[gdal-dev] gdal_merge error on linux debian. It dont find gdal_array.

[Even Rouault]

Andre,

Make sure you have the python-numpy package installed and recompile the GDAL 
python bindings

Even

> Hi
> 
> I'm trying to use the gdal_merge.py. More explixitly I try this call:
> 
> gdal_merge.py -separate /path-to-raster/LC81920292015189LGN00_rgb_hpf.tif \
>     /path-to-raster/LC81930292015196LGN00_rgb_hpf.tif \
>     -o result_image.tif
> 
> (the tiff are float32.)
> 
> The gdal_merge.py gives this error:
> 
> 0Traceback (most recent call last):
>   File "/usr/local/bin/gdal_merge.py", line 523, in <module>
>     sys.exit(main())
>   File "/usr/local/bin/gdal_merge.py", line 512, in main
>     fi.copy_into( t_fh, band, t_band, nodata )
>   File "/usr/local/bin/gdal_merge.py", line 253, in copy_into
>     nodata_arg )
>   File "/usr/local/bin/gdal_merge.py", line 71, in raster_copy
>     m_band )
>   File "/usr/local/bin/gdal_merge.py", line 107, in raster_copy_with_mask
>     t_xsize, t_ysize )
>   File
> "/usr/local/lib/python2.7/dist-packages/GDAL-2.0.0-py2.7-linux-x86_64.egg/o
> sgeo/gdal.py", line 1295, in ReadAsArray
>     import gdalnumeric
>   File
> "/usr/local/lib/python2.7/dist-packages/GDAL-2.0.0-py2.7-linux-x86_64.egg/o
> sgeo/gdalnumeric.py", line 1, in <module>
>     from osgeo.gdal_array import *
>   File
> "/usr/local/lib/python2.7/dist-packages/GDAL-2.0.0-py2.7-linux-x86_64.egg/o
> sgeo/gdal_array.py", line 25, in <module>
>     _gdal_array = swig_import_helper()
>   File
> "/usr/local/lib/python2.7/dist-packages/GDAL-2.0.0-py2.7-linux-x86_64.egg/o
> sgeo/gdal_array.py", line 17, in swig_import_helper
>     import _gdal_array
> ImportError: No module named _gdal_array
> 
> Reading the error seem it is not finding the gdal_array module.
> 
> The gdal is the 2.0.0 version and is compiled from source on a Debian 64
> bit.
> 
> I'm not sure if is a lack of configuration.
> Any hint is welcome.
> 
> Thx,
> 
> Andrea.

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