05_dash_05.py

import dash
import dash_html_components as html
import dash_core_components as dcc
from dash.dependencies import Input, Output

app = dash.Dash()

app.layout = html.Div([
    dcc.Input(
        id='my-id',
        value='Initial Text',
        type='text'
    ),
    html.Div(id='my-div')
])

@app.callback(Output(
    component_id='my-div', 
    component_property='children'),
    [Input(
        component_id='my-id', 
        component_property='value'
    )])

def update_output_div(input_value):
    return "You entered : {}".format(input_value)


if __name__ == '__main__':
    app.run_server()