[Gdal-dev] AttributeError: Driver instance has no attribute 'has_key'

[Frank Warmerdam]

On 8/15/05, Paulick Consult <stefan.paulick at urbeli.com> wrote:
> Hello list,
> 
> when working trough http://www.gdal.org/gdal_tutorial.html,
> this error came up:
> 
> Traceback (most recent call last):
> if metadata.has_key(gdal.DCAP_CREATE) \
> AttributeError: Driver instance has no attribute 'has_key'
> 
> Did I miss something or is has_key not longer available?
> 
> code was:
> 
> import gdal
> from gdalconst import *
> 
> filename= 'c:\data\ueb.bild'
> dataset = gdal.Open( filename, GA_ReadOnly )
> if dataset is None:
>    print "bild nicht angelegt:",filename
>    format = "GTiff"
>    metadata = gdal.GetDriverByName( format )
>    if metadata.has_key(gdal.DCAP_CREATE) \

Stefan,

I believe the problem is that you fetch the driver by name, but
don't request the driver metadata.  Try changing:

  metadata = gdal.GetDriverByName(format)

to:

   driver = gdal.GetDriverByName(format)
   metadata = driver.GetMetadata()

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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