[GRASS-user] Running a Pyhton Script on Mac (Mapcalc)

[Johannes Radinger]

Thank you nick for the tipp with the line breaks!

I opend the script with text wrangler and there were indeed
mac line endings. So I saved it with unix line endings and
now it seems to work. Maybe GRASS should be able to handle 
line endings from various platforms if that is possible...

Now I get the menu for setting input and output for the script
after launching it...seems to work...anyway I have to play around
because no output is created at the moment from my script...hmmm?

/johannes


-------- Original-Nachricht --------
> Datum: Wed, 23 Mar 2011 05:06:51 -0500
> Von: Nick Cahill <ndcahill at wisc.edu>
> An: GRASS user list <grass-user at lists.osgeo.org>
> Betreff: Re: [GRASS-user] Running a Pyhton Script on Mac (Mapcalc)

> 
> 
> I haven't run python scripts from within GRASS, but have found that they
> won't run if the line breaks are not unix line breaks, rather than Mac or
> Windows - which you'll get if you write the script in some applications. 
> 
> BBEdit is a very good editor on the Mac and will run python scripts within
> the editor. I think there's a free version too - text wrangler. 
> 
> Nick Cahill
> 
> 
> On Mar 23, 2011, at 2:29 AM, Johannes Radinger wrote:
> 
> > 
> > Am 23.03.2011 um 05:22 schrieb Glynn Clements:
> > 
> >> 
> >> Johannes Radinger wrote:
> >> 
> >>> I'd like to run a python script on my GRASS6.5 on MacOS.
> >>> 
> >>> I saved a *.py script for testing with following content on my
> desktop:
> >> 
> >>> All the needed files (upstream_part, shreve) are existing in the
> >>> location and mapset that is open. Then I tried to execute
> >>> File-->Launch Script and choose it. Then I just get back:
> >>> 
> >>> Launching script '/Users/Johannes Radinger/Desktop/mapcalc-test.py'...
>          
> >>> (Tue Mar 22 10:57:15 2011)                                            
>          
> >>> /Users/Johannes Radinger/Desktop/mapcalc-test.py                      
>          
> >>> (Tue Mar 22 10:57:15 2011) Command finished (0 sec)
> >>> 
> >>> and nothing happend and no map was created...
> >>> 
> >>> what is wrong with my script?
> >> 
> >> Does the script have execute permission ("chmod +x ...")?
> > 
> > The script has execute permission so far as I think, but anyway I ran
> chmod +x on the file...
> > 
> >> 
> >> Does MacOSX have the Python interpreter at /usr/bin/python?
> >> 
> >> It's common practice for Python scripts to use:
> >> 
> >> 	#!/usr/bin/env python
> > 
> > my first script included #!/usr/bin/env python, but it failed (error
> message) it couldn't find python, thats why I googled  and found:
> http://macosx.com/forums/unix-x11/46163-how-do-i-run-python-script.html
> > that is why i used /usr/bin/python.
> > 
> > I just got the tip in forum to check for the line-endings in the file,
> they might cause the problem, so I will check that.
> > 
> > But anyway, is there any other possible reason why I fail?
> > Is there any Mac-User with Python-Script-Mapcalc experience?
> > 
> > 
> >> 
> >> which only requires that "python" is somewhere in $PATH, rather than
> >> assuming a fixed location. The Python scripts in 7.0 use this
> >> mechanism.
> >> 
> >> -- 
> >> Glynn Clements <glynn at gclements.plus.com>
> > 
> > 
> > _______________________________________________
> > grass-user mailing list
> > grass-user at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/grass-user
> 
> _______________________________________________
> grass-user mailing list
> grass-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/grass-user

-- 
NEU: FreePhone - kostenlos mobil telefonieren und surfen!			
Jetzt informieren: http://www.gmx.net/de/go/freephone