The plotly interactive example with ipywidgets,
has not been updated to the latest version of plotly. I’ve gotten the code to work by migrating the code to use go.Histogram:
traces =  trace = go.Histogram(x = x1, opacity = 0.75, name = 'Arrival Delays', ) traces.append(trace) trace = go.Histogram(x = x2, opacity = 0.75, name = 'Departure Delays') traces.append(trace) layout = go.Layout(barmode = 'overlay', title = 'Delays (All)', xaxis = dict(title = 'Delay in Minutes', titlefont = dict(size = 18, color='#7f7f7f')), yaxis = dict(title = 'Number of Delays', titlefont = dict(size = 18, color='#7f7f7f'))) fig = go.Figure(data = traces, layout = layout)
and updating the traces in response() with:
fig.update_traces(patch = dict(x = x1), selector = dict(name = 'Arrival Delays')) fig.update_traces(patch = dict(x = x2), selector = dict(name = 'Departure Delays'))
However, when I change the airline, airport, or month, the histogram does not get redrawn, and thus, it really doesn’t update. I verified that the callbacks, validate() and response() are getting called, and my new code is being executed, when a change is made. I’ve tried calling fig.show() and display(fig) after updating the traces, but the histrogram does not update; instead another histrogram is drawn BELOW and AFTER the first rendering of the histogram, not in place.
Can someone tell me what I need to do to truly update the histogram interactively?