Re: creating netcdf file

Greetings,

This test worked fine for me on python2.5, numpy 1.3.0 and Nio 1.3.0b5 ,
which versions are you using?

daryl

On Wed, 7 Jul 2010, Oleksandr Huziy wrote:

> Dear list,
>
> I am trying to create netcdf file using Nio.
> I cannot save the variable of type integer to the file. Get the following exception:
>
> fatal:FileWriteVar: Type mismatch, can't perform assignment
>
> Traceback (most recent call last):
> File "/Users/huziy/Netbeans Projects/Python/PlotWatrouteData/src/binary/test.py", line 35, in <module>
> test()
> File "/Users/huziy/Netbeans Projects/Python/PlotWatrouteData/src/binary/test.py", line 28, in test
> the_var[:] = data.astype('i')
> File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/PyNIO/Nio.py", line 334, in __setitem__
> self._obj[xsel] = value
> SystemError: error return without exception set
>
> The code which results in this error:
> ---------------------------------------------------------------
> import Nio as nio
> import os
> import numpy as np
>
>
> X_DIM = 'x'
> Y_DIM = 'y'
> def test():
> file_path = 'test1.nc<http://test1.nc>'
> if os.path.isfile(file_path):
> os.remove(file_path)
> file = nio.open_file(file_path, 'c')
> nx = 10
> ny = 10
> file.create_dimension('x', nx)
> file.create_dimension('y', ny)
>
> the_var = file.create_variable('int_var', 'i', (X_DIM, Y_DIM))
> data = np.zeros((nx, ny))
> the_var[:] = data.astype('i')
>
> file.close()
>
> if __name__ == "__main__":
> test()
>
> If I change file.create_variable('int_var', 'i', (X_DIM, Y_DIM)) to
> file.create_variable('int_var', 'd', (X_DIM, Y_DIM))
> it works. Any help is appreciated, thank you.
>
> --
> Oleksandr Huziy
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Received on Wed Jul 7 11:14:36 2010