Ivan Willig wrote:
Hi list,
I am having an issues with using the python swig based bindings. I am on
Fedora 13 using the default gdal rpm, which is at version 1.6.2. My
issue is when i stack method calls. For example when I do the following:
ogr.Open("/home/ivan/dev/bigapps/data/nyco.shp").GetLayer().GetFeature(0)
I get a Segmentation fault. Here are the results of strace
http://paste.pocoo.org/show/281682/. What am I doing wrong? Should I
just hand compile a new version of gdal? Or is this not an advised usage
of the python bindings? A limitation in swig? Thanks for your help.
Ivan,
I believe the problem is object lifetimes. Keep a reference to the
datasource around until you are done with the feature(s).
ds = ogr.Open("/home/ivan/dev/bigapps/data/nyco.shp")
feat = ds.GetLayer().GetFeature(0)
...
feat = None
ds = None
Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up | Frank Warmerdam, warmer...@pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush | Geospatial Programmer for Rent
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/gdal-dev
