Using Lets-plot chart in Shiny

[Boadzie]

Is possible to use lets-plot in shiny? Lets-plot is an interactive version of the grammar of graphic in Python.

[cpsievert]

Here's a more minimal version using Shiny Express, and the more official .to_html() method:

import lets_plot as lp
import pandas as pd

from shiny.express import input, render, ui

datasets = {
    "iris": {
        "name": "Iris",
        "url": "https://raw.githubusercontent.com/JetBrains/lets-plot-docs/master/data/iris.csv",
    },
    "mpg": {
        "name": "Mpg",
        "url": "https://raw.githubusercontent.com/JetBrains/lets-plot-docs/master/data/mpg.csv",
    },
}

with ui.sidebar():
    ui.input_selectize(
        "dataset", "Dataset", {k: v.get("name") for k, v in datasets.items()}
    )


@render.ui
def letsplot():
    selection = input.dataset()
    df = pd.read_csv(datasets[selection]["url"])
    if selection == "iris":
        p = (
            lp.ggplot(df)
            + lp.geom_point(
                lp.aes("petal_length", "petal_width", color="species"), size=5
            )
            + lp.ggsize(1000, 500)
        )
    elif selection == "mpg":
        p = (
            lp.ggplot(df, lp.aes("displ", "cty", fill="drv", size="hwy"))
            + lp.geom_point(shape=21, color="white")
            + lp.scale_size(range=[5, 15], breaks=[15, 40])
            + lp.ggsize(1000, 500)
        )
    else:
        raise ValueError(f"{selection=} is not valid.")

    return ui.HTML(p.to_html(iframe=True))

[Boadzie]

This works great, thanks!