def _initialise_directories(self):
        """
        Create the root and sub-directories in which loopback files will be
        created.
        """
        self._unattached_directory = self._root_path.child(
            self._unattached_directory_name)

        try:
            self._unattached_directory.makedirs()
        except __HOLE__:
            pass

        self._attached_directory = self._root_path.child(
            self._attached_directory_name)

        try:
            self._attached_directory.makedirs()
        except OSError:
            pass
dataset/ETHPy150Open ClusterHQ/flocker/flocker/node/agents/loopback.py/LoopbackBlockDeviceAPI._initialise_directories