Modifying ansible's DO dynamic inventory to return more helpful groups that suite my needs

digital_ocean.py

# in for loop of method 'build_inventory'

            if "-" in droplet['name']:
                # Create new groups for names like prod-appname-whatever
                # Given the above name, 2 new groups would be created "prod"
                # and "prod-appname"
                parts = droplet['name'].split("-")
                if len(parts) > 1:
                    self.push(self.inventory, "-".join(parts[0:2]), dest)
                    self.push(self.inventory, parts[0], dest)