Method close

xarray/backends/file_manager.py:234–242

Explicitly close any associated file object (if necessary).

(self, needs_lock: bool = True)

                return file, True

    def close(self, needs_lock: bool = True) -> None:
        """Explicitly close any associated file object (if necessary)."""
        # TODO: remove needs_lock if/when we have a reentrant lock in
        # dask.distributed: https://github.com/dask/dask/issues/3832
        with self._optional_lock(needs_lock):
            default = None
            file = self._cache.pop(self._key, default)
            if file is not None:
                file.close()

    def __del__(self) -> None:
        # If we're the only CachingFileManger referencing an unclosed file,