@api.onchange('bom_line_ids')
def get_excl_list(self):

     list1 = []
     for i in self.excl_list:
         list1.append(i.id)

     list2 = []
     for j in self.bom_line_ids:
         list2.append(j.product_id.id)

         if j.product_id.id in list1:
             warning_message = "Product: " + self.env['product.template'].search([('id','=',j.product_id.id)]).name + " can't be added to the BoM.n Please select another product."
             print "self.bom_line_ids.product_id", self.bom_line_ids.product_id
             self.bom_line_ids.product_id = False
             print "self.bom_line_ids.product_id", self.bom_line_ids.product_id

              return { 'warning': {'title': 'Product error', 'message':warning_message} }

self.bom_line_ids.product_id = False

j.product_id = False

self.bom_line_ids[self.bom_line_ids.index(j)].product_id = False

job_titles = fields.Char('Job',compute='myemply_name',store=True)

    @api.onchange('new_empl')
    @api.depends('new_empl')
    def myemply_name(self):
        self.job_titles = value