Example showing how to construct a dropdown widget that can be used to select a cube dimension.



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import ipywidgets
import IPython.display
import iris

Load cube.



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cube = iris.load_cube(iris.sample_data_path('A1B.2098.pp'))
print cube

Compose list of options and then construct widget to present them, along with a default option. Display the widget using the IPython display call.



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coordinates = [(coord.name()) for coord in cube.coords()]

dim_x = ipywidgets.Dropdown(
    description='Dimension:',
    options=coordinates,
    value='time')

IPython.display.display(dim_x)

Print selected widget value for clarity.



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print dim_x.value

Dropdown Menu