dash-fn-form

Introspection-based UI engine for Plotly Dash — transform type-hinted Python functions into reactive Dash forms.

Installation

pip install dash-fn-form

Most users should install dash-interact instead, which includes this package and adds a convenience page API.

Usage

from dash import Dash, html
from dash_fn_form import build_fn_panel

def sine_wave(amplitude: float = 1.0, frequency: float = 2.0):
    import numpy as np, plotly.graph_objects as go
    x = np.linspace(0, 6 * np.pi, 600)
    return go.Figure(go.Scatter(x=x, y=amplitude * np.sin(frequency * x)))

app = Dash(__name__)
app.layout = html.Div([build_fn_panel(sine_wave)])
app.run(debug=True)

build_fn_panel inspects the function signature and builds a form with matching controls. The return value is rendered automatically.

Type mapping

Field customization

from dash_fn_form import Field

form = FnForm("my_form", my_fn, title=Field(label="Title", col_span=2))

License

MIT