I've developed a python script that uses the GRASS python module grass.py. When I use the options --help (displays command help), --ui (starts up a gui form for my command), or --interface-description (xml description of the gui), I do not see any output. Without --interface-description, I am not able to use my script in QGIS Toolbox.
Based on a discussion on the GRASS user ML (see http://n2.nabble.com/Problems-with-GRASS-python-code-in-osgeo4w-td3122413.html), it appears that the current version of OSGEO4W needs http://trac.osgeo.org/grass/changeset/37075 and there seems to be problems on how paths are specified in batch files.
