ParseError: "Wrong value for ir.sequence.code: 'mrp.lot'" while parsing file:///c:/program files (x86)/odoo 8.0-20170901/server/openerp/addons/mrp_lot/sequence.xml:6, near
<record model="ir.sequence" id="seq_lot_id">
                  <field name="name">Lot Number</field>
                  <field name="code">mrp.lot</field>
                  <field name="active">True</field>
                  <field name="prefix">LOT</field>
                  <field name="number_increment">1</field>
                  <field name="number_next">1</field>
                  <field name="padding">5</field>
                  <field name="implementation">standard</field>
              </record>

class mrp_lot(models.Model):

    _name = "mrp.lot"



    name = fields.Char(string="Lot No", readonly=True, required=True, copy=False, default='New')



    @api.model   

    def create(self, vals):

        if vals.get('name', 'New') == 'New':

                vals['name'] = self.env['ir.sequence'].next_by_code('mrp.lot') or 'New'       



        result = super(mrp_lot, self).create(vals)       



        return result