diff --git a/appy/pod/buffers.py b/appy/pod/buffers.py
index 3bff041..96ceab7 100644
--- a/appy/pod/buffers.py
+++ b/appy/pod/buffers.py
@@ -704,7 +704,7 @@ class MemoryBuffer(Buffer):
                         res, escape = evalEntry.evaluate(context)
                         if escape: result.dumpContent(res)
                         else: result.write(res)
-                    except EvaluationError, e:
+                    except EvaluationError as e:
                         # This exception has already been treated (see the 
                         # "except" block below). Simply re-raise it when needed.
                         if self.env.raiseOnError: raise e
diff --git a/appy/shared/dav.py b/appy/shared/dav.py
index 41c043a..295fc02 100644
--- a/appy/shared/dav.py
+++ b/appy/shared/dav.py
@@ -1,7 +1,7 @@
 # ------------------------------------------------------------------------------
 import os, re, http.client, sys, stat, urllib.parse, time, socket, xml.sax
 from urllib.parse import quote
-from StringIO import StringIO
+from io import StringIO
 from mimetypes import guess_type
 from base64 import encodestring
 from appy import Object
diff --git a/appy/shared/rtf.py b/appy/shared/rtf.py
index be9ddf6..97967e5 100644
--- a/appy/shared/rtf.py
+++ b/appy/shared/rtf.py
@@ -25,7 +25,8 @@
      be strictly greater than 1.'''
 
 # -----------------------------------------------------------------------------
-import re, sys, collections, UserDict
+import re, sys, collections
+from collections import UserDict
 from io import StringIO
 
 # -----------------------------------------------------------------------------
@@ -203,9 +204,9 @@ class Table(collections.UserList):
         return infoDict
 
 # -----------------------------------------------------------------------------
-class TableRow(UserDict.UserDict):
+class TableRow(UserDict):
     def __init__(self, table):
-        UserDict.UserDict.__init__(self)
+        UserDict.__init__(self)
         self.table = table
     def __getitem__(self, key):
         '''This method "implements" row inheritance: if the current row does
@@ -214,7 +215,7 @@ class TableRow(UserDict.UserDict):
         keyError = False
         t = self.table
         if key in self:
-            res = UserDict.UserDict.__getitem__(self, key)
+            res = UserDict.__getitem__(self, key)
         else:
             # Get the parent row
             if t.parent:
diff --git a/appy/shared/utils.py b/appy/shared/utils.py
index daef14a..6a9cbf5 100644
--- a/appy/shared/utils.py
+++ b/appy/shared/utils.py
@@ -542,7 +542,7 @@ class LinesCounter:
                 if analyser.numberOfFiles:
                     analyser.printReport()
                     total += analyser.numberOfLines()
-        print 'Total (including commented and blank): ***', total, '***'
+        print('Total (including commented and blank): ***', total, '***')
 
     def isExcluded(self, path):
         '''Must p_path be excluded from the analysis?'''