Hi, I do not know if this is helpful, but the following worked, - after
being confronted with the same error message:
[1]
See:
https://grasswiki.osgeo.org/wiki/Working_with_GRASS_without_starting_it_explicitly#Important_notes
[2]
The following worked for me with Michael Bartons 7.3 binaries. The
location and mapset were created from outside GRASS
In Terminal
Install pip:
| => sudo easy_install pip
Password:
Searching for pip
Best match: pip 8.1.1
Adding pip 8.1.1 to easy-install.pth file
Installing pip script to /Users/jon/anaconda2/bin
Installing pip2.7 script to /Users/jon/anaconda2/bin
Installing pip2 script to /Users/jon/anaconda2/bin
Using /Users/jon/anaconda2/lib/python2.7/site-packages
Processing dependencies for pip
Finished processing dependencies for pip
[3]
Install grass-session
________________________________________________________________________________
| ~ @ jons-iMac (jon)
| => pip install grass-session
Collecting grass-session
Downloading
https://files.pythonhosted.org/packages/ae/be/5b9f707dff22529358c3d147373658a85599540addffbda9c629dcc97366/grass_session-0.1-py2.py3-none-any.whl
Installing collected packages: grass-session
Successfully installed grass-session-0.1
You are using pip version 8.1.1, however version 18.0 is available.
You should consider upgrading via the 'pip install --upgrade pip'
command.
________________________________________________________________________________
| ~ @ jons-iMac (jon)
| => pip install --upgrade pip
Collecting pip
Downloading
https://files.pythonhosted.org/packages/5f/25/e52d3f31441505a5f3af41213346e5b6c221c9e086a166f3703d2ddaf940/pip-18.0-py2.py3-none-any.whl
(1.3MB)
100%
|████████████████████████████████|
1.3MB 517kB/s
Installing collected packages: pip
Found existing installation: pip 8.1.1
Uninstalling pip-8.1.1:
Successfully uninstalled pip-8.1.1
Successfully installed pip-18.0
[4]
My script:
#!/usr/bin/env python
#-*- coding:utf-8 -*-
from grass.script import core as grass
from grass.script import db as grass
from grass_session import Session
from grass.script import core as gcore
# create a new location from EPSG code
with Session(gisdb="/Users/jon/a_tmp", location="a_tmp_location",
create_opts="EPSG:3057"):
print '-'
# create a new mapset in an existing location
with Session(gisdb="/tmp", location="location", mapset="test",
create_opts=""):
print '--'
[5]
In Terminal:
| => export GISBASE="/Applications/GRASS-7.3.app/Contents/MacOS"
| => export PYTHONPATH="${PYTHONPATH}:$GISBASE/etc/python/"
| => export LD_LIBRARY_PATH="$DYLD_LIBRARY_PATH:$GISBASE/lib"
| => export GIS_LOCK=$$
| => export GISRC="/Users/jon/.grass7"
| => GRASSBIN=/Applications/GRASS/grass7.app/Contents/MacOS/grass.sh
python a.py
GRASSBIN: /Applications/GRASS/grass7.app/Contents/MacOS/grass.sh
GISBASE: Rebuilding Addon HTML manual pages index...
Rebuilding Addon menu...
Python 2.7.10 found.
/Applications/GRASS/grass7.app/Contents/MacOS
-
--
Cheers, Jon
On 3 Sep 2018, at 14:49, Moritz Lennert wrote:
Hi,
A student has been confronted with the following error trying to use
grass_session on Mac:
**********************
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
************************************
Does anyone have a hint ?
Moritz
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