Thanks Luke
this is exactly the approach I have used, solving the issue
To me looks strange that a layer can't exist without the datasource in the
scope, with other GIS API is not so.
But anyway, good to know
best regards
----- Original Message ----
From: "Pinner, Luke" <luke.pin...@environment.gov.au>
To: Python Gis <pygis2...@yahoo.com>
Cc: gdal-dev@lists.osgeo.org
Sent: Thu, July 22, 2010 1:21:23 AM
Subject: RE: [gdal-dev] python bindings: strange behavior with layer
The datasource "ds" is still going out of scope as it is local to your
"getLayer2" function.
Lots of ways to avoid this. Try not wrapping it up in a function, or
return a tuple of datasource and layer e.g.
def getDSandLayer(shape_fullname):
ds = ogr.Open(shape_fullname, 0)
layer = ds.GetLayer(0)
print 'Name from method: %s' % layer.GetName()
return ds,layer;
ds,layer = getLayer2('output/myshape.shp')
print 'Name from main: %s' % layer.GetName()
Luke
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