old_contents: # -*- coding: utf-8 -*-
  ##############################################################################
  #
  #     This file is part of partner_academic_title,
  #     an Odoo module.
  #
  #     Copyright (c) 2015 ACSONE SA/NV (<http://acsone.eu>)
  #
  #     partner_academic_title is free software:
  #     you can redistribute it and/or modify it under the terms of the GNU
  #     Affero General Public License as published by the Free Software
  #     Foundation,either version 3 of the License, or (at your option) any
  #     later version.
  #
  #     partner_academic_title is distributed
  #     in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
  #     even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  #     PURPOSE.  See the GNU Affero General Public License for more details.
  #
  #     You should have received a copy of the GNU Affero General Public License
  #     along with partner_academic_title.
  #     If not, see <http://www.gnu.org/licenses/>.
  #
  ##############################################################################
  
  from openerp import models, fields, api
  
  
  class ResPartner(models.Model):
      _inherit = 'res.partner'
  
      def _get_separator(self):
          return '-'
  
      @api.depends('academic_title_ids', 'academic_title_ids.sequence')
      @api.one
      def _get_academic_title_display(self):
          display_title = ""
          separator = self._get_separator()
          title_ids = self.academic_title_ids.sorted(lambda r: r.sequence)
          for title in title_ids:
              if display_title:
                  display_title = "%s %s %s" % (display_title, separator,
                                                title.name)
              else:
                  display_title = "%s" % (title.name)
          self.academic_title_display = display_title
  
      academic_title_ids = fields.Many2many(
          comodel_name='partner.academic.title',
          relation='partner_academic_title_ref', column1='partner_id',
          column2='academic_title_id', string='Academic Titles')
      academic_title_display = fields.Char(compute='_get_academic_title_display',
                                           string='Academic Titles', store=True)
  
new_contents: # -*- coding: utf-8 -*-
  ##############################################################################
  #
  #     This file is part of partner_academic_title,
  #     an Odoo module.
  #
  #     Copyright (c) 2015 ACSONE SA/NV (<http://acsone.eu>)
  #
  #     partner_academic_title is free software:
  #     you can redistribute it and/or modify it under the terms of the GNU
  #     Affero General Public License as published by the Free Software
  #     Foundation,either version 3 of the License, or (at your option) any
  #     later version.
  #
  #     partner_academic_title is distributed
  #     in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
  #     even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  #     PURPOSE.  See the GNU Affero General Public License for more details.
  #
  #     You should have received a copy of the GNU Affero General Public License
  #     along with partner_academic_title.
  #     If not, see <http://www.gnu.org/licenses/>.
  #
  ##############################################################################
  
  from openerp import models, fields, api
  
  
  class ResPartner(models.Model):
      _inherit = 'res.partner'
  
      def _get_separator(self):
          return ', '
  
      @api.depends('academic_title_ids', 'academic_title_ids.sequence')
      @api.one
      def _get_academic_title_display(self):
          display_title = ""
          separator = self._get_separator()
          title_ids = self.academic_title_ids.sorted(lambda r: r.sequence)
          for title in title_ids:
              if display_title:
                  display_title = "%s%s%s" % (display_title, separator,
                                                title.name)
              else:
                  display_title = "%s" % (title.name)
          self.academic_title_display = display_title
  
      academic_title_ids = fields.Many2many(
          comodel_name='partner.academic.title',
          relation='partner_academic_title_ref', column1='partner_id',
          column2='academic_title_id', string='Academic Titles')
      academic_title_display = fields.Char(compute='_get_academic_title_display',
                                           string='Academic Titles', store=True)
  
subject: use comma as separator. Put spaces into separator so that it is possible to remove spaces in the separator definition by overriding the method _get_separator.