from odoo import api, fields, models class ResPartner(models.Model): _inherit = 'res.partner' l10n_fr_is_french = fields.Boolean(compute='_compute_l10n_fr_is_french') @api.depends('country_code') def _compute_l10n_fr_is_french(self): for partner in self: partner.l10n_fr_is_french = partner.country_code in self.env['res.company']._get_france_country_codes()