On Dec 2, 2009, at 10:20 AM, William Kyngesburye wrote:

> On Dec 2, 2009, at 11:43 AM, Adam Dershowitz, Ph.D., P.E. wrote:
> 
>> While, when I run William Kyngesburye's build I see this in the terminal:
>> Rebuilding Addon menu...
>> Python 2.6.4 found.
>> 
>> But, at the command line, if I just do python, I end up with Apple version 
>> 2.6.1.  I will also ask about this on the macports list, which is very 
>> active.
>> 
>> For what it is worth, I know that in the past, with 10.5, and Macports 
>> installed I was able to run the wxpython version, but I can't seem to get it 
>> to work now.  
> 
> Where does MacPorts install its Python?  And is it a frameowrk build?  I know 
> it normally keeps everything isolated in its own folder, but maybe Python is 
> different, if it's a framework.

It does put it into /opt/local.  Yes, it is a framework build, but in the 
macports directories.  So it puts a few things into /opt/local/bin and 
opt/local/lib but most of it goes into 
/opt/local/Library/Frameworks/Python.framework

> 
> The way I have the python detection setup in the OSX startup, the first 
> priority is always the same major.minor version it was built with, and for my 
> Snow build it's 2.6.  Then the priorities are:
> 
> $GRASS_PYTHON setting
> in $PATH
> /Library/Frameworks/Python.framework
> System python
> 
> So, if you have the system python in your PATH (running python from a 
> Terminal), somehow that is failing, and if MacPorts python is in 
> /Library/Frameworks, it finds that.
> 
> What does this give you:
> 
> type -p pythonw2.6

>type -p pythonw2.6
/opt/local/bin/pythonw2.6

> 
> and this:
> 
> `type -p pythonw2.6` -V

>`type -p pythonw2.6` -V
Python 2.6.4


> 
> Then we get to the architectures.  Does MacPorts build universal by default 
> or just the default ssytem architecture?  Try:
> 
> file /path/to/macports/python/bin/python

>file /opt/local/bin/python2.6
/opt/local/bin/python2.6: Mach-O 64-bit executable x86_64

> 
> If it's only x86_64 (default on Snow), then yes wxpython will fail, as that 
> is only possible 32bit.
> 

So, yes this one is x84_64 only.  

But this one:

>file /opt/local/bin/python
/opt/local/bin/python: Mach-O universal binary with 3 architectures
/opt/local/bin/python (for architecture x86_64):        Mach-O 64-bit 
executable x86_64
/opt/local/bin/python (for architecture i386):  Mach-O executable i386
/opt/local/bin/python (for architecture ppc7400):       Mach-O executable ppc

is not.  

And I was able to determine that python_select is just a script.  What it does 
to select the apple version of python is just the following:

ln -sf python26-apple /opt/local/etc/select/python/current
ln -snf /usr/bin/python2.6 /opt/local/bin/python
ln -snf /usr/bin/pythonw2.6 /opt/local/bin/pythonw
ln -snf /usr/bin/python2.6-config /opt/local/bin/python-config
rm -f /opt/local/bin/idle
ln -snf /usr/bin/pydoc2.6 /opt/local/bin/pydoc
ln -snf /usr/bin/smtpd2.6.py /opt/local/bin/smtpd.py
rm -f /opt/local/share/man/man1/python.1
ln -snf /usr/share/man/man1/python2.6.1.gz /opt/local/share/man/man1/python.1.gz
rm -f /opt/local/Library/Frameworks/Python.framework/Versions/Current
rm -f /opt/local/Library/Frameworks/Python.framework/Headers
rm -f /opt/local/Library/Frameworks/Python.framework/Resources
rm -f /opt/local/Library/Frameworks/Python.framework/Python

So it looks to me like it should be creating the correct links.  So if I do 
this:
>which python
/opt/local/bin/python
I do get the link in macports, but that is just a link to the apple version.  

I just noticed something however.  Are you actually searching for "python" or 
"python2.6" as your first priority?  The reason that I am asking is that 
"python" does point to the apple version. But python2.6 points to the macports 
version.  I wonder if that is the problem?
Finally, you said that you actually start by trying $GRASS_PYTHON.  If, my my 
.profile,  I just point that to the system python should that fix this issue?

Thanks,

--Adam_______________________________________________
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