diff --git a/pyzen/core.py b/pyzen/core.py
index eca3247..1d67565 100644
--- a/pyzen/core.py
+++ b/pyzen/core.py
@@ -1,11 +1,18 @@
 from __future__ import with_statement
+from __future__ import print_function
 import sys
 import os
 import time
 import traceback
 from multiprocessing import Process, Queue
 from threading import Thread, Lock
-from Queue import Empty
+try:
+    #Python3
+    from queue import Empty
+except ImportError:
+    #Python2
+    from Queue import Empty
+    
 
 from pyzen.ui import load_ui
 
@@ -52,7 +59,7 @@ def run(self):
                     mtimes[filename] = mtime
                     continue
                 if mtime > mtimes[filename]:
-                    print >> sys.stderr, 'Detected modification of %s, restarting.' % filename
+                    print('Detected modification of %s, restarting.' % filename, file=sys.stderr)
                     self.do_reload = True
                     sys.exit(MAGIC_RETURN_CODE)
             time.sleep(_SLEEP_TIME)
diff --git a/pyzen/simple.py b/pyzen/simple.py
index 58fac50..bc64817 100644
--- a/pyzen/simple.py
+++ b/pyzen/simple.py
@@ -1,3 +1,4 @@
+from __future__ import print_function
 import sys
 import os
 import copy
@@ -28,8 +29,8 @@ def run_tests(argv):
     # Run the code
     fail = False
     try:
-        exec compiled in mod.__dict__
-    except SystemExit, e:
+        exec(compiled, mod.__dict__)
+    except SystemExit as e:
         if e.code:
             fail = True
     
diff --git a/pyzen/ui/win32/__init__.py b/pyzen/ui/win32/__init__.py
index 350c24e..b974868 100644
--- a/pyzen/ui/win32/__init__.py
+++ b/pyzen/ui/win32/__init__.py
@@ -1,3 +1,4 @@
+from __future__ import print_function
 from pyzen.ui.base import PyZenUI
 
 class Win32UI(PyZenUI):
@@ -26,7 +27,7 @@ def main():
     time.sleep(2)
     t.post_message(WM_APP, 1, 2)
     time.sleep(1)
-    print 'Sending quit'
+    print('Sending quit')
     t.quit()
     
 if __name__ == '__main__':
diff --git a/pyzen/ui/win32/wrappers.py b/pyzen/ui/win32/wrappers.py
index c1cb725..9482857 100644
--- a/pyzen/ui/win32/wrappers.py
+++ b/pyzen/ui/win32/wrappers.py
@@ -1,3 +1,4 @@
+from __future__ import print_function
 import threading
 
 from pyzen.ui.win32.types import *
@@ -67,7 +68,7 @@ def message_loop(hwnd, wndproc):
             else:
                 DispatchMessage(byref(msg))
         except WindowsError:
-            print 'Error processing msg(%s, %s, %s)'%(msg.message, msg.wParam, msg.lParam)
+            print('Error processing msg(%s, %s, %s)'%(msg.message, msg.wParam, msg.lParam))
             continue
 
 class NotifyData(Structure):