46dcc3ce131dadc7ebad4a2162914c`
BLAKE2b-256	`47a45d191730127269c3e8b9b9708ce228ce8418e6f9f2e17625c382d7c615e3`

See more details on using hashes here.

File details

Details for the file spaday-0.7.7-cp311-abi3-macosx_11_0_arm64.whl.

File metadata

Download URL: spaday-0.7.7-cp311-abi3-macosx_11_0_arm64.whl
Upload date: Aug 27, 2026
Size: 1.6 MB
Tags: CPython 3.11+, macOS 11.0+ ARM64
Uploaded using Trusted Publishing? No
Uploaded via: twine/7.0.0 CPython/3.12.13

File hashes

Hashes for spaday-0.7.7-cp311-abi3-macosx_11_0_arm64.whl
Algorithm	Hash digest
SHA256	`0e66101035bc721ad00b8018d8a84c2191797dad9521da35a218af57c2fe47ee`
MD5	`0f8c7a2dedbf1ac8066b0f11f277b284`
BLAKE2b-256	`6066ebe51bf7a7b9ad00c29aad69e76e888247826aefd6999edb91c785c940bb`