python on Mac
pecora at anvil.nrl.navy.mil
Thu Aug 28 16:18:41 CEST 2008
In article <mailman.122.1219898898.3487.python-list at python.org>,
luca.ciciriello at email.it wrote:
> Hi All.
> I'm really new in the python world, so, sorry if my question is particulary
> I've just installed on my system (Mac OS X 10.4 PPC) the python version
> 2.5.2 and all works fine.
> My next step is to install the version 3.0 (when available). I've read
> somewhere that this version will break the backward compatibility with the
> 2.x series. I know that several Mac apps (such as Xcode developement
> environment) use python for its internal functionalities. Now, my question
> is: what will appen to the Mac apps if I install the version 3.0 of python?
> Is it safe to install this version without to compromise the behaviour of
> the system?
> Thanks in advance for any answer and, again, sorry if my question is
> particulary stupid, I will learn with time.
The standard Python installs that I have put the new python in the
directory /Library/Frameworks/Python.framework/Versions/Current/ and
the additional packages in some subdirectory of that one.
The Apple installed Python is in
DO NOT TOUCH that one. Just leave it alone. You can set your
.bash_profile path to make sure your Python is used when you run your
scripts. This shouldn't affect the Apple Python. Basically, the
directories /usr/local/:/usr/local/bin/ should come *before* the system
/bin directories. So your .bash_profile should have something like this
line in it:
Bottom line: your installs and Apples' Python are separate and that's
how it should be.
Hope that helps. Others: please correct if I am wrong. Thanks.
-- Lou Pecora
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