[Numpy-discussion] Copy netcdf attributes between different files

[Jeff Whitaker]

On 11/14/11 10:04 AM, Giovanni Plantageneto wrote:
> Hi everybody,
> I am using netCDF4 library to read and write from netcdf files. I
> would like to copy all the attributes of one file to another one, in a
> way like this:
>
> ---
>
> from netCDF4 import Dataset as ncdf
>
> file1 = ncdf('file1.nc', mode='r', format='NETCDF4_CLASSIC')
> ...
> file2 = ncdf('file1.nc', mode='w', format='NETCDF4_CLASSIC')
> for att in file1.ncattrs():
>     file2.att = file1.getncatt(att)
> ...
> file1.close()
> file2.close()
>
> ---
>
> But this will not work as only one attribute named "att" in file2 will
> be created. How should I do this?
> Thanks.
>
Try this:

for att in file1.ncattrs():
    setattr(file2,att) = getattr(file1,att)

-Jeff


-- 
Jeffrey S. Whitaker         Phone  : (303)497-6313
Meteorologist               FAX    : (303)497-6449
NOAA/OAR/PSD  R/PSD1        Email  : Jeffrey.S.Whitaker at noaa.gov
325 Broadway                Office : Skaggs Research Cntr 1D-113
Boulder, CO, USA 80303-3328 Web    : http://tinyurl.com/5telg