Hi Anna and Michel,
Thanks for looking into this and sorry for my late response.
Anna, I assume you refer to this ticket:
https://trac.osgeo.org/grass/ticket/1982
Also in my case os.chdir() did the trick.
I had both environment variables (GRASS_ADDON_PATH and GRASS_ADDON_BASE) defined, and that did not help (though I have to admit that I cannot tell for sure if the environment is passed to the execution of the “inner” python script properly. I also tried writing out an additional batch script on windows, but that did not change anything either…
Unfortunately, Michels script did not work for me on Windows (line script=file(module,‘r’).read() threw an error (plus some more further down the road)).
The script below works on Windows (at least my installation), though it gives me a pop-up window asking for the proper program to execute the specified file in the command. The pop-up can be closed and then the script continues as desired…
I hope you dont mind that I open an enhancement request for this. I saw that the “checker” structure member in the parser executes a routine (see: [https://grass.osgeo.org/programming7/gislib_cmdline_parsing.html#Complete_Structure_Members_Table](https://grass.osgeo.org/programming7/gislib_cmdline_parsing.html#Complete_Structure_Members_Table)). This is actually what I was thinking about here (If I dont misunderstand how It works), so I hope the “checker” solution could be re-purposed in this direction…?
Kind regards
Stefan
Windows solution:
#!/usr/bin/env python
-- coding: utf-8 -- import os
import stat
import tempfile
import subprocess
import grass.script as grass
from os import getenv
answer = grass.mapsets(search_path = True)
available_mapsets = grass.mapsets()
#print str(‘,’.join(grass.mapsets()))
#print str(‘,’.join(answer))
with tempfile.NamedTemporaryFile(dir=os.path.join(getenv(‘GRASS_ADDON_BASE’), ‘scripts’), suffix=‘.py’, delete = False) as s:
s.write(‘’'#!/usr/bin/env python
-- coding: utf-8 --
···
Hi,
you can look how Layer manager launches scripts:
https://trac.osgeo.org/grass/browser/grass/trunk/gui/wxpython/lmgr/frame.py#L841, I think it requires setting the GRASS_ADDON_PATH
I remember this problem, maybe it’s in parser. There might be a ticket already, but I am not sure. If you can’t find anything related, please create a ticket.
On Tue, Oct 13, 2015 at 9:33 AM, Michel Wortmann <wortmann@pik-potsdam.de> wrote:
Hi Stefan,
I have been meaning to implement something like this too and got your example to work with the additional step of setting the environment variable GRASS_ADDON_PATH (and under unix setting the permissions). Here is my example just parsing the first mapset it finds:
import os, tempfile, stat
import grass.script as grass
module = 'subbasins.py'
if __name__=='__main__':
answer = grass.mapsets(search_path = True)
available_mapsets = grass.mapsets()
`script=file(module,'r').read()`
with tempfile.NamedTemporaryFile(delete = False) as s:
s.write('''#!/usr/bin/env python
# -*- coding: utf-8 -*-
{script}
#%Option
#% key:{option}
#%end
'''.format(script=script,option=available_mapsets[0].lower()))
``
startcmd = 'python '+s.name
# set env variable
aoev='GRASS_ADDON_PATH'
tmpdir = os.path.basename(s.name)
if aoev in os.environ:
os.environ[aoev]=[tmpdir]+os.environ[aoev]
else:
os.environ[aoev]=[tmpdir]
# set permissions
os.chmod(s.name, os.stat(s.name).st_mode | stat.S_IEXEC)
# start module
os.system(startcmd)
os.remove(s.name)
Let me know if this works under Windows too.
Michel
On 10/12/2015 12:55 PM, Blumentrath, Stefan wrote:
Hi again,
Now I found out that the parser section in the inner python script was not formated properly.
However, when I now call the inner script with ‘–ui’ I get an error:
Unable to fetch interface description for command ‘tmpjksdfjiol’
Details:
Try to set up GRASS_ADDON_PATH or GRASS_ADDON_BASE variable.
It was neither possible to run the script using grass.run_command() (on Windows).
Cheers
Stefan
From: grass-dev [mailto:grass-dev-bounces@lists.osgeo.org] On Behalf Of Blumentrath, Stefan
Sent: 12. oktober 2015 11:36
To: GRASS developers list (grass-dev@lists.osgeo.org) grass-dev@lists.osgeo.org
Subject: [GRASS-dev] Using a dynamic text in module header for parser
Hi,
I would like to fill:
#% options:
and
#% answer
in a parser option for a python script dynamically. In particular I want to have tickboxes for available mapsets in the module GUI…
Meaning something like this (but less complex / not interactive):
http://permalink.gmane.org/gmane.comp.gis.grass.gui/667
My amateur programming skills do unfortunately not allow me to really understand how to accomplish what Glynn describes in the post above…
I tried to generate and run a temporary python script from within my script like this:
def main():
answer = grass.mapsets(search_path = True)
available_mapsets = str(grass.mapsets())
with tempfile.NamedTemporaryFile(delete = False) as s:
s.write(‘’’ #!/usr/bin/env python
-- coding: utf-8 --
Here comes the full module with header for the parser
#% options: ‘’’ + str(‘,’.join(available_mapsets))
…
’’’)
startcmd = 'python ’ + s.name
os.system(startcmd)
os.remove(s.name)
But that way the GUI never starts, when I call the outer script from GRASS and it seems that option never get parsed…
Any hints how to proceed?
Thanks for helping in advance.
Stefan
_______________________________________________
grass-dev mailing list
[grass-dev@lists.osgeo.org](mailto:grass-dev@lists.osgeo.org)
[http://lists.osgeo.org/mailman/listinfo/grass-dev](http://lists.osgeo.org/mailman/listinfo/grass-dev)
grass-dev mailing list
grass-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-dev