id summary reporter owner description type status priority milestone component version severity resolution keywords cc 7094 Can't open MITAB with missing IND file in Python cdestigter hobu "We have been provided a TAB which is admittedly slightly broken. It has no IND file, but the field listing in the TAB suggests it should (because some fields are indexed.) `ogrinfo` happily reads the file with a warning, and QGIS is happy to read it somehow. However, opening the file via the Python bindings doesn't work: {{{ >>> gdal.UseExceptions() >>> gdal.GetUseExceptions() 1 >>> x = gdal.OpenEx('broken.tab', gdal.OF_VERBOSE_ERROR) CPLError: Open() failed for broken.ind (rb) CPLError: Failed to open index file broken.IND. GDAL: GDALOpen(broken.tab, this=0x213a680) succeeds as MapInfo File. GDAL: GDALClose(broken.tab, this=0x213a680) >>> x is None True }}} Note that not only did the open fail, but no exception was thrown, despite setting the right flags. However, ogrinfo seems happy to read the file correctly: {{{ $ ogrinfo -so -ro -al broken.tab GNM: GNMRegisterAllInternal GNM: RegisterGNMFile GNM: RegisterGNMdatabase CPLError: Open() failed for broken.ind (rb) ERROR 3: Open() failed for broken.ind (rb) CPLError: Failed to open index file broken.IND. ERROR 4: Failed to open index file broken.IND. GDAL: GDALOpen(broken.tab, this=0xec6bb0) succeeds as MapInfo File. INFO: Open of `broken.tab' using driver `MapInfo File' successful. OGR: GetLayerCount() = 1 Layer name: broken Geometry: Point Feature Count: 76 Extent: (-0.905866, 0.293315) - (0.100955, 0.907231) Layer SRS WKT: GEOGCS[""unnamed"", DATUM[""WGS_1984"", SPHEROID[""WGS 84"",6378137,298.257223563], TOWGS84[0,0,0,0,0,0,0]], PRIMEM[""Greenwich"",0], UNIT[""degree"",0.0174532925199433]] FID: Integer (0.0) GDAL: GDALClose(broken.tab, this=0xec6bb0) GDAL: In GDALDestroy - unloading GDAL shared library. }}} This is with a slightly-custom GDAL 2.2.x." defect closed normal 2.2.3 PythonBindings 2.2.2 normal fixed