A Monday 25 May 2009 19:55:28 Eric Firing escrigué: > >> If the aim is to come up with a method of saving numpy arrays that uses > >> a standard protocol and does not introduce large dependencies, then > >> could this be accomplished using netcdf instead of hdf5, specifically > >> Roberto De Almeida's pupynere, which is already in scipy.io as > >> netcdf.py? Or does hdf5 have essential characteristics for this purpose > >> that netcdf lacks?
After looking a bit at the code of pupynere, there is the next line: assert magic == 'CDF', "Error: %s is not a valid NetCDF 3 file" % self.filename So, the current version of pupynere is definitely for version 3 of NetCDF, not version 4. > >>From what I understand, netCFD is based on on HDF5, at least as of the > > > > version 4 release. > > Netcdf4 is indeed built on hdf5, but netcdf3 is not, and netcdf3 format > is likely to stick around for a *very* long time. The netcdf4 library > is backwards-compatible with netcdf3. NetCDF4 is backwards-compatible with NetCDF3 just at API level, not the file format. NetCDF3 has a much more simple format, and completely different from NetCDF4, which is based on HDF5. Cheers, -- Francesc Alted _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
