[gdal-dev] OGR python : write binary data in layer

[Guilhain Averlant]

I wrote a ticket on gis.stackexchange.combut I didn't get a satisfactory
answer, so I ask my question here.

I'm trying to create a memory layer with gdal/ogr python that contains a
Binary Field.

But I didn't succeed, where am I wrong?

   from osgeo import ogr

   # create layer
   driver = ogr.GetDriverByName('Memory')
   data_source = driver.CreateDataSource('foo')
   layer = data_source.CreateLayer('bar')

   # create binary field
   field_name = 'bin_field'
   binary_field = ogr.FieldDefn(field_name, ogr.OFTBinary)
   layer.CreateField(binary_field)

   # add feature that contains binary value
   bytes_value = bytes(b'hello world')
   feature = ogr.Feature(layer.GetLayerDefn())
   feature.SetField(field_name, bytes_value)
   layer.CreateFeature(feature)

Error message :

       feature.SetField(field_name, bytes_value)
     File "/usr/lib/python3/dist-packages/osgeo/ogr.py", line 4321, in
SetField
       return _ogr.Feature_SetField(self, *args)
   TypeError: Wrong number or type of arguments for overloaded function
'Feature_SetField'.
     Possible C/C++ prototypes are:
       OGRFeatureShadow::SetField(int,char const *)
       OGRFeatureShadow::SetField(char const *,char const *)
       OGRFeatureShadow::SetField(int,double)
       OGRFeatureShadow::SetField(char const *,double)
       OGRFeatureShadow::SetField(int,int,int,int,int,int,float,int)
       OGRFeatureShadow::SetField(char const
*,int,int,int,int,int,float,int)

Link to question on Stack Exchange :
https://gis.stackexchange.com/questions/382119/ogr-python-write-binary-data-in-layer

-- 
Guilhain AVERLANT
119 rue Manin
75019 PARIS
06 28 22 83 05
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