Do you have ipywidgets >= 7.2 installed (See install instruction at https://github.com/plotly/plotly.py https://github.com/plotly/plotly.py)? ipywidgets is an

Do you have ipywidgets >= 7.2 installed (See install instruction at https://github.com/plotly/plotly.py https://github.com/plotly/plotly.py)? ipywidgets is an optional dependency and FigureWidget won't be available without it.