Execute Python Script From Non-System Installed Python
<p>I currently have python 2.7.1 installed on my Mac and there are some features of 2.7.3 that I would like to use with my current Python development.  I've downloaded the and extracted the tar ball into my /Users/mark/Python-2.7.3 but when I run my Python script how do I tell it to use the new 2.7.3 version instead of the system installed 2.7.1?</p>

<pre><code>/Users/mark/Python-2.7.3
MacBook-Pro:Python-2.7.3 mark$ ls
Demo        Lib     Objects     README      install-sh
Doc         Mac     PC          RISCOS      pyconfig.h.in
Grammar     Makefile.pre.in PCbuild     Tools       setup.py
Include     Misc        Parser      configure
LICENSE     Modules     Python      configure.in
</code></pre>
