--- a/bin/pvl.rrd-interfaces	Sun Sep 07 14:22:47 2014 +0300
+++ b/bin/pvl.rrd-interfaces	Sun Sep 07 14:25:14 2014 +0300
@@ -94,7 +94,7 @@
         )
 
         # sync
-        if os.path.exists(linkpath) and os.path.readlink(linkpath) == rrdpath :
+        if os.path.exists(linkpath) and os.readlink(linkpath) == rrdpath :
             continue
             
         log.info("%s: %s", linkpath, rrdpath)