[GRASS-user] Error when running a scrip in Windows-WinGRASS

Helena_Herrera · October 1, 2010, 1:31am

Greetings

I have developed a Script to import Landsat images that runs just fine in Linux

But when I compile (Msys) with this expressioN:
make -C r.in.landsat MODULE_TOPDIR=/C/OSGeo4W/usr/src/grass-6.4.svn_src_snapshot_2010_09_04

and run in GRASS I get this error:

Traceback (most recent call last):
File “C:/OSGeo4W/apps/grass/grass-6.4.1svn/etc/wxpython/wx
gui.py”, line 486, in OnRunCmd
self.goutput.RunCmd(cmd, switchPage=False)
File “C:\OSGeo4W\apps\grass\grass-6.4.1svn\etc\wxpython\gu
i_modules\goutput.py”, line 368, in RunCmd
menuform.GUI().ParseCommand(cmdlist, parentframe=self)
File “C:\OSGeo4W\apps\grass\grass-6.4.1svn\etc\wxpython\gu
i_modules\menuform.py”, line 1866, in ParseCommand
xml.sax.parseString(getInterfaceDescription(cmd[0]).decode(e
nc).split(‘\n’,1)[1].replace(‘’, ‘<?xml version="1.0" encoding="utf-8"?>\n’, 1).encode(“utf-8”),
IndexError
:
list index out of range

1- Is my compilation expression correct?

2- What am I missing on this?
Thanks
Helena

Glynn_Clements1 · October 1, 2010, 5:40pm

Helena Herrera wrote:

I have developed a Script to import Landsat images that runs just fine in
Linux

But when I compile (Msys) with this expressioN:
make -C r.in.landsat
MODULE_TOPDIR=/C/OSGeo4W/usr/src/grass-6.4.svn_src_snapshot_2010_09_04

and run in GRASS I get this error:

xml.sax.parseString(getInterfaceDescription(cmd[0]).decode(enc).split('\n',1)[1].replace('',
'<?xml version="1.0" encoding="utf-8"?>\n', 1).encode("utf-8"),

IndexError: list index out of range
1- Is my compilation expression correct?

2- What am I missing on this?

I'm not sure that Python scripts work in 6.x on Windows. I'm fairly
sure that the build system *doesn't* handle Python scripts in 6.x on
Windows.

The main issue is that, on Windows, the build system installs a batch
file which executes the actual script, and the batch file only works
for shell scripts.

--
Glynn Clements <glynn@gclements.plus.com>

Helena_Herrera · October 4, 2010, 6:41pm

Greetings to all

I want to know if anyone has ever tried to build Python Scripts on winGRASS 6.x???
Because I didn’t find any literature or document that this was a limition on Windows…

On Fri, Oct 1, 2010 at 6:40 PM, Glynn Clements <glynn@gclements.plus.com> wrote:

Helena Herrera wrote:

I have developed a Script to import Landsat images that runs just fine in
Linux

But when I compile (Msys) with this expressioN:
make -C r.in.landsat
MODULE_TOPDIR=/C/OSGeo4W/usr/src/grass-6.4.svn_src_snapshot_2010_09_04

and run in GRASS I get this error:

xml.sax.parseString(getInterfaceDescription(cmd[0]).decode(enc).split(‘\n’,1)[1].replace(‘’,

‘<?xml version="1.0" encoding="utf-8"?>\n’, 1).encode(“utf-8”),

IndexError: list index out of range
1- Is my compilation expression correct?

2- What am I missing on this?

I’m not sure that Python scripts work in 6.x on Windows. I’m fairly
sure that the build system doesn’t handle Python scripts in 6.x on
Windows.

The main issue is that, on Windows, the build system installs a batch
file which executes the actual script, and the batch file only works
for shell scripts.

–
Glynn Clements <glynn@gclements.plus.com>

M.Onur_Kurum · October 13, 2010, 6:28pm

I’ve been a reader in the Grass-users list so far but I wanted to follow up with this:

I was trying to get a py script running under Grass 6.4 and 7.0
OS: WIndows 7 64 bit

Here are the results of my experiments, I will try to provide as much detail as I can:

I am using http://svn.osgeo.org/grass/grass-addons/raster/r.ipso/ for my tests:

GRASS64
I have GRASS 64 installed in C:\GRASS-64
I put the the r.ipso.py in C:\GRASS-64\scripts
I launch the GRASS 6.4.0 with MSYS

when I directly try to launch the module, I get this:

GRASS 6.4> r.ipso.py
Traceback (most recent call last):
File “c:/GRASS-64/scripts/r.ipso.py”, line 53, in
import matplotlib.pyplot as plt
File “C:\GRASS-64\Python25\lib\site-packages\matplotlib\pyplot.py”, line 78, in
new_figure_manager, draw_if_interactive, show = pylab_setup()
File “C:\GRASS-64\Python25\lib\site-packages\matplotlib\backends_init_.py”, line 25, in pylab_setup
globals(),locals(),[backend_name])
File “C:\GRASS-64\Python25\lib\site-packages\matplotlib\backends\backend_tkagg.py”, line 7, in
import Tkinter as Tk, FileDialog
ImportError: No module named Tkinter

I could workaround this problem by using the Python 26 installed separately in C:\Python26 (which has numpy, matplotlib, wx-2.8-msw-unicode (wxpython) etc)
apparently python26 interpreter can run the matplotlib better(?).
so I did:

GRASS 6.4> export PATH=“/C/GRASS-64/lib:/C/GRASS-64/bin:/C/GRASS-64/scripts:/C/GRASS-64/tcl-tk/bin:/C/GRASS-64/sqlite/bin:/C/GRASS-64/gpsbabel:/C/GRASS-64/extralib:/bin:/C/Python26”
GRASS 6.4> export PYTHONHOME=“/C/Python26”

note that I removed the C/Grass-64/extrabin to prevent the python.exe there to interfere with my python.exe (the one in C:\Python26) to execute - If I don’t remove C/Grass-64/extrabin from the PATH, here is the result:

GRASS 6.4> r.ipso.py
c:/Python26\lib\site.py:150: Warning: ‘with’ will become a reserved keyword in Python 2.6
‘import site’ failed; use -v for traceback
Traceback (most recent call last):
File “c:/GRASS-70-SVN/scripts/r.ipso.py”, line 52, in
import os
File “c:/Python26\lib\os.py”, line 758
bs = b""
^
SyntaxError: invalid syntax

so anyway, I change the path as I mentioned above and the result is:

GRASS 6.4> r.ipso.py
ERROR: Required parameter not set:
(Name of raster map).
ERROR: Required parameter not set:
(output graph).
Description:
Keywords:
raster
Usage:
r.ipso.py [-ab] map=name image=image [–verbose] [–quiet]

Flags:
-a generate ipsometric curve
-b generate ipsographic curve
–v Verbose module output
–q Quiet module output

Parameters:
map Name of raster map
image output graph
GRASS 6.4>

so it works, I tried it with an input map and everything. It creates the plot image and everything but the GUI does not launch (in linux it does - everything works better there ). I want the GUI so that when I create my own script I can check how the GUI looks etc.

I tried the same thing GRASS 7 too since it is all Python (which I love ! )

I get a different error when I go r.ipso.py just after launching GRASS 7.0.SVN with MSYS (Grass7.0 is installed in C:\GRASS-70-SVN - I mention this to let you know that I don’t go with the default C:\Program Files (X86)\GRASS… which has spaces in it and it creates all kinds of problems - I see that it is been fixed, but I still feel this is safer)

GRASS 7.0.svn> r.ipso.py
Traceback (most recent call last):
File “c:/GRASS-70-SVN/scripts/r.ipso.py”, line 53, in
import matplotlib.pyplot as plt
ImportError: No module named matplotlib.pyplot

the reason (probably), C:\GRASS-70-SVN\Python25\Lib\site-packages does not come with matplotlib - anyway I trick it again to look for libraries under my Python26 by exporting:

export PATH=“/C/GRASS-70-SVN/lib:/C/GRASS-70-SVN/bin:/C/GRASS-70-SVN/scripts:/C/GRASS-70-SVN/tcl-tk/bin:/C/GRASS-70-SVN/sqlite/bin:/c/GRASS-70-SVN/gpsbabel:/c/GRASS-70-SVN/extralib:/bin:/c/Python26”
export PYTHONHOME=“/C/Python26”

again note that I don’t have the extrabin folder in the PATH

GRASS 7.0.svn> r.ipso.py
ERROR: wxGUI requires wxPython. No module named wxversion
GRASS 7.0.svn>

This is where I am at right now - it seems that it is going to work out if I figure out this last “ERROR: wxGUI requires wxPython. No module named wxversion” problem in Grass-70.

Any ideas, suggestions ?
I just want to be able to launch the GUI when I have a .py of my own under /scripts in grass6.4 or 7.0

thanks
Onur

···

–

M.Onur Kurum
Graduate Research Assistant
Dept. of Civil, Construction, and Environmental Engineering
North Carolina State University
Campus Box 7908
2501 Stinson Drive, 428 Mann Hall
Raleigh, NC 27695-7908
Office: (919) 515-1340
Mobile: (919) 200-0665
Email: mokurum@ncsu.edu
Email: m.onur.kurum@gmail.com

Greetings to all

I want to know if anyone has ever tried to build Python Scripts on winGRASS 6.x???
Because I didn’t find any literature or document that this was a limition on Windows…

On Fri, Oct 1, 2010 at 6:40 PM, Glynn Clements <glynn@gclements.plus.com> wrote:

Helena Herrera wrote:

I have developed a Script to import Landsat images that runs just fine in
Linux

But when I compile (Msys) with this expressioN:
make -C r.in.landsat
MODULE_TOPDIR=/C/OSGeo4W/usr/src/grass-6.4.svn_src_snapshot_2010_09_04

and run in GRASS I get this error:

xml.sax.parseString(getInterfaceDescription(cmd[0]).decode(enc).split(‘\n’,1)[1].replace(‘’,

‘<?xml version="1.0" encoding="utf-8"?>\n’, 1).encode(“utf-8”),

IndexError: list index out of range
1- Is my compilation expression correct?

2- What am I missing on this?

I’m not sure that Python scripts work in 6.x on Windows. I’m fairly
sure that the build system doesn’t handle Python scripts in 6.x on
Windows.

The main issue is that, on Windows, the build system installs a batch
file which executes the actual script, and the batch file only works
for shell scripts.

–
Glynn Clements <glynn@gclements.plus.com>
_______________________________________________
grass-user mailing list
[grass-user@lists.osgeo.org](mailto:grass-user@lists.osgeo.org)
[http://lists.osgeo.org/mailman/listinfo/grass-user](http://lists.osgeo.org/mailman/listinfo/grass-user)

–

M.Onur Kurum
Graduate Research Assistant
Dept. of Civil, Construction, and Environmental Engineering
North Carolina State University
Campus Box 7908
2501 Stinson Drive, 428 Mann Hall
Raleigh, NC 27695-7908
Office: (919) 515-1340
Mobile: (919) 200-0665
Email: mokurum@ncsu.edu
Email: m.onur.kurum@gmail.com

Glynn_Clements1 · October 14, 2010, 6:44am

M.Onur Kurum wrote:

Any ideas, suggestions ?
I just want to be able to launch the GUI when I have a .py of my own
under /scripts in grass6.4 or 7.0

For 7.0, remove any version of Python which is bundled with GRASS, and
remove any reference to it from the startup scripts. Just use the
installed version of Python.

The only thing which may be problematic is the wxPython digitiser
module. That includes a binary component which will only work with the
exact versions of Python and wxPython for which it was compiled. If
this module is present, you may need to remove it in order to start
the GUI.

--
Glynn Clements <glynn@gclements.plus.com>

M.Onur_Kurum · October 14, 2010, 5:00pm

I completely removed the Python25 bundled with GRASS and changed the startup bat file to not look for the bundled python so this is how it goes:

C:\GRASS-70-SVN>set_shell_start_grass70svn.bat
Cleaning up temporary files…
Starting GRASS GIS…
Traceback (most recent call last):
File “C:\GRASS-70-SVN\etc\gui\wxpython\gis_set.py”, line 38, in
import gui_modules.goutput
File “C:\GRASS-70-SVN\etc\gui\wxpython\gui_modules\goutput.py”, line 35, in
import gcmd
File “C:\GRASS-70-SVN\etc\gui\wxpython\gui_modules\gcmd.py”, line 44, in
from win32file import ReadFile, WriteFile
ImportError: No module named win32file
Error in GUI startup. If necessary, please report this error to the GRASS developers.
Switching to text mode now.

Hit RETURN to continue…

Traceback (most recent call last):
File “C:\GRASS-70-SVN\grass70.py”, line 956, in
set_data()
File “C:\GRASS-70-SVN\grass70.py”, line 497, in set_data
gui_startup()
File “C:\GRASS-70-SVN\grass70.py”, line 519, in gui_startup
os.execlp(cmd_name, “-text”)
File “C:\Python26\lib\os.py”, line 327, in execlp
execvp(file, args)
File “C:\Python26\lib\os.py”, line 344, in execvp
_execvpe(file, args)
File “C:\Python26\lib\os.py”, line 380, in _execvpe
func(fullname, *argrest)
OSError: [Errno 2] No such file or directory

I guess this is what you meant with
"The only thing which may be problematic is the wxPython digitiser module. "

for windows grass 7 comes bundled with python25 and now I use python26 installed separately.
Could you be more specific about how to remove the module ? I am lost there.

in the bundled \Python25\Lib\site-packages\wx-2.8-msw-unicode I see that wxpython is
Metadata-Version: 1.0
Name: wxPython
Version: 2.8.9.1 for python 2.5

and the one in \Python26\Lib\site-packages\wx-2.8-msw-unicode is version 2.8.11.0 for python 2.6

thanks
Onur

···

–

M.Onur Kurum
Graduate Research Assistant
Dept. of Civil, Construction, and Environmental Engineering
North Carolina State University
Campus Box 7908
2501 Stinson Drive, 428 Mann Hall
Raleigh, NC 27695-7908
Office: (919) 515-1340
Mobile: (919) 200-0665
Email: mokurum@ncsu.edu
Email: m.onur.kurum@gmail.com

Glynn_Clements1 · October 15, 2010, 4:13am

M.Onur Kurum wrote:

  I completely removed the Python25 bundled with GRASS and changed the
startup bat file to not look for the bundled python so this is how it goes:

C:\GRASS-70-SVN>set_shell_start_grass70svn.bat
Cleaning up temporary files...
Starting GRASS GIS...
Traceback (most recent call last):
   File "C:\GRASS-70-SVN\etc\gui\wxpython\gis_set.py", line 38, in <module>
     import gui_modules.goutput
   File "C:\GRASS-70-SVN\etc\gui\wxpython\gui_modules\goutput.py", line
35, in <module>
     import gcmd
   File "C:\GRASS-70-SVN\etc\gui\wxpython\gui_modules\gcmd.py", line 44,
in <module>
     from win32file import ReadFile, WriteFile
ImportError: No module named win32file

You need to install the pywin32 package.

http://sourceforge.net/projects/pywin32/

--
Glynn Clements <glynn@gclements.plus.com>

M.Onur_Kurum · October 15, 2010, 5:21pm

after installing pywin32 for python25, I get this error:

GRASS 7.0.svn> r.ipso.py
Traceback (most recent call last):
File “C:\GRASS-70-SVN/etc/gui/wxpython/gui_modules/menuform.py”, line 2253, in
task = grassTask(cmd[0])
File “C:\GRASS-70-SVN/etc/gui/wxpython/gui_modules/menuform.py”, line 371, in init
processTask(tree = etree.fromstring(getInterfaceDescription(grassModule)),
File “C:\Python25\lib\xml\etree\ElementTree.py”, line 964, in XML
return parser.close()
File “C:\Python25\lib\xml\etree\ElementTree.py”, line 1254, in close
self._parser.Parse(“”, 1) # end of data
xml.parsers.expat.ExpatError: no element found: line 1, column 0
GRASS 7.0.svn>

···

–

M.Onur Kurum
Graduate Research Assistant
Dept. of Civil, Construction, and Environmental Engineering
North Carolina State University
Campus Box 7908
2501 Stinson Drive, 428 Mann Hall
Raleigh, NC 27695-7908
Office: (919) 515-1340
Mobile: (919) 200-0665
Email: mokurum@ncsu.edu
Email: m.onur.kurum@gmail.com

Glynn_Clements1 · October 15, 2010, 10:02pm

M.Onur Kurum wrote:

after installing pywin32 for python25, I get this error:

GRASS 7.0.svn> r.ipso.py

File "C:\Python25\lib\xml\etree\ElementTree.py", line 1254, in close
self._parser.Parse("", 1) # end of data
xml.parsers.expat.ExpatError: no element found: line 1, column 0

This suggests that "r.ipso.py --interface-description" didn't produce
any output.

Try running it from the command line with the --help or
--interface-description switches. You may get a more informative error
message.

--
Glynn Clements <glynn@gclements.plus.com>