[GRASS-user] issue with grass_session on MacOSX: Cannot find GRASS GIS start script

[Moritz Lennert]

Hi,

A student has been confronted with the following error trying to use 
grass_session on Mac:

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from grass_session import Session

GRASSBIN: /Applications/GRASS-$GRASS_MMVER.app/Contents/MacOS
cmd: /Applications/GRASS-$GRASS_MMVER.app/Contents/MacOS --config path
out: b''
err: b'/bin/sh: /Applications/GRASS-.app/Contents/MacOS: No such file or 
directory\n'
Traceback (most recent call last):
File "<pyshell#24>", line 1, in <module>
from grass_session import Session
File 
"/Users/simon/Documents/Stage/Models/WhiteBoxTools/grass_session/__init__.py", 
line 4, in <module>
from grass_session.session import (get_platform_name,
File 
"/Users/simon/Documents/Stage/Models/WhiteBoxTools/grass_session/session.py", 
line 259, in <module>
GISBASE = get_grass_gisbase(grassbin=GRASSBIN)
File 
"/Users/simon/Documents/Stage/Models/WhiteBoxTools/grass_session/session.py", 
line 75, in get_grass_gisbase
"variable").format(grassbin=grassbin))
RuntimeError: Cannot find GRASS GIS start script: 
/Applications/GRASS-$GRASS_MMVER.app/Contents/MacOS, set the right one 
using the GRASSBIN environm. variable

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Does anyone have a hint ?

Moritz