python netcdf: making a copy of all variables and attributes but one

Question

I need to process a single variable in a netcdf file that actually contains many attributes and variable. I think it is not possible to update a netcdf file (see question Ho

Answer 1

I know this is an old question, but as an alternative, you can use the library netcdf and shutil:

import shutil
from netcdf import netcdf as nc

def processing(infile, variable, outfile):
    shutil.copyfile(infile, outfile)
    with nc.loader(infile) as in_root, nc.loader(outfile) as out_root:
        data = nc.getvar(in_root, variable)
        # do your processing with data and save them as memory "values"...
        values = data[:] * 3
        new_var = nc.getvar(out_root, variable, source=data)
        new_var[:] = values