[gdal-dev] Help with GDAL/OGR Python API and OCI

[Alejandro Saucedo]

Yes, it was that. I replaced the library it was linked to with the one from
my GDAL I built.

Thank you very much!

Regards.

On Mon, Mar 25, 2019 at 5:56 PM Even Rouault <even.rouault at spatialys.com>
wrote:

> On lundi 25 mars 2019 17:26:17 CET Alejandro Saucedo wrote:
> > Hello,
> > Please, your help with the following problem.
> > I am not able to see the Oracle OCI driver from python using the GDAL/OGR
> > bindings.
> > The following code prints always None:
> >     from osgeo import ogr
> >     print(ogr.GetDriverByName( 'OCI' ))
> >  Also, the driver is never listed here:
> >     drivers = [ogr.GetDriver(i).GetDescription() for i in
> > range(ogr.GetDriverCount())]
> >     drivers.sort()
> >     print(drivers)
> > ['ARCGEN', 'AVCBin', 'AVCE00', 'AeronavFAA', 'AmigoCloud', 'BNA', 'CAD',
> > 'CSV', 'CSW', 'Carto', 'Cloudant', 'CouchDB', 'DGN', 'DXF', 'EDIGEO',
> 'ESRI
> > Shapefile', 'ESRIJSON', 'ElasticSearch', 'GFT', 'GML', 'GMLAS', 'GPKG',
> > 'GPSBabel', 'GPSTrackMaker', 'GPX', 'GeoJSON', 'GeoRSS', 'Geoconcept',
> > 'HTF', 'HTTP', 'Idrisi', 'Interlis 1', 'Interlis 2', 'JML',
> 'JP2OpenJPEG',
> > 'KML', 'LIBKML', 'MBTiles', 'MVT', 'MapInfo File', 'Memory', 'NAS',
> 'ODS',
> > 'OGR_DODS', 'OGR_GMT', 'OGR_PDS', 'OGR_SDTS', 'OGR_VRT', 'OSM',
> 'OpenAir',
> > 'OpenFileGDB', 'PCIDSK', 'PDF', 'PGDUMP', 'PLSCENES', 'PostgreSQL',
> 'REC',
> > 'S57', 'SEGUKOOA', 'SEGY', 'SQLite', 'SUA', 'SVG', 'SXF', 'Selafin',
> > 'TIGER', 'TopoJSON', 'UK .NTF', 'VDV', 'VFK', 'WAsP', 'WFS', 'WFS3',
> 'XLS',
> > 'XLSX', 'XPlane', 'netCDF']
> >
> > However, OCI can be used in command line with ogr2ogr and it is listed
> when
> > executing ogrinfo --formats:
> >   OCI -vector- (rw+): Oracle Spatial
> >
> > My environment is as follows:
> > RHOL 7, GDAL 2.3.3, Python 3.6 (with Numpy 1.16.1), Oracle Instant Client
> > 18.5
> >
> > I have tried building the python bindings using the following
> alternatives:
> > 1) Building the python bindings with the GDAL source tree:
> > ./configure --prefix=<GDAL_PREFIX> --with-curl=/usr/bin/curl-config
> > --with-python=<PYTHON3.6_BIN>/python
> > --with-oci-include=$ORACLE_HOME/sdk/include --with-oci=$ORACLE_HOME
> > 2) Downloading the python bindings from
> > https://pypi.org/project/GDAL/2.3.3/#files and running setup.py
> > build/install process
> > 3) Using pip install GDAL==2.3.3
> >
> > The result is the same always, I can use the GDAL/OGR python API but
> cannot
> > see or use the OCI driver (the same for GeoRaster).
> >
> > As suggested at
> >
> https://trac.osgeo.org/gdal/wiki/BuildingOnUnix#OCIwithoutinstallingOracle
> ,
> > I have my ORACLE_HOME variable pointing to the instantclient folder,
> > ORACLE_HOME is also present at the PATH and LD_LIBRARY_PATH env vars as
> it
> > is GDAL/bin and GDAL/lib respectively.
>
> I presume the shared libraries of the python bindings link to another
> version
> of the GDAL lib than the one that you've built.
> Locate _gdal.cpython-36m-x86_64-linux-gnu.so (or something like that),
> and run
> ldd on it to see to which libgdal it links to
>
>
> --
> Spatialys - Geospatial professional services
> http://www.spatialys.com
>
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