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from dash import Dash, dcc, html, Input, Output,callback
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app = Dash(__name__)
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app.layout = html.Div([
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dcc.Dropdown(['NYC', 'MTL', 'SF'], 'NYC', id='demo-dropdown'),
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html.Div(id='dd-output-container')
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])
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@callback(
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Output('dd-output-container', 'children'),
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Input('demo-dropdown', 'value')
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)
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def update_output(value):
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return f'You have selected {value}'
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if __name__ == '__main__':
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#app.run(debug=True)
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app.run(debug=False)
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