How to use the OGR/GDAL configure options in QGIS Python environment

Question

I'm looking for a solution how to use the OGR/GDAL configure options (--config) in the QGIS Python environment. http://trac.osgeo.org/gdal/wiki/ConfigOptions

Setting special configure options is necessary to load some data correctly (OGR Driver).

QgsVectorLayer(filename, title, "ogr") 

Answer 1

One usually sets options in C with CPLSetConfigOption. In python it would be gdal.SetConfigOption(option, value), e.g., gdal.SetConfigOption('PG_USE_COPY', 'YES')

Answer 2

In the C and C++ API you can use

CPLSetConfigOption("GDAL_DATA", "your folder path with gdal-data");

In Qt I use

CPLSetConfigOption("GDAL_DATA", QDir( QCoreApplication::applicationDirPath().append("/gdal-data")).absolutePath().toLocal8Bit() );

As my gdal-data folder is relative to the executable path.