[GRASS-dev] GRASS 6.3.0 release preparation

[Michael Barton]

All very good ideas. I'm copying others working on the wxPython GUI who
might have ideas on how to do this.

Michael


On 8/12/07 2:51 PM, "Glynn Clements" <glynn at gclements.plus.com> wrote:

> 
> Michael Barton wrote:
> 
>>> We also need to ensure that the wxPython 2.8 package *does* get used
>>> by GRASS even though it doesn't get used by anything else which uses
>>> wxPython.
>>> 
>>> Here, I set LD_LIBRARY_PATH and PYTHONPATH manually before running
>>> wxgrass. I'm not sure how easy it would be for GRASS to automate that,
>>> given that wxPython 2.8 is likely to be installed in such a way that
>>> it would normally be "invisible" to packages which use wxPython.
>> 
>> Good points. I remember some directions at the wxPython download site for
>> installing wxPython in non-standard locales and installing multiple
>> versions. Maybe we could use those suggestions to deal with this.
> 
> It can certainly be done; the issue is the effort required to do it
> reliably without user intervention.
> 
> Off the top of my head: wxgrass will need to:
> 
> 1. Catch any exceptions which arise from "import wx" (i.e. no wxPython
> as part of the standard Python installation) or "import wx.aui" (i.e.
> wxPython < 2.8).
> 
> 2. Attempt to locate wxPython 2.8, by looking for directories where it
> is likely to be found (i.e. wherever the provided binary packages put
> it).
> 
> 3. Re-invoke itself, after having updated LD_LIBRARY_PATH (or the
> equivalent for other platforms) and PYTHONPATH accordingly.
> 
> If the user has built wxPython 2.8 themselves, or is using a binary
> package installed in a location unknown to #2, they will need to set
> LD_LIBRARY_PATH (etc) and PYTHONPATH themselves; that will prevent any
> exceptions at #1 (i.e. the package will appear to be part of the
> standard wxPython installation so far as wxgrass is concerned).

__________________________________________
Michael Barton, Professor of Anthropology
Director of Graduate Studies
School of Human Evolution & Social Change
Center for Social Dynamics & Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton