id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux 27960 "ds = DataSource('/path/to/your/cities.shp') fails on first try (GDALException Unknown error code: ""198770787""), but works on second" Etiënne Thomassen nobody "I can not create a DataSource from a gpx file. It returns GDALException Unknown error code: ""198770787"" with the error code number seemingly random. However on the second try it works. And it does not even need to be the same file. {{{ Python 3.6.0 (default, Dec 24 2016, 08:01:42) [GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.42.1)] on darwin Type ""help"", ""copyright"", ""credits"" or ""license"" for more information. >>> from django.contrib.gis.gdal import DataSource >>> ds = DataSource('Bleswerk dec16.gpx') Traceback (most recent call last): File """", line 1, in File ""/Users/etienne/.virtualenvs/bosbot3/lib/python3.6/site-packages/django/contrib/gis/gdal/datasource.py"", line 64, in __init__ Driver.ensure_registered() File ""/Users/etienne/.virtualenvs/bosbot3/lib/python3.6/site-packages/django/contrib/gis/gdal/driver.py"", line 83, in ensure_registered rcapi.register_all() File ""/Users/etienne/.virtualenvs/bosbot3/lib/python3.6/site-packages/django/contrib/gis/gdal/prototypes/errcheck.py"", line 119, in check_errcode check_err(result, cpl=cpl) File ""/Users/etienne/.virtualenvs/bosbot3/lib/python3.6/site-packages/django/contrib/gis/gdal/error.py"", line 74, in check_err raise GDALException('Unknown error code: ""%s""' % code) django.contrib.gis.gdal.error.GDALException: Unknown error code: ""-1935278031"" >>> ds = DataSource('20140525_170950_gpx.gpx') >>> ds.layer_count 5 }}} This post on StackOverflow pointed me in this direction: http://stackoverflow.com/questions/41775536/datasource-gdalexception-unknown-error-code-474873798 Strangely, I can now get it to work doing this in my app: {{{ try: datasource = DataSource(target_path) except: datasource = DataSource(target_path) }}} " Bug new GIS 1.10 Normal DataSource, GIS Unreviewed 0 0 0 0 0 0