@utils.email_uncaught_exception
    def handle(self, **options):
        """Django command handler."""
        self.verbosity = int(options.get('verbosity'))
        self.quiet = options.get('quiet')
        self.clean = options.get('clean')
        self.clean_keep = dbbackup_settings.CLEANUP_KEEP
        self.database = options.get('database')
        self.servername = options.get('servername')
        self.compress = options.get('compress')
        self.encrypt = options.get('encrypt')
        self.filename = options.get('output_filename')
        self.path = options.get('output_path')
        self.storage = BaseStorage.storage_factory()
        database_keys = (self.database,) if self.database else dbbackup_settings.DATABASES
        for database_key in database_keys:
            database = settings.DATABASES[database_key]
            if database['ENGINE'] in 'mongo':
                self.dbcommands = MongoDBCommands(database)
            else:
                self.dbcommands = DBCommands(database)
            try:
                self._save_new_backup(database)
                if self.clean:
                    self._cleanup_old_backups(database)
            except StorageError as err:
                raise CommandError(err)
dataset/ETHPy150Open django-dbbackup/django-dbbackup/dbbackup/management/commands/dbbackup.py/Command.handle/swapped operands of `in`