issues: 201428093
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| 201428093 | MDU6SXNzdWUyMDE0MjgwOTM= | 1215 | to_netcdf() fails to append to an existing file | 10050469 | closed | 0 | 14 | 2017-01-17T22:45:45Z | 2017-10-25T05:09:10Z | 2017-10-25T05:09:10Z | MEMBER | The following code used to work well in v0.8.2: ```python import os import xarray as xr path = 'test.nc' if os.path.exists(path): os.remove(path) ds = xr.Dataset() ds['dim'] = ('dim', [0, 1, 2]) ds['var1'] = ('dim', [10, 11, 12]) ds.to_netcdf(path) ds = xr.Dataset() ds['dim'] = ('dim', [0, 1, 2]) ds['var2'] = ('dim', [10, 11, 12]) ds.to_netcdf(path, 'a') ``` On master, it fails with: ```RuntimeError Traceback (most recent call last) <ipython-input-1-fce5f5e876aa> in <module>() 14 ds['dim'] = ('dim', [0, 1, 2]) 15 ds['var2'] = ('dim', [10, 11, 12]) ---> 16 ds.to_netcdf(path, 'a') /home/mowglie/Documents/git/xarray/xarray/core/dataset.py in to_netcdf(self, path, mode, format, group, engine, encoding) 927 from ..backends.api import to_netcdf 928 return to_netcdf(self, path, mode, format=format, group=group, --> 929 engine=engine, encoding=encoding) 930 931 def unicode(self): /home/mowglie/Documents/git/xarray/xarray/backends/api.py in to_netcdf(dataset, path, mode, format, group, engine, writer, encoding) 563 store = store_cls(path, mode, format, group, writer) 564 try: --> 565 dataset.dump_to_store(store, sync=sync, encoding=encoding) 566 if isinstance(path, BytesIO): 567 return path.getvalue() /home/mowglie/Documents/git/xarray/xarray/core/dataset.py in dump_to_store(self, store, encoder, sync, encoding) 873 variables, attrs = encoder(variables, attrs) 874 --> 875 store.store(variables, attrs, check_encoding) 876 if sync: 877 store.sync() /home/mowglie/Documents/git/xarray/xarray/backends/common.py in store(self, variables, attributes, check_encoding_set) 219 cf_variables, cf_attrs = cf_encoder(variables, attributes) 220 AbstractWritableDataStore.store(self, cf_variables, cf_attrs, --> 221 check_encoding_set) 222 223 /home/mowglie/Documents/git/xarray/xarray/backends/common.py in store(self, variables, attributes, check_encoding_set) 194 def store(self, variables, attributes, check_encoding_set=frozenset()): 195 self.set_attributes(attributes) --> 196 self.set_variables(variables, check_encoding_set) 197 198 def set_attributes(self, attributes): /home/mowglie/Documents/git/xarray/xarray/backends/common.py in set_variables(self, variables, check_encoding_set) 204 name = _encode_variable_name(vn) 205 check = vn in check_encoding_set --> 206 target, source = self.prepare_variable(name, v, check) 207 self.writer.add(source, target) 208 /home/mowglie/Documents/git/xarray/xarray/backends/netCDF4_.py in prepare_variable(self, name, variable, check_encoding) 293 endian='native', 294 least_significant_digit=encoding.get('least_significant_digit'), --> 295 fill_value=fill_value) 296 nc4_var.set_auto_maskandscale(False) 297 netCDF4/_netCDF4.pyx in netCDF4._netCDF4.Dataset.createVariable (netCDF4/_netCDF4.c:18740)() netCDF4/_netCDF4.pyx in netCDF4._netCDF4.Variable.init (netCDF4/_netCDF4.c:30713)() RuntimeError: NetCDF: String match to name in use ``` |
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completed | 13221727 | issue |