[GRASS-user] Error using grass.Popen

[Markus Neteler]

2011/3/31 António Rocha <antonio.rocha at deimos.com.pt>:
> Greetings
>
> I'm using grass.Popen like this:
> externalProcess = grass.Popen(cmd, stdout=grass.PIPE, stderr=grass.PIPE,
> cwd=tempfile)           It seems that I'm getting some error while running
> this function but the only thing that is printed in my command Output window
> is:
> <grass.script.core.Popen object at 0x00D6ECD0>
>
> How can I get the exact error that I'mgetting?


Unfortunately I don't know. But what kind of "cmd" are you running?
On
http://grass.osgeo.org/wiki/GRASS_and_Python#GRASS_Python_Scripting_Library
I read
"[To be precise, they use grass.Popen(), which just calls
subprocess.Popen() with shell=True on Windows and shell=False
otherwise. On Windows, you need to use shell=True to be able to
execute scripts (including batch files); shell=False only works with
binary executables.]"

Maybe giving you some idea?

Markus