i 'am trying to set a default logo for company, but nothing changes 
i tried this code

class logocompany(models.Model):
    _inherit = 'res.company'

    @api.model
    def _default_company_image(self):
        image_path = modules.get_module_resource('auto_product', 'static/src/img', 'autoparts.png')
        return tools.image_resize_image_big(base64.b64encode(open(image_path, 'rb').read()))

    logo = fields.Binary(default=_default_company_image  )