[Numpy-discussion] snow leopard issues with numpy

[Chad Netzer]

On Thu, Sep 3, 2009 at 4:02 PM, Wolfgang
Kerzendorf<wkerzendorf at googlemail.com> wrote:
> my version of python is the one that comes with snow leopard: 2.6.1
> hope that helps

Huh?  I upgraded to Snow Leopard over my Leopard system (i.e not a
fresh install), and my default is python2.5:

 $ python
Python 2.5 (r25:51918, Sep 19 2006, 08:49:13)
[GCC 4.0.1 (Apple Computer, Inc. build 5341)] on darwin

Hmmm, also that looks very old...

[snooping]

Okay, so it seems I probably have an old Mac Python installed in
/Library/Frameworks, that perhaps was overriding the new Snow Leopard
python?

 $ type -a python
python is /Library/Frameworks/Python.framework/Versions/Current/bin/python
python is /usr/bin/python

 $ ls -l /Library/Frameworks/Python.framework/Versions
total 8
drwxr-xr-x   9 root  admin  306 Sep  5  2006 2.4/
drwxrwxr-x  10 root  admin  340 Dec 11  2006 2.5/
lrwxr-xr-x   1 root  admin    3 Apr  5 16:53 Current@ -> 2.5

Geez... I think I was using the MacPorts python, which I deleted after
installing SnowLeopard, and that exposed some old still installed
frameworks.

 $ sudo rm /Library/Frameworks/Python.framework/Versions/Current/bin/python

 $ type -a python
python is /usr/bin/python
 $ hash python
 $ python
Python 2.6.1 (r261:67515, Jul  7 2009, 23:51:51)
[GCC 4.2.1 (Apple Inc. build 5646)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>

Yep, got rid of the old framework executable, and now it finds the
system python executable.

Man, there is a lot of old cruft of various sort in my
/Library/Frameworks.  So, note to those upgrading to Snow Leopard,
look in your /Library?Frameworks folder for old just that may still be
overriding the newer /System/Library/Frameworks stuff:

$ ls -l /System/Library/Frameworks/Python.framework/Versions/
total 8
drwxr-xr-x   8 root  wheel  272 Aug 28 14:33 2.3/
drwxr-xr-x  12 root  wheel  408 Aug 28 15:03 2.5/
drwxr-xr-x  12 root  wheel  408 Aug 28 15:03 2.6/
lrwxr-xr-x   1 root  wheel    3 Aug 28 14:33 Current@ -> 2.6

I'd list my whole /Library/Frameworks folder as an example, but its
embarrassingly ancient and crufty. :)

Hope this helps someone.

-C