I´m trying to write a Python script, that includes different ArcPy / ArcGIS commands and want to combine it with GRASS geoprocessing tools.Unfortunately importing the GRASS libraries doesn´t work.import grass.script as grassends in an error:
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
ImportError: No module named script
I know that GRASS GIS installs it's own Python version. Isn´t there a way to combine the ArcGIS and the GRASS GIS installation of Python? I tried copying the pygrass module (or what I thought it might be) to the "C:\Python26\ArcGIS10.0\Lib\site-packages\" folder. I´m getting a different error message, but it´s still not working.Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
File "C:\Python26\ArcGIS10.0\lib\site-packages\grass\script\__init__.py", line 1, in <module>
from core import *
File "C:\Python26\ArcGIS10.0\lib\site-packages\grass\script\core.py", line 38, in <module>
gettext.install('grasslibs', os.path.join(os.getenv("GISBASE"), 'locale'))
File "C:\Python26\ArcGIS10.0\lib\ntpath.py", line 96, in join
assert len(path) > 0
TypeError: object of type 'NoneType' has no len()
In a second step I tried to connect to the .py files from GRASS GIS, but it´s still not working.import sys
sys.path.append('C:/Program Files (x86)/GRASS GIS 6.4.3RC2/etc/python/grass/script/core.py')
sys.path.append('C:/Program Files (x86)/GRASS GIS 6.4.3RC2/etc/python/grass/script/db.py')
sys.path.append('C:/Program Files (x86)/GRASS GIS 6.4.3RC2/etc/python/grass/script/vector.py')
sys.path.append('C:/Program Files (x86)/GRASS GIS 6.4.3RC2/etc/python/grass/script/raster.py')
sys.path.append('C:/Program Files (x86)/GRASS GIS 6.4.3RC2/etc/python/grass/script/setup.py')
sys.path.append('C:/Program Files (x86)/GRASS GIS 6.4.3RC2/etc/python/grass/script/array.py')
sys.path.append('C:/Program Files (x86)/GRASS GIS 6.4.3RC2/etc/python/grass/script/task.py')
import grass.script as grass
I´m using ArcGIS 10 and GRASS 6.4.3 on a Windows 7 64 Bit machine. Any help would be highly appreciated.