Re: [Matplotlib-users] error reading netcdf file

[Benjamin R. <ben...@ou...>]

On Wed, Sep 26, 2012 at 10:27 AM, Michael Rawlins <raw...@ya...>wrote:

> Recently built and installed netCDF4-1.0.  I'm running a script that has
> worked on two other linux OS systems. Error:
>
> File "test.py", line 96, in <module>
>     data.missing_value=-9.99
>   File "netCDF4.pyx", line 2570, in netCDF4.Variable.__setattr__
> (netCDF4.c:28242)
>   File "netCDF4.pyx", line 2392, in netCDF4.Variable.setncattr
> (netCDF4.c:26309)
>   File "netCDF4.pyx", line 1013, in netCDF4._set_att (netCDF4.c:12699)
> AttributeError: NetCDF: Write to read only
>
>
> The statement in the code triggers the error is:
>
> data.missing_value=-9.99 .
>
> MR
>
>
>

This typically happens when one opens a netCDF4 Dataset object in 'r' mode,
and/or if the file permissions for the file was set to read-only.  When
modifying an attribute, it is technically trying to write to the file.

Ben Root