On 3 Feb 2011, at 16:55, "Johannes Radinger" <jradin...@gmx.at> wrote:
> > -------- Original-Nachricht -------- >> Datum: Thu, 3 Feb 2011 16:26:47 +0000 >> Von: Joshua Arnott <j...@snorfalorpagus.net> >> An: "grass-user@lists.osgeo.org" <grass-user@lists.osgeo.org> >> Betreff: [GRASS-user] Re: mapcalc problem in python script!! > >> Johannes, >> >> Looking at your Python code and the error, I expect the issue is with the >> way you are calling the script, rather than it's content. >> >> From the documentation, g.parser returns a Python dictionary. The options >> "command" is a variable, rather than a function. >> >> http://grass.osgeo.org/grass64/manuals/html64_user/g.parser.html >> >> The key error occurs when you attempt to access a key, in your case >> upstream_shreve, when it does not exist. >> >> http://wiki.python.org/moin/KeyError >> >> I suspect the problem is that you're not setting a value for >> upstream_shreve from the command line, i.e., >> >> ./test3.py upstream_shreve=newmapname upstream_part=upstreammap >> shreve=anothermap >> >> In your Python script, if you throw in: >> >> print options >> >> You'll be able to quickly check it contains the key-value pairs you >> expect. >> >> Hope this helps, >> Josh. > > Hello Josh, > > first thank you for looking over my code... > > Sr but I don't know what you're meaning excactly... the print options command > gives me {}... but how should the executable .py file look like? > > /johannes If {} is all that is returned, it means the dictionary is empty. How are you running your Python script? What do you type at the grass command prompt? Josh._______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
