diff --git a/Demo/pdist/FSProxy.py b/Demo/pdist/FSProxy.py
index a1ab635..dad4015 100755
--- a/Demo/pdist/FSProxy.py
+++ b/Demo/pdist/FSProxy.py
@@ -87,7 +87,7 @@
                     fs = macfs.FSSpec(name)
                     c, t = fs.GetCreatorType()
                     if t != 'TEXT': return 0
-                except macfs.error, msg:
+                except macfs.error as msg:
                     print "***", name, msg
                     return 0
         else:
diff --git a/Demo/pdist/cmdfw.py b/Demo/pdist/cmdfw.py
index e2edd0a..47d13bc 100755
--- a/Demo/pdist/cmdfw.py
+++ b/Demo/pdist/cmdfw.py
@@ -42,7 +42,7 @@
         if args is None: args = sys.argv[1:]
         try:
             opts, args = getopt.getopt(args, self.GlobalFlags)
-        except getopt.error, msg:
+        except getopt.error as msg:
             return self.usage(msg)
         self.options(opts)
         if not args:
@@ -62,7 +62,7 @@
                 flags = ''
             try:
                 opts, args = getopt.getopt(args[1:], flags)
-            except getopt.error, msg:
+            except getopt.error as msg:
                 return self.usage(
                         "subcommand %s: " % cmd + str(msg))
             self.ready()
diff --git a/Demo/pdist/cmptree.py b/Demo/pdist/cmptree.py
index fa06f5f..5031869 100755
--- a/Demo/pdist/cmptree.py
+++ b/Demo/pdist/cmptree.py
@@ -135,7 +135,7 @@
 def sendfile(local, remote, name):
     try:
         remote.create(name)
-    except (IOError, os.error), msg:
+    except (IOError, os.error) as msg:
         print "cannot create:", msg
         return
 
@@ -171,7 +171,7 @@
 def recvfile_real(local, remote, name):
     try:
         local.create(name)
-    except (IOError, os.error), msg:
+    except (IOError, os.error) as msg:
         print "cannot create:", msg
         return
 
diff --git a/Demo/pdist/cvslock.py b/Demo/pdist/cvslock.py
index 8f6d008..6484e71 100755
--- a/Demo/pdist/cvslock.py
+++ b/Demo/pdist/cvslock.py
@@ -129,7 +129,7 @@
                 self.lockdir = self.cvslck
                 os.mkdir(self.cvslck, 0777)
                 return
-            except os.error, msg:
+            except os.error as msg:
                 self.lockdir = None
                 if msg[0] == EEXIST:
                     try:
@@ -234,7 +234,7 @@
         for r in repositories:
             try:
                 locks.append(WriteLock(r, 0))
-            except Locked, instance:
+            except Locked as instance:
                 del locks
                 break
         else:
diff --git a/Demo/pdist/rrcs.py b/Demo/pdist/rrcs.py
index 4d23e6c..540d296 100755
--- a/Demo/pdist/rrcs.py
+++ b/Demo/pdist/rrcs.py
@@ -22,7 +22,7 @@
             raise getopt.error, "unknown command"
         coptset, func = commands[cmd]
         copts, files = getopt.getopt(rest, coptset)
-    except getopt.error, msg:
+    except getopt.error as msg:
         print msg
         print "usage: rrcs [options] command [options] [file] ..."
         print "where command can be:"
@@ -41,7 +41,7 @@
     for fn in files:
         try:
             func(x, copts, fn)
-        except (IOError, os.error), msg:
+        except (IOError, os.error) as msg:
             print "%s: %s" % (fn, msg)
 
 def checkin(x, copts, fn):