hedron-notebook
Server-side notebook preview helper for Hedron.
Run a normal Hedron ASGI app from an authoring notebook with inline iframe and
external-link modes. Distinct from the browser-Python / JupyterLite sandbox in
hedron-extras. Install as hedron-notebook or via hedron[notebook].
Package maturity: Experimental Alpha (0.1.x) · pin >=0.1.0,<0.2 and expect churn
Default guidance is localhost-only development. Hosted or publicly reachable hosts raise an explicit warning. This package is not a Supported production server.
Install
pip install "hedron-notebook>=0.1.0,<0.2"
# or
uv add "hedron-notebook>=0.1.0,<0.2"
# via flagship:
pip install "hedron[notebook]>=0.1.0,<0.2"
Requires Python 3.11–3.14.
Optional server extra (uvicorn):
pip install "hedron-notebook[server]>=0.1.0,<0.2"
Quick start
from hedron import Hedron, Page, Text
from hedron_notebook import start_preview
app = Hedron(
title="Notebook demo",
security="standard",
session_secret="dev-only",
explorer="off",
)
@app.page("/")
def home() -> Page:
return Page(Text("Hello from a notebook preview"), title="Demo")
preview = start_preview(app)
print(preview.url)
# In a Jupyter cell:
# display HTML with preview.iframe_html()
preview.shutdown()
Public API
| Symbol | Role |
|---|---|
start_preview(app) |
Start a local preview server for an ASGI app |
NotebookPreview |
Handle with .url, .iframe_html(), .shutdown() |
Links
License
MIT. See LICENSE.
1 maintainer
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