I'm trying to figure out what's needed to render a tree view with custom data generated in one of my methods.

For example, if I have a list with strings:

myList = ["one","two","three"]

And I want it in something like this:

<tree string="myList">
     <field name="value"/>
</tree>

What do I need to do with my data to be able to feed them in to a similar xml? In my case, the values are calculated on the fly, so I don't want/need to save them in to the database.

It seems fairly easy to get a model from the database to show up in a tree view like this, but I want to feed data straight from python, not through the database.

I'm on odoo v9. Any help pointing in the right direction would be appreciated.