Currently I use this syntax:
purchase_line_obj = self.pool.get('purchase.order.line')
purchase_line_ids = purchase_line_obj.search(cr, uid, [('id','>',0)])
for purchase_line in purchase_line_obj.browse(cr, uid, purchase_line_ids,context=context):
I have tried to pass None or 0 to the ids in the 'browse' call to no avail. Is there any way to obtain all the records from 'browse' without having to pass the list of all id's?