[Pythonmac-SIG] Status of Python 3.0 for Mac?

[Dav Clark]

On Dec 15, 2008, at 7:50 AM, Conan C. Albrecht wrote:

> It's easy to have two or three Python installations.  They all sit  
> in different directories and don't mess with each other.

Not entirely true.  For example, anything that compiles against python  
with a bare "-framework Python" flag will grab the (I think) Current  
dir from /Library/Frameworks/Python.framework/Versions

This is fine if you are just playing with user-installed builds, but  
will mask your system python and prevent you from installing such libs  
to it.  One such example is VTK, which has a horrendously complicated  
build system.  You can specify your system python in three separate  
places, and still it will link against the user-installed one!

But, if you're not doing anything "crazy," you're probably fine.  The  
only example I've found so far is the VTK bindings.  I've tried filing  
that as a bug with VTK twice now and failed, BTW.

Cheers,
Dav