add note about python versions

website/index.html

@@ -170,9 +170,9 @@ Server running at http://127.0.0.1:8000/</pre>
         Node eventually wants to support all POSIX operating systems
         (including Windows with MinGW) but at the moment it is only being
         tested on <b>Linux</b>, <b>Macintosh</b>, and <b>FreeBSD</b>. The
-        build system requires Python.  V8, on which Node is built,
-        supports only IA-32 and ARM processors. V8 is included in the Node
-        distribution. There are no dependencies.
+        build system requires Python 2.4 or better.  V8, on which Node is
+        built, supports only IA-32 and ARM processors. V8 is included in the
+        Node distribution. There are no dependencies.
       </p>
       
       <pre class="sh_none">