README: bump Python requirement to 2.6

diff --git a/README b/README
index f2df12c..40354ec 100644 (file)
--- a/README
+++ b/README
@@ -803,7 +803,7 @@ Prerequisites
     <http://code.google.com/p/protobuf-c/>
 
   * libpython (optional)
-    Used by the `python' plugin. Currently, Python 2.3 and later and Python 3
+    Used by the `python' plugin. Currently, Python 2.6 and later and Python 3
     are supported.
     <http://www.python.org/>