I'm not sure if this is it but looking at the path to the "os.py" my installation (although OSGEO4W and 7.0.4) shows "Lib" not "lib" ...
It it is having trouble finding the os.py file, then the difference in the spelling of lib with a capital letter may be the issue...
Could it be that simple ?!?!
Chris Bartolomei P.E.
[hidden email] ________________________________________
From: grass-user [[hidden email]] On Behalf Of Uwe Fischer [[hidden email]]
Sent: Thursday, May 12, 2016 8:48 AM
To: [hidden email] Subject: [GRASS-user] problems running v.centroids
I can’t get >v.centroids< working in Grass 7.0.3.
When I try I get the following message:
v.centroids --overwrite --quiet input=inputmap output=outputmap cat=1000
Traceback (most recent call last):
File "C:\PROGRA~1\QGISES~1\apps\grass\grass-7.0.3/scripts/v.centroids.py", line 69, in <module> main()
File "C:\PROGRA~1\QGISES~1\apps\grass\grass-7.0.3/scripts/v.centroids.py", line 63, in main
grass.exec_command("v.category", type = 'area',**options)
File "C:\PROGRA~1\QGISES~1\apps\grass\grass-7.0.3\etc\python\grass\script\core.py", line 536, in exec_command
os.execvpe(prog, args, env)
File "C:\PROGRA~1\QGISES~1\apps\Python27\lib\os.py", line 353, in execvpe
_execvpe(file, args, env)
File "C:\PROGRA~1\QGISES~1\apps\Python27\lib\os.py", line 380, in _execvpe
OSError: [Errno 2] No such file or directory
(Wed May 11 08:00:49 2016) Command finished (0 sec)
I have no idea what that means and where to look for the error.
Furthermore, the final goal is to run v.centroids as part of an external python script that can be started from outside GRASS.
When I try this, I get the following message:
Process ended with non-zero return code 1. See errors in the (error) output.
What ist the "(error) output" of a python script and where can I find it?
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On Thu, May 12, 2016 at 8:30 PM, Martin Landa <[hidden email]> wrote:
> 2016-05-12 17:48 GMT+02:00 Uwe Fischer <[hidden email]>:
>> grass.exec_command("v.category", type = 'area',**options)
>> OSError: [Errno 2] No such file or directory
@devs: could that error message be tuned in order to say which file is