[GRASS-user] Running Python scripts inside GRASS
sonja.jankowfsky at cemagref.fr
Fri Mar 5 04:56:59 EST 2010
So, there is one good thing: I got to run my python program inside
GRASS. However, I lost the python GUI. It's good that there is still the
Tcl/Tk interface and QGIS ;-)
Reducing the PYTHONPATH to C:\GRASS-4-SVN\etc\python changes nothing in
the error message.
However, I had a look in my python installations
(Python24,Python25,Python26 and GRASS-4-SVN/Python25) for collections.py
and this is only included in Python26.
This explains also, why my python program runs under Eclipse, as I put
Python26 into the Eclipse Path.
So, I changed the hole content of my C:\GRASS-4-SVN\Python25 directory
with the content of the C:\Python26 directory. I kept the name
(Python25) of the directory and the Scripts directory and sip.exe.
Now, I can run my Pythonprogramm under the GRASS windows command line,
however I can no longer use the Pythonwx GUI. (which does not seem
surprising due to the brutal changes I made ;-))
I don't know anything about the differences between Python25 and
Python26 and the dependencies for the wxpython GUI, but in my opinion it
would be necessary to update the WinGRASS installation with a Python26
version while keeping the compability to the wxpython GUI, in order to
be able to run the python scripts inside GRASS.
Does anybody know an easier solution?
Glynn Clements a écrit :
> Sonja Jankowfsky wrote:
>> I'm inside a GRASS session, with my Windows GRASS Command Line and I try
>> to run a python script using GRASS functions:
>> File "E:\pythoninput\test_simple.py", line 2, in <module>
>> import grass.script as grass
>> File "C:\GRASS-4-SVN\etc\python\grass\script\__init__.py", line 1, in
>> from core import *
>> File "C:\GRASS-4-SVN\etc\python\grass\script\core.py", line 30, in
>> import subprocess
>> File "C:\GRASS-4-SVN\Python25\lib\subprocess.py", line 376, in <module>
>> import threading
>> File "C:\GRASS-4-SVN\Python25\lib\threading.py", line 13, in <module>
>> from collections import deque
>> ImportError: No module named collections
>> Is this an error in the PYTHONPATH? And where can I define it inside GRASS?
> This indicates either a broken Python installation or broken
> configuration. The collections module should be present in 2.5 (it was
> added in 2.4).
> From your previous message, I note:
> This is wrong. PYTHONPATH should be set to:
> It shouldn't contain any other directories. Python can find modules
> which are part of the Python distribution without any configuration;
> PYTHONPATH is only needed for the Python modules which are part of
Cemagref de Lyon
3 bis quai Chauveau CP 220
69336 Lyon Cedex 09
Tel : (+33)4 72 20 86 11
Fax : (+33)4 78 47 78 75
More information about the grass-user