# xarray.backends.NetCDF4DataStore ### *class* xarray.backends.NetCDF4DataStore(manager, group=None, mode=None, lock=CombinedLock([, ]), autoclose=False)[[source]](https://github.com/pydata/xarray/blob/main/xarray/backends/netCDF4_.py#L429-L784) Store for reading and writing data via the Python-NetCDF4 library. This store supports NetCDF3, NetCDF4 and OpenDAP datasets. #### \_\_init_\_(manager, group=None, mode=None, lock=CombinedLock([, ]), autoclose=False)[[source]](https://github.com/pydata/xarray/blob/main/xarray/backends/netCDF4_.py#L446-L472) ### Methods | [`__init__`](#xarray.backends.NetCDF4DataStore.__init__)(manager[, group, mode, lock, autoclose]) | | |---------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [`close`](xarray.backends.NetCDF4DataStore.close.html.md#xarray.backends.NetCDF4DataStore.close)(\*\*kwargs) | | | [`encode`](xarray.backends.NetCDF4DataStore.encode.html.md#xarray.backends.NetCDF4DataStore.encode)(variables, attributes) | Encode the variables and attributes in this store | | [`encode_attribute`](xarray.backends.NetCDF4DataStore.encode_attribute.html.md#xarray.backends.NetCDF4DataStore.encode_attribute)(a) | encode one attribute | | [`encode_variable`](xarray.backends.NetCDF4DataStore.encode_variable.html.md#xarray.backends.NetCDF4DataStore.encode_variable)(variable[, name]) | encode one variable | | [`get_attrs`](xarray.backends.NetCDF4DataStore.get_attrs.html.md#xarray.backends.NetCDF4DataStore.get_attrs)() | | | `get_child_store`(group) | Get a store corresponding to the indicated child group. | | [`get_dimensions`](xarray.backends.NetCDF4DataStore.get_dimensions.html.md#xarray.backends.NetCDF4DataStore.get_dimensions)() | | | [`get_encoding`](xarray.backends.NetCDF4DataStore.get_encoding.html.md#xarray.backends.NetCDF4DataStore.get_encoding)() | | | `get_parent_dimensions`() | | | [`get_variables`](xarray.backends.NetCDF4DataStore.get_variables.html.md#xarray.backends.NetCDF4DataStore.get_variables)() | | | [`load`](xarray.backends.NetCDF4DataStore.load.html.md#xarray.backends.NetCDF4DataStore.load)() | This loads the variables and attributes simultaneously. | | [`open`](xarray.backends.NetCDF4DataStore.open.html.md#xarray.backends.NetCDF4DataStore.open)(filename[, mode, format, group, ...]) | | | [`open_store_variable`](xarray.backends.NetCDF4DataStore.open_store_variable.html.md#xarray.backends.NetCDF4DataStore.open_store_variable)(name, var) | | | [`prepare_variable`](xarray.backends.NetCDF4DataStore.prepare_variable.html.md#xarray.backends.NetCDF4DataStore.prepare_variable)(name, variable[, ...]) | | | [`set_attribute`](xarray.backends.NetCDF4DataStore.set_attribute.html.md#xarray.backends.NetCDF4DataStore.set_attribute)(key, value) | | | [`set_attributes`](xarray.backends.NetCDF4DataStore.set_attributes.html.md#xarray.backends.NetCDF4DataStore.set_attributes)(attributes) | This provides a centralized method to set the dataset attributes on the data store. | | [`set_dimension`](xarray.backends.NetCDF4DataStore.set_dimension.html.md#xarray.backends.NetCDF4DataStore.set_dimension)(name, length[, is_unlimited]) | | | [`set_dimensions`](xarray.backends.NetCDF4DataStore.set_dimensions.html.md#xarray.backends.NetCDF4DataStore.set_dimensions)(variables[, unlimited_dims]) | This provides a centralized method to set the dimensions on the data store. | | [`set_variable`](xarray.backends.NetCDF4DataStore.set_variable.html.md#xarray.backends.NetCDF4DataStore.set_variable)(k, v) | | | [`set_variables`](xarray.backends.NetCDF4DataStore.set_variables.html.md#xarray.backends.NetCDF4DataStore.set_variables)(variables, check_encoding_set, ...) | This provides a centralized method to set the variables on the data store. | | [`store`](xarray.backends.NetCDF4DataStore.store.html.md#xarray.backends.NetCDF4DataStore.store)(variables, attributes[, ...]) | Top level method for putting data on this store, this method: | | [`store_dataset`](xarray.backends.NetCDF4DataStore.store_dataset.html.md#xarray.backends.NetCDF4DataStore.store_dataset)(dataset) | in stores, variables are all variables AND coordinates in xarray.Dataset variables are variables NOT coordinates, so here we pass the whole dataset in instead of doing dataset.variables | | [`sync`](xarray.backends.NetCDF4DataStore.sync.html.md#xarray.backends.NetCDF4DataStore.sync)() | Write all buffered data to disk. | ### Attributes | [`autoclose`](xarray.backends.NetCDF4DataStore.autoclose.html.md#xarray.backends.NetCDF4DataStore.autoclose) | | |---------------------------------------------------------------------------------------------------------|----| | [`format`](xarray.backends.NetCDF4DataStore.format.html.md#xarray.backends.NetCDF4DataStore.format) | | | [`is_remote`](xarray.backends.NetCDF4DataStore.is_remote.html.md#xarray.backends.NetCDF4DataStore.is_remote) | | | [`lock`](xarray.backends.NetCDF4DataStore.lock.html.md#xarray.backends.NetCDF4DataStore.lock) | | | [`ds`](xarray.backends.NetCDF4DataStore.ds.html.md#xarray.backends.NetCDF4DataStore.ds) | |