filled contour plot in plotly.express

Is there a way to create filled contour plots with plotly.express similar to the following one? (reference: https://plot.ly/python/contour-plots/)

The only ones I have seen so far with plotly.express are not filled, e.g.:

import plotly.express as px
df = px.data.iris()
fig = px.density_contour(df, x="sepal_width", y="sepal_length", color="species", marginal_x="rug", marginal_y="histogram")
fig.show()

(reference: https://plot.ly/python/plotly-express/)

Any help is appreciated! 😃

[lucanics]

In case this is useful to anyone, I needed this kind of plot in combination with animation frames.

Although the solution below might not be very beautiful using the iris dataset, you might have a better usecase for other dataframes:

import plotly.express as px
df = px.data.iris()
df_w = df["sepal_width"].copy()
df_l = df["sepal_length"].copy()

fig = px.density_contour(df, x="sepal_width", y="sepal_length", 
                         range_x=[df_w.min(),df_w.max()], 
                         range_y = [df_l.min(), df_l.max()],
                         animation_frame="species")

fig.data[0]["contours"].coloring = "fill"
fig.update_traces(colorscale="Viridis")

for num,frames in enumerate(fig.frames, start=0):
    fig.frames[num].data[0]["contours"].coloring = "fill"

fig.show()

[nicolaskruchten]

You can set the colorscale in the update_traces() call like this: