from odoo import fields, models class PackageType(models.Model): _inherit = "stock.package.type" package_carrier_type = fields.Selection(selection_add=[ ('fusion_canada_post', 'Canada Post'), ('fusion_ups', 'UPS'), ('fusion_ups_rest', 'UPS (REST)'), ('fusion_fedex', 'FedEx'), ('fusion_fedex_rest', 'FedEx (REST)'), ('fusion_dhl', 'DHL Express'), ('fusion_dhl_rest', 'DHL Express (REST)'), ])