issue_comments: 475487497

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https://github.com/pydata/xarray/issues/2822#issuecomment-475487497 https://api.github.com/repos/pydata/xarray/issues/2822 475487497 MDEyOklzc3VlQ29tbWVudDQ3NTQ4NzQ5Nw== 1217238 2019-03-22T04:08:32Z 2019-03-22T04:08:32Z MEMBER

I can reproduce this with libnetcdf 4.6.2.

It looks like this problem is associated with having a _NCProperties attribute on a netCDF3 file: ```

netCDF4.Dataset('some_netcdf_classic_file_simple.nc') <class 'netCDF4._netCDF4.Dataset'> root group (NETCDF3_CLASSIC data model, file format NETCDF3): _NCProperties: version=1|netcdflibversion=4.6.1|hdf5libversion=1.8.20 Conventions: CF-1.5 featureType: timeSeries NCO: netCDF Operators version 4.7.5 (Homepage = http://nco.sf.net, Code = http://github.com/nco/nco) nco_openmp_thread_number: 1 dimensions(sizes): feature_id(1) variables(dimensions): >i4 Q_TYPE(feature_id), >f4 lat(feature_id), >f4 lon(feature_id) groups: ```

This appears to be fixed in libnetcdf 4.6.3 (https://github.com/Unidata/netcdf-c/issues/803), if you can upgrade to that version.

In the meantime, you can manually delete the _NCProperties attribute, e.g., del data.attrs['_NCProperties']

Out of curiosity, where did this netCDF file come from?

 
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