[GRASS-user] my first script

Johannes Radinger johannesradinger at gmail.com
Sun Oct 12 22:43:34 PDT 2014


It seems to raise an error related to the flag(s) you are specifying in oneof your grass modules you are using in your script. Flags in grass python scripts should be used like: flags="a" or for two flags: flags="ab". Note this does not need a "-" like in the bash command.


-------- Original message --------
From: Giuliano Urgeghe <giuliano.u at gmail.com> 
Date: 13/10/2014  02:44  (GMT+01:00) 
To: grass-user at lists.osgeo.org 
Subject: [GRASS-user] my first script 
Hi all,
I have my first script in python for grass 
but when I launch it on windows vista for grass 6.4.2 in quantum gis
I have this output:
File "C:\PROGRA~1\QUANTU~3\apps\grass\grass-6.4.2\etc\pyth
on\grass\script\core.py", line 189, in run_command
    ps = start_command(*args, **kwargs)
  File "C:\PROGRA~1\QUANTU~3\apps\grass\grass-6.4.2\etc\pyth
on\grass\script\core.py", line 167, in start_command
    args = make_command(prog, flags, overwrite, quiet,
verbose, **options)
  File "C:\PROGRA~1\QUANTU~3\apps\grass\grass-6.4.2\etc\pyth
on\grass\script\core.py", line 124, in make_command
    raise ScriptError("'-' is not a valid flag")
grass.script.core.ScriptError: "'-' is not a valid flag"

someone know this problem?

thanks in advance

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