On 23/05/13 21:50, Nikos Alexandris wrote:
Hi list.
In a Python script, I use the following pygrass method to retrieve a list of
raster maps:
from grass.pygrass.gis import Mapset
..
landsat_imagery = dict()
..
landsat_imagery['Spectral Bands'] = Mapset().glist('rast', pattern =
'B[123457]')
However, whenever the result is empty, i.e. there are no B1, B2 and so on
named raster maps, running the script fails with the error:
landsat_imagery['Spectral Bands'] = Mapset().glist('rast', pattern =
'B[123457]')
TypeError: 'str' object is not callable
Running the instructions step-wise, from within ipython, doesn't appear to be
problematic. What am I missing in this case?
I can't reproduce this:
>>> landsat_imagery = dict()
>>> landsat_imagery
{}
>>> Mapset().glist('rast', pattern = 'B[123457]')
[]
>>> landsat_imagery['Spectral Bands'] = Mapset().glist('rast', pattern
= 'B[123457]')
>>> landsat_imagery
{'Spectral Bands': []}
So even with an empty result of the glist call, I don't get an error
message.
Moritz
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