[gdal-dev] python: possible to get Dataset from Band

[Even Rouault]

Le mercredi 10 novembre 2010 00:10:08, Paolo Corti a écrit :
> > No, there's no direct way of doing it with an API call. But as you can
> > only get a Band from a Dataset, you can easily do something like :
> > 
> > band = ds.GetRasterBand(xxx)
> > band.ds = ds
> 
> Do we really need this? As far as I remember band must be in the same
> context of dataset (dataset can't go out of scope), so why would we
> need a reference to it?

You're 100% right. By the way, assigning the dataset as a member of the band 
is an excellent means of making sure that we keep a reference to the dataset. 
That's indeed the gist of the patch attached to ticket 
http://trac.osgeo.org/gdal/ticket/3592 .

> best regards
> P