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avinash-mishra/dash_starter.py

Last active August 3, 2018 01:40
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  1. avinash-mishra revised this gist Aug 3, 2018. 1 changed file with 4 additions and 0 deletions.
    4 changes: 4 additions & 0 deletions dash_starter.py
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    """
    Install dependencies before running : https://dash.plot.ly/installation
    """

    import dash
    from dash.dependencies import Input, Output
    import dash_core_components as dcc
  2. avinash-mishra renamed this gist Aug 3, 2018. 1 changed file with 0 additions and 0 deletions.
    0 dash_test.py → dash_starter.py
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    File renamed without changes.
  3. avinash-mishra created this gist Aug 3, 2018.
    46 changes: 46 additions & 0 deletions dash_test.py
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    import dash
    from dash.dependencies import Input, Output
    import dash_core_components as dcc
    import dash_html_components as html
    import pandas as pd
    pd.core.common.is_list_like = pd.api.types.is_list_like
    from pandas_datareader import data as web
    from datetime import datetime as dt

    app = dash.Dash('Hello World')

    app.layout = html.Div([
    dcc.Dropdown(
    id='my-dropdown',
    options=[
    {'label': 'Coke', 'value': 'COKE'},
    {'label': 'Tesla', 'value': 'TSLA'},
    {'label': 'Apple', 'value': 'AAPL'}
    ],
    value='COKE'
    ),
    dcc.Graph(id='my-graph')
    ], style={'width': '500'})


    @app.callback(Output('my-graph', 'figure'), [Input('my-dropdown', 'value')])
    def update_graph(selected_dropdown_value):
    df = web.DataReader(
    selected_dropdown_value,
    'google',
    dt(2017, 1, 1),
    dt.now()
    )
    return {
    'data': [{
    'x': df.index,
    'y': df.Close
    }],
    'layout': {'margin': {'l': 40, 'r': 0, 't': 20, 'b': 30}}
    }


    app.css.append_css({'external_url': 'https://codepen.io/chriddyp/pen/bWLwgP.css'})

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