Key Error [Question]

Just starting out and can’t seem to insert dash into one of my django Applications. I followed the installation and simple usage guide.

I have done the following:

added 'django_plotly_dash.apps.DjangoPlotlyDashConfig' to INSTALLED_APPS in settings. added 'django_plotly_dash.middleware.BaseMiddleware', to MIDDLEWARE in settings

added path('django_plotly_dash/', include('django_plotly_dash.urls')), to my projects urls.py file

Successfully updated the database

created dash app nammed ‘dash_app.py’ and its located in the same folder as the projects settings.py and urls.py file.

Updated template to include {%load plotly_dash%} {%plotly_app name="SimpleExample"%}

and lastly my view.py file looks like this: `class HomePage2(ListView): model = main_kpi template_name = ‘home\home.html’ context_object_name = ‘list_of_kpis’

def get_context_data(self, **kwargs):
    # Call the base implementation first to get a context
    context = super().get_context_data(**kwargs)
    dash_context = self.request.session.get("django_plotly_dash", dict())
    dash_context['django_to_dash_context'] = "I am Dash receiving context from Django"
    self.request.session['django_plotly_dash'] = dash_context
    return context

`

When I bring up the application in debug mode I get the following error: KeyError at /home/ 'Unable to find stateless DjangoApp called simpleexample'

Is there something i’m missing? Happy to update docs with a straight forward how to guide for beginners if I can get this figured out.

[vantaka2]

After a lot trial and error I think I found what I did wrong. in url.py I never imported my dash file:

from . import dash_app

This is even stated in the ‘Simple Useage’ The example Django application in the demo subdirectory achieves this through an import in the main urls.py file

Might be a bit easier for beginners to show the actual import? I can submit a pull request if you think that would be worthwhile.

Thanks!

[brylie]

I opened another pull request to clarify how to register the Plotly app with Dash in the Installation document.