0

I tried to follow an example of building a data dashboard from here.
This is the code run on JupyterLab. 

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

But, activating the Dash server using the following code return error. 

app = dash.Dash(__name__)
server = app.server
if __name__ == '__main__':
    app.run_server(debug=True)

Error message: 

An exception has occurred, use %tb to see the full traceback.

SystemExit: 1
C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py:3334: UserWarning:

To exit: use 'exit', 'quit', or Ctrl-D.

I changed debug=True with debug=False, but the server (http://127.0.0.1:8050/) is not opening. Instead, it keeps processing without opening a new page.
Thanks for your help.

k.ko3n
  • 844
  • 5
  • 17

1 Answers1

0

You need to install jupyter-plotly-dash but it is in "alpha" development phase. It is recommended to install it and run in virtualenv. It is known it gives issues when using system-python.

You will probably also need to run:

sudo pip3 install jupyter_server_proxy
jupyter serverextension enable jupyter_server_proxy

See also this discussion on github.

Tony
  • 5,611
  • 1
  • 10
  • 38