Odoo Zero DB Table

account_remove.py

@api.multi
    def remove_account(self):
        to_removes = [
            ['account.voucher.line', ],
            ['account.voucher', ],
            ['account.bank.statement.line', ],
            ['account.payment', ],
            ['account.analytic.line', ],
            ['account.analytic.account', ],
            ['account.invoice.line', ],
            ['account.invoice.refund', ],
            ['account.invoice', ],
            ['account.partial.reconcile', ],
            ['account.move.line', ],
            ['hr.expense.sheet', ],
            ['account.move', ],
        ]
        try:
            for line in to_removes:
                obj_name = line[0]
                obj = self.pool.get(obj_name)
                if obj:
                    sql = "delete from %s" % obj._table
                    self._cr.execute(sql)

                    seqs = self.env['ir.sequence'].search([
                        '|', ('code', '=', 'account.reconcile'),
                        '|', ('code', '=', 'account.payment.customer.invoice'),
                        '|', ('code', '=', 'account.payment.customer.refund'),
                        '|', ('code', '=', 'account.payment.supplier.invoice'),
                        '|', ('code', '=', 'account.payment.supplier.refund'),
                        '|', ('code', '=', 'account.payment.transfer'),
                        '|', ('prefix', 'like', 'BNK1/'),
                        '|', ('prefix', 'like', 'CSH1/'),
                        '|', ('prefix', 'like', 'INV/'),
                        '|', ('prefix', 'like', 'EXCH/'),
                        ('prefix', 'like', 'MISC/')
                    ])
                    for seq in seqs:
                        seq.write({
                            'number_next': 1,
                        })
        except Exception as e:
            pass  # raise Warning(e)
        return True