if i set required ="1" pop up not open so that only i did not set the required attribute

I understand your issue, in your button get waiting list make sure that you fetch all the data for the columns in tree view. If any data is missing raise User Error so that no new empty record will be created. If you allow this for every iteration your doing if there is no data a new empty record will be created which is waste of db space.

It is a action button (button type is action) . on clicking the action button it was go to the create action method (odoo create method ) then call the popup so in that create action empty record is inserting.

You can also call the same action in py file and give the button type as object... and you can raise error if data is not filled.

action = self.env.ref('module.action_view').read()[0]

if fields:

action['views'] = [(self.env.ref('module.wizard_form_view').id, 'form')]

action['res_id'] = wizard_ids and wizard_ids[0] or False

else:

raise UserError(_("Warning!.\n"))

return action

Type=object also same problem. we tried deleted the empty record after insert before popup. delete working fine.

thanks for your suggestion and help