[GRASS-dev] trying wxgrass on Windows

[Moritz Lennert]

On Fri, June 15, 2007 10:07, Michael Barton wrote:
> The new wxPython GRASS interface  (AKA wxgrass) is pretty much equal in
> functionality to the standard TclTk interface, and so is ready for regular
> testing.

I decided to give it a try on Windows, directly launching 'python
wxgui.py' from within a grass session in cmd.exe.

There were quite a few errors, of which I don't know whether they are due
to the fact that this is windows (the first is) or because of path
definition issues or similar specificities.

In cmd.py you have the following function call on line 89:

self.module = subprocess.Popen(self.cmd,
                          stdin=subprocess.PIPE,
                          stdout=subprocess.PIPE,
                          stderr=subprocess.PIPE,
                          close_fds=True)

However, close_fds is not supported on Windows...

I can solve this by setting usePopenClass = False at line 25.

I then get (end of the traceback):

  File "c:\grass\grass-6.3.cvs\etc\wx\gui_modules\mapdisp.py", line 1313,
in __init__
    self.projinfo = self.Map.ProjInfo()
  File "c:\grass\grass-6.3.cvs\etc\wx\gui_modules\render.py", line 460, in
ProjInfo
    p = cmd.Command(cmdlist)
  File "c:\grass\grass-6.3.cvs\etc\wx\gui_modules\cmd.py", line 134, in
__init__

    (self.cmd, wait, self.returncode))
TypeError: int argument required

Line 134 is part of a debug message, so I can just comment it out
(although we should try to identify the reason for the error). This then
leads to the wxgrass windows opening.

Whenever I try to launch a command from the menu I get something like this:

  File "c:\grass\grass-6.3.cvs\etc\wx\wxgui.py", line 377, in OnMenuCmd
    menuform.GUI().ParseCommand(cmd,gmpath, parentframe=self)
  File "c:\grass\grass-6.3.cvs\etc\wx\gui_modules\menuform.py", line 1110,
in ParseCommand
    xml.sax.parseString( getInterfaceDescription( cmd ) , handler )
  File "c:\grass\grass-6.3.cvs\etc\wx\gui_modules\menuform.py", line 1059,
in getInterfaceDescription
    cmdout = p.sub( gmpath+r'/grass-interface.dtd', cmdout)
  File "C:\Programme\Python25\lib\re.py", line 261, in _subx
    template = _compile_repl(template, pattern)
  File "C:\Programme\Python25\lib\re.py", line 248, in _compile_repl
    raise error, v # invalid expression
sre_constants.error: bad group name

Similar error when adding a vector or raster layer:

  File "c:\grass\grass-6.3.cvs\etc\wx\wxgui.py", line 693, in AddRaster
    self.curr_page.maptree.AddLayer('raster')
  File "C:\GRASSSRC\gui\gui_modules\wxgui_utils.py", line 446, in AddLayer
    self.PropertiesDialog(layer)
  File "C:\GRASSSRC\gui\gui_modules\wxgui_utils.py", line 459, in
PropertiesDialog
    menuform.GUI().ParseCommand('d.rast', gmpath,
completed=(self.getOptData,layer,params), parentframe=self)
  File "c:\grass\grass-6.3.cvs\etc\wx\gui_modules\menuform.py", line 1110,
in ParseCommand
    xml.sax.parseString( getInterfaceDescription( cmd ) , handler )
  File "c:\grass\grass-6.3.cvs\etc\wx\gui_modules\menuform.py", line 1059,
in getInterfaceDescription
    cmdout = p.sub( gmpath+r'/grass-interface.dtd', cmdout)
  File "C:\Programme\Python25\lib\re.py", line 261, in _subx
    template = _compile_repl(template, pattern)
  File "C:\Programme\Python25\lib\re.py", line 248, in _compile_repl
    raise error, v # invalid expression
sre_constants.error: bad group name


Moritz