[GRASSGUI] Re: RENDERING SOLVED!!!!

[William Kyngesburye]

On Mar 20, 2007, at 1:43 PM, Jachym Cepicky wrote:

> Hi,
>
>> If possible, commands should be lists of strings rather than strings.
>> This will start to matter if we have commands where option values can
>> contain spaces or other shell metacharacters.
>>
>> IOW, os.spawnv() should be used in preference to os.system().
>>
>
> AFAIK os.system is really  deprecated. How ever, I do not understand,
> if os.spawn should be the best.
>
> http://docs.python.org/lib/node538.html
>
> suggests to use Popen from the subprocess package.
>
> this is, what we have in the compat folder in Gism, because it does
> not work for python <=2.3
>
> I sugget to use subprocess.Popen on this place
>
> jachym
>
FWIW, when I played with my OSX GRASS.app using a python wrapper  
(it's now started from AppleScript), I could only get os.spawnv to  
work right.  Though I only tried spawn* and exec*, not system or popen.

-----
William Kyngesburye <kyngchaos at kyngchaos.com>
http://www.kyngchaos.com/

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