old_contents: # -*- coding: utf-8 -*-
  ##############################################################################
  # For copyright and license notices, see __openerp__.py file in module root
  # directory
  ##############################################################################
  from openerp import models, fields, api
  
  
  class StockProductionlot(models.Model):
  
      _inherit = 'stock.production.lot'
  
      qty_available_not_res = fields.Float(
          compute='_compute_qty_available_not_res',
          string='Qty Available Not Reserved',
          store=True
      )
  
      @api.multi
      @api.depends('quant_ids.reservation_id', 'quant_ids.qty')
      def _compute_qty_available_not_res(self):
          for rec in self:
              rec.qty_available_not_res = sum(rec.quant_ids.filtered(
                  lambda x: not x.reservation_id).mapped('qty'))
  
      @api.multi
      def name_get(self):
          result = []
          for rec in self:
              name = '%s (%s u)' % (rec.name, rec.qty_available_not_res or 0.0)
              result.append((rec.id, name))
          return result
  
new_contents: # -*- coding: utf-8 -*-
  ##############################################################################
  # For copyright and license notices, see __openerp__.py file in module root
  # directory
  ##############################################################################
  from openerp import models, fields, api
  
  
  class StockProductionlot(models.Model):
  
      _inherit = 'stock.production.lot'
  
      qty_available_not_res = fields.Float(
          compute='_compute_qty_available_not_res',
          string='Qty Available Not Reserved',
          store=True
      )
  
      @api.multi
      @api.depends('quant_ids.reservation_id', 'quant_ids.qty')
      def _compute_qty_available_not_res(self):
          for rec in self:
              rec.qty_available_not_res = sum(rec.quant_ids.filtered(
                  lambda x: not x.reservation_id).mapped('qty'))
  
      @api.multi
      def name_get(self):
          result = []
          for rec in self:
              read = rec.quant_ids.read_group(
                  [('lot_id', '=', rec.id)],
                  ['location_id', 'qty'], 'location_id')
              locations_qty = ', '.join(
                  ['%s: %s' % (x['location_id'][1], x['qty']) for x in read])
              name = '%s (%s)' % (rec.name, locations_qty)
              result.append((rec.id, name))
          return result
  
subject: FIX in lot name_get to show location with the stock