Similar to seaborn's hue function in plotly

Hi @thoo,

I think you should be able to loop over your traces_1 and traces_2 lists.

fig = tools.make_subplots(rows=1, cols=2)

for trace in traces_1:
    fig.append_trace(traces, 1, 1)

for trace in traces_2:
    fig.append_trace(traces, 1, 2)

Or, you could specify the lists to add_traces and pass the row/col indices as lists as well.

fig.add_traces(traces_1, rows=[1]*len(traces_1), cols=[1]*len(traces_1)
fig.add_traces(traces_2, rows=[1]*len(traces_2), cols=[2]*len(traces_2)

Hope that helps!
-Jon