--- cluster.py.old	2010-10-01 14:41:55.000000000 +0200
+++ cluster.py	2010-10-01 14:42:32.000000000 +0200
@@ -130,7 +130,7 @@
    format =  " %%%is |" % maxlen
    format = "|" + format*colcount
    for row in list:
-      print format % tuple(row)
+      print (format % tuple(row))
 
 def magnitude(a):
    "calculates the magnitude of a vecor"
@@ -239,12 +239,12 @@
       """
       Pretty-prints this cluster. Useful for debuging
       """
-      print depth*"   " + "[level %s]" % self.__level
+      print (depth*"   " + "[level %s]" % self.__level)
       for item in self.__items:
          if isinstance(item, Cluster):
             item.display(depth+1)
          else:
-            print depth*"   "+"%s" % item
+            print (depth*"   "+"%s" % item)
 
    def topology(self):
       """
--- cluster.py.old	2010-10-01 14:48:54.000000000 +0200
+++ cluster.py	2010-10-01 14:49:21.000000000 +0200
@@ -429,7 +429,7 @@
       elif method == 'uclus':
          self.linkage = self.uclusDistance
       else:
-         raise ValueError, 'distance method must be one of single, complete, average of uclus'
+         raise ValueError('distance method must be one of single, complete, average of uclus')
 
    def uclusDistance(self, x, y):
       """