[GRASS-user] GRASS, ArcGIS, and Python incompatibilties

Glynn Clements glynn at gclements.plus.com
Fri Jun 29 12:49:00 PDT 2012

Michael Barton wrote:

> I thought I'd seen this somewhere on the list, but I can't seem to find
> it. If there is a posted answer, perhaps someone could point me to it.
> Otherwise, hopefully, someone can offer an answer.
> I'm working with a colleague who has Windows 7 and ArcGIS installed. He
> installed GRASS for Windows, but it won't launch due to some combination
> of Python/wxPython incompatibility. We're pretty sure that it has to do
> with the version of Python he had to install with ArcGIS. The ArcGIS
> Python is 2.6, but GRASS for Windows comes with Python 2.7. Is there
> some configuration setting to get around this?

GRASS 7 should be able to use any of 2.5, 2.6, or 2.7. The Windows
installer tries to force the use of a bundled version, so you may need
to undo that first (remove it's bundled Python, unset any PYTHONHOME
or PYTHONPATH variables, etc).

Glynn Clements <glynn at gclements.plus.com>

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