[GRASS-dev] adding volume layer in 6.4.3 and 7 binaries

Hamish hamish_b at yahoo.com
Wed Aug 29 03:15:22 PDT 2012

Anna wrote:
> Unable to fetch interface description for command
> 'd.rast3d'.
> Details: [Errno 2] No such file or directory
> So it cannot find the command. I couldn't find any solution,
> maybe someone else knows what's going on?
> I found related ticket here [1].
> [1] http://trac.osgeo.org/grass/ticket/1515

see also https://trac.osgeo.org/grass/ticket/1692 and friends.

d.rast3d.py fails because it is not in the PATH.

on the first pass of a grass script it gets very quickly to the
g.parser module, which then *re-runs* the same script but with the
ARGS_PARSED environment variable set so that on the second pass it
runs the script body and not just g.parser.

If the module is not in the PATH, then when g.region tries to run it
it can't find it by name. I guess the full path in $0 either isn't
there or gets stripped off?

The common module scripts are all installed in the PATH, so it shouldn't
be a problem to find them (except on wingrass it is, see #1692), for
the few GUI-helper scripts and "etc" helper scripts like i.oif has it
is worse since the script needs to do like
PATH="$PATH:$GISBASE/etc/i.oif"; export PATH
before running g.parser if it wants the helper scripts to be found.
(actually that's a fake example as i.oif's helper scripts don't use

For the python GUI helper scripts it is even worse still because AFAIU
include/Make/Python.make is not doing all the things in GRASS 6 that
Script.make (exclusively for shell scripts) does.

For WinGrass it's even worse again as we need .bat wrapper scripts for
the shell scripts in the %PATH% which point to the right place. For python
text scripts on WinGrass hopefully the minor version of the python it
happens to find at run time doesn't matter too much as long as it's 2.4+.

Q: Is anyone using python addons scripts with GRASS 6.4.2? does it work
fine? not at all?   ??   needing to be at in the main scripts PATH

It's certainly possible to fix all this, but best worked on when your
brain sugar is at high levels. :)


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