picking_ids = self.env['stock.picking'].search(
    [('sale_id.sample_id', '=', line.id)])

# for loop condition to check each line by line of the product lines
for pick in picking_ids.move_ids_without_package:
    # check Condition if sample Qty returned less than means status will be partial returned
    if pick.state != 'done':
        print("half delivered")
        picking_ids.write({'state': 'partially_delivered'})

    else:
        print("delivered")
    # print(sample_qty, return_qty)
    # active_id.write({'return_date': self.return_date, 'return_by': self.responsible_person,
    #                  'state': 'return'})