To insert a mpld3 chart in a view proceed as follows:

1.  You should inherit from abstract class abstract.mpld3.parser:

        _name = 'res.partner'
        _inherit = ['res.partner', 'abstract.mpld3.parser']

2.  Import the required libraries:

        import matplotlib.pyplot as plt

3.  Declare a json computed field like this:

        mpld3_chart = fields.Json(
            string='Mpld3 Chart',
            compute='_compute_mpld3_chart',
        )

4.  In its computed method do:

        def _compute_mpld3_chart(self):
            for rec in self:
                # Design your mpld3 figure:
                plt.scatter([1, 10], [5, 9])
                figure = plt.figure()
                rec.mpld3_chart = self.convert_figure_to_json(figure)

5.  In the view, add something like this wherever you want to display
    your mpld3 chart:

        <div>
            <field name="mpld3_chart" widget="mpld3_chart" nolabel="1"/>
        </div>