[GRASS-dev] GRASS6.4 Ptyhon scripts- module

[Glynn Clements]

António Rocha wrote:

> I was developing a special import script (for a designated dataset) and 
> I used r.in.aster Python Script (GRASS7) as a based for this Python 
> script in GRASS6.4.. It compiled but I got this error:
> 
> make: Entering directory `/home/anrr/Desktop/dwe_devep/r.in.globcover.py'
> if [ ! -d /usr/local/grass-6.4.0svn/scripts ]; then mkdir -p 
> /usr/local/grass-6.4.0svn/scripts; fi
> /usr/bin/install -c  r.in.globcover.py 
> /usr/local/grass-6.4.0svn/scripts/r.in.globcover.py
> make htmlscript scriptstrings
> make[1]: Entering directory `/home/anrr/Desktop/dwe_devep/r.in.globcover.py'
> make /usr/local/grass-6.4.0svn/docs/html/r.in.globcover.py.html 
> HTMLSRC=/usr/local/grass-6.4.0svn/scripts/r.in.globcover.py
> make[2]: Entering directory `/home/anrr/Desktop/dwe_devep/r.in.globcover.py'
> if [ "/usr/local/grass-6.4.0svn/scripts/r.in.globcover.py" != "" ] ; 
> then GISRC=/usr/local/grass-6.4.0svn/demolocation/grassrc64 
> GISBASE=/usr/local/grass-6.4.0svn 
> PATH="/usr/local/grass-6.4.0svn/bin:$PATH" 
> LD_LIBRARY_PATH="/usr/local/grass-6.4.0svn/bin:/usr/local/grass-6.4.0svn/lib:" 
> LC_ALL=C /usr/local/grass-6.4.0svn/scripts/r.in.globcover.py 
> --html-description < /dev/null | grep -v '</body>\|</html>' > 
> r.in.globcover.py.tmp.html ; true ; fi
> Traceback (most recent call last):
>   File "/usr/local/grass-6.4.0svn/scripts/r.in.globcover.py", line 50, 
> in <module>
>     import grass.script as grass
> *ImportError: No module named grass.script*
> 
> I thought GRASS6.4 Python's script already had this module. Is not 
> available?

6.4 has the Python modules, but the build system doesn't support
Python scripts (it doesn't set PYTHONPATH when executing commands).

You will need to modify the definition of htmldesc in
include/Make/Html.make to set PYTHONPATH to include
$(GISBASE)/etc/python (making it work on Windows isn't
straightforward, so I don't expect it to change in 6.x).

> Just one last question: How can I retrieve image projection, using a 
> Python script, with tghe same information-structure I get when I use: 
> grass.read_command('g.proj', flags = 'jf').strip()

grass.read_command('g.proj', flags = 'jf', georef = filename).strip()

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