app.py

import dash
from dash import dcc, html, Output, Input
import plotly.express as px
import dash_callback_chain
import yaml
import polars as pl
import os
pl.enable_string_cache(False)

external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']

app = dash.Dash(__name__, prevent_initial_callbacks = 'initial_duplicate', use_pages=True, external_stylesheets=external_stylesheets)

app.layout = html.Div([
    html.H1('Multi-page app with Dash Pages'),
    html.Div([
    html.Div(
        dcc.Link(f"{page['name']}", href=page["path"])
    ) for page in dash.page_registry.values() if page["location"] == "sidebar"
]),
    dash.page_container
])

if __name__ == '__main__':
    app.run(debug=True, use_reloader=True, host='0.0.0.0', port=5000)