partner-contact/partner_contact_birthdate/models/res_partner.py

# Copyright (C) 2014-2015  Grupo ESOC <www.grupoesoc.es>
# Copyright 2017-Apertoso N.V. (<http://www.apertoso.be>)
# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
from odoo import fields, models


class ResPartner(models.Model):
    """Partner with birth date in date format."""
    _inherit = "res.partner"

    birthdate_date = fields.Date("Birthdate")