(BTW: Thanks for the *fast* response to my Circle question earlier!)

This is a more general question: should Sage or other large systems
use the Mac frameworks on Macs?  Or more generally, shared libraries
on other systems/distros?

I ask because I recently downloaded GRASS, a large GIS system.  There
were three Mac versions.  I tried one of the all-in-on isolated
packages and it failed.  I then asked the forum about what the
tradeoffs were.

The Framework based solution was the one I went with.  It gave me
several advantages: the libraries used by GRASS were made generally
available, rather than being hidden in the application.  In GIS this
is quite a win.

It also solved the incompatibilities between various versions of the
python libraries, making it work better with the rest of the system.
With Python this is a huge win .. as much as I like Python, it seems
to have a great deal of difficulty with version management, both with
the python version and the versions of the libraries.

So specifically, if I install Sage, I'd like the packages underneath
(numpy etc) to be available to the system running from a vanilla
python command line or script.

I may have this all wrong, being a newbie to python packaging .. but
if I'm right, wouldn't it be best for Sage to be able to use the
existing system, using shared libraries/Mac-Frameworks?

I can guess the answer: its just too hard to manage compatibility
problems!

   -- Owen


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