Modify examples to be both Python 2 and 3 compatible

For removing dependency on 2to3

37 files changed, 368 insertions, 388 deletions

diff --git a/Examples/python/callback/runme.py b/Examples/python/callback/runme.py
index 345a3eb6e..41deb8386 100644
--- a/Examples/python/callback/runme.py
+++ b/Examples/python/callback/runme.py
@@ -11,7 +11,7 @@ class PyCallback(example.Callback):
         example.Callback.__init__(self)
 
     def run(self):
-        print "PyCallback.run()"
+        print("PyCallback.run()")
 
 # Create an Caller instance
 
@@ -20,8 +20,8 @@ caller = example.Caller()
 # Add a simple C++ callback (caller owns the callback, so
 # we disown it first by clearing the .thisown flag).
 
-print "Adding and calling a normal C++ callback"
-print "----------------------------------------"
+print("Adding and calling a normal C++ callback")
+print("----------------------------------------")
 
 callback = example.Callback()
 callback.thisown = 0
@@ -29,9 +29,9 @@ caller.setCallback(callback)
 caller.call()
 caller.delCallback()
 
-print
-print "Adding and calling a Python callback"
-print "------------------------------------"
+print("")
+print("Adding and calling a Python callback")
+print("------------------------------------")
 
 # Add a Python callback (caller owns the callback, so we
 # disown it first by calling __disown__).
@@ -40,9 +40,9 @@ caller.setCallback(PyCallback().__disown__())
 caller.call()
 caller.delCallback()
 
-print
-print "Adding and calling another Python callback"
-print "------------------------------------------"
+print("")
+print("Adding and calling another Python callback")
+print("------------------------------------------")
 
 # Let's do the same but use the weak reference this time.
 
@@ -53,5 +53,5 @@ caller.delCallback()
 
 # All done.
 
-print
-print "python exit"
+print("")
+print("python exit")
diff --git a/Examples/python/class/runme.py b/Examples/python/class/runme.py
index 34d21505c..adade7468 100644
--- a/Examples/python/class/runme.py
+++ b/Examples/python/class/runme.py
@@ -7,15 +7,15 @@ import example
 
 # ----- Object creation -----
 
-print "Creating some objects:"
+print("Creating some objects:")
 c = example.Circle(10)
-print "    Created circle", c
+print("    Created circle %s" % c)
 s = example.Square(10)
-print "    Created square", s
+print("    Created square %s" % s)
 
 # ----- Access a static member -----
 
-print "\nA total of", example.cvar.Shape_nshapes, "shapes were created"
+print("\nA total of %d shapes were created" % example.cvar.Shape_nshapes)
 
 # ----- Member data access -----
 
@@ -27,25 +27,25 @@ c.y = 30
 s.x = -10
 s.y = 5
 
-print "\nHere is their current position:"
-print "    Circle = (%f, %f)" % (c.x, c.y)
-print "    Square = (%f, %f)" % (s.x, s.y)
+print("\nHere is their current position:")
+print("    Circle = (%f, %f)" % (c.x, c.y))
+print("    Square = (%f, %f)" % (s.x, s.y))
 
 # ----- Call some methods -----
 
-print "\nHere are some properties of the shapes:"
+print("\nHere are some properties of the shapes:")
 for o in [c, s]:
-    print "   ", o
-    print "        area      = ", o.area()
-    print "        perimeter = ", o.perimeter()
+    print("    %s" % o)
+    print("        area      = %s" % o.area())
+    print("        perimeter = %s" % o.perimeter())
 # prevent o from holding a reference to the last object looked at
 o = None
 
-print "\nGuess I'll clean up now"
+print("\nGuess I'll clean up now")
 
 # Note: this invokes the virtual destructor
 del c
 del s
 
-print example.cvar.Shape_nshapes, "shapes remain"
-print "Goodbye"
+print("%d shapes remain" % example.cvar.Shape_nshapes)
+print("Goodbye")
diff --git a/Examples/python/constants/runme.py b/Examples/python/constants/runme.py
index 415d1adc4..808bf1fe6 100644
--- a/Examples/python/constants/runme.py
+++ b/Examples/python/constants/runme.py
@@ -2,22 +2,24 @@
 
 import example
 
-print "ICONST  =", example.ICONST, "(should be 42)"
-print "FCONST  =", example.FCONST, "(should be 2.1828)"
-print "CCONST  =", example.CCONST, "(should be 'x')"
-print "CCONST2 =", example.CCONST2, "(this should be on a new line)"
-print "SCONST  =", example.SCONST, "(should be 'Hello World')"
-print "SCONST2 =", example.SCONST2, "(should be '\"Hello World\"')"
-print "EXPR    =", example.EXPR, "(should be 48.5484)"
-print "iconst  =", example.iconst, "(should be 37)"
-print "fconst  =", example.fconst, "(should be 3.14)"
+print("ICONST  = %s (should be 42)" % example.ICONST)
+print("FCONST  = %s (should be 2.1828)" % example.FCONST)
+print("CCONST  = %s (should be 'x')" % example.CCONST)
+print("CCONST2 = %s (this should be on a new line)" % example.CCONST2)
+print("SCONST  = %s (should be 'Hello World')" % example.SCONST)
+print("SCONST2 = %s (should be '\"Hello World\"')" % example.SCONST2)
+print("EXPR    = %s (should be 48.5484)" % example.EXPR)
+print("iconst  = %s (should be 37)" % example.iconst)
+print("fconst  = %s (should be 3.14)" % example.fconst)
 
 try:
-    print "EXTERN = ", example.EXTERN, "(Arg! This shouldn't print anything)"
+    x = example.EXTERN
+    print("%s (Arg! This shouldn't print anything)" % x)
 except AttributeError:
-    print "EXTERN isn't defined (good)"
+    print("EXTERN isn't defined (good)")
 
 try:
-    print "FOO    = ", example.FOO, "(Arg! This shouldn't print anything)"
+    x = example.FOO
+    print("%s (Arg! This shouldn't print anything)" % x)
 except AttributeError:
-    print "FOO isn't defined (good)"
+    print("FOO isn't defined (good)")
diff --git a/Examples/python/contract/runme.py b/Examples/python/contract/runme.py
index ce01e5a1d..ec0aceb45 100644
--- a/Examples/python/contract/runme.py
+++ b/Examples/python/contract/runme.py
@@ -7,15 +7,15 @@ import example
 x = 42
 y = 105
 g = example.gcd(x, y)
-print "The gcd of %d and %d is %d" % (x, y, g)
+print("The gcd of %d and %d is %d" % (x, y, g))
 
 # Manipulate the Foo global variable
 
 # Output its current value
-print "Foo = ", example.cvar.Foo
+print("Foo = %s" % example.cvar.Foo)
 
 # Change its value
 example.cvar.Foo = 3.1415926
 
 # See if the change took effect
-print "Foo = ", example.cvar.Foo
+print("Foo = %s" % example.cvar.Foo)
diff --git a/Examples/python/docstrings/runme.py b/Examples/python/docstrings/runme.py
index c25d291b6..76386d214 100644
--- a/Examples/python/docstrings/runme.py
+++ b/Examples/python/docstrings/runme.py
@@ -2,4 +2,4 @@
 
 import example
 
-print "example.Foo.bar.__doc__  =", repr(example.Foo.bar.__doc__), "(Should be 'No comment')"
+print("example.Foo.bar.__doc__ = %s (Should be 'No comment')" % repr(example.Foo.bar.__doc__))
diff --git a/Examples/python/doxygen/runme.py b/Examples/python/doxygen/runme.py
index e23528874..657535cc2 100644
--- a/Examples/python/doxygen/runme.py
+++ b/Examples/python/doxygen/runme.py
@@ -5,24 +5,24 @@
 
 import example
 
-print "Creating some objects:"
+print("Creating some objects:")
 c = example.MakeCircle(10)
-print "    Created circle", c
+print("    Created circle %s" % c)
 s = example.MakeSquare(10)
-print "    Created square", s
+print("    Created square %s" % s)
 r = example.MakeRectangleInt(10, 20)
-print "    Created rectangle", r
+print("    Created rectangle %s" % r)
 
-print "\nHere are some properties of the shapes:"
+print("\nHere are some properties of the shapes:")
 for o in [c, s, r]:
-    print "   ", o
-    print "        area      = ", o.area()
-    print "        perimeter = ", o.perimeter()
+    print("    %s" % o)
+    print("        area      = %s" % o.area())
+    print("        perimeter = %s" % o.perimeter())
 
-print "\nRunning pydoc, this is the equivalent to executing: pydoc -w ./example.py"
+print("\nRunning pydoc, this is the equivalent to executing: pydoc -w ./example.py")
 
 import pydoc
 
 pydoc.writedoc("example")
 
-print "Open example.html in your browser to view the generated python docs"
+print("Open example.html in your browser to view the generated python docs")
diff --git a/Examples/python/enum/runme.py b/Examples/python/enum/runme.py
index def01b147..4920c1dcf 100644
--- a/Examples/python/enum/runme.py
+++ b/Examples/python/enum/runme.py
@@ -5,24 +5,24 @@ import example
 # ----- Object creation -----
 
 # Print out the value of some enums
-print "*** color ***"
-print "    RED    =", example.RED
-print "    BLUE   =", example.BLUE
-print "    GREEN  =", example.GREEN
+print("*** color ***")
+print("    RED    = %s" % example.RED)
+print("    BLUE   = %s" % example.BLUE)
+print("    GREEN  = %s" % example.GREEN)
 
-print "\n*** Foo::speed ***"
-print "    Foo_IMPULSE   =", example.Foo.IMPULSE
-print "    Foo_WARP      =", example.Foo.WARP
-print "    Foo_LUDICROUS =", example.Foo.LUDICROUS
+print("\n*** Foo::speed ***")
+print("    Foo_IMPULSE   = %s" % example.Foo.IMPULSE)
+print("    Foo_WARP      = %s" % example.Foo.WARP)
+print("    Foo_LUDICROUS = %s" % example.Foo.LUDICROUS)
 
-print "\nTesting use of enums with functions\n"
+print("\nTesting use of enums with functions\n")
 
 example.enum_test(example.RED, example.Foo.IMPULSE)
 example.enum_test(example.BLUE, example.Foo.WARP)
 example.enum_test(example.GREEN, example.Foo.LUDICROUS)
 example.enum_test(1234, 5678)
 
-print "\nTesting use of enum with class method"
+print("\nTesting use of enum with class method")
 f = example.Foo()
 
 f.enum_test(example.Foo.IMPULSE)
diff --git a/Examples/python/exception/runme.py b/Examples/python/exception/runme.py
index 7fae49030..7b5c10d19 100644
--- a/Examples/python/exception/runme.py
+++ b/Examples/python/exception/runme.py
@@ -7,36 +7,36 @@ import example
 t = example.Test()
 try:
     t.unknown()
-except RuntimeError, e:
-    print "incomplete type", e.args[0]
+except RuntimeError as e:
+    print("incomplete type %s" % e.args[0])
 
 try:
     t.simple()
-except RuntimeError, e:
-    print e.args[0]
+except RuntimeError as e:
+    print(e.args[0])
 
 try:
     t.message()
-except RuntimeError, e:
-    print e.args[0]
+except RuntimeError as e:
+    print(e.args[0])
 
 if not example.is_python_builtin():
     try:
         t.hosed()
-    except example.Exc, e:
-        print e.code, e.msg
+    except example.Exc as e:
+        print("%s %s" % (e.code, e.msg))
 else:
     try:
         t.hosed()
-    except BaseException, e:
+    except BaseException as e:
         # Throwing builtin classes as exceptions not supported (-builtin
         # option)
-        print e
+        print(e)
 
 for i in range(1, 4):
     try:
         t.multi(i)
-    except RuntimeError, e:
-        print e.args[0]
-    except example.Exc, e:
-        print e.code, e.msg
+    except RuntimeError as e:
+        print(e.args[0])
+    except example.Exc as e:
+        print("%s %s" % (e.code, e.msg))
diff --git a/Examples/python/exceptproxy/runme.py b/Examples/python/exceptproxy/runme.py
index 970d6201d..d25fb6de6 100644
--- a/Examples/python/exceptproxy/runme.py
+++ b/Examples/python/exceptproxy/runme.py
@@ -2,44 +2,44 @@
 import example
 
 if example.is_python_builtin():
-    print "Skipping example: -builtin option does not support %exceptionclass"
+    print("Skipping example: -builtin option does not support %exceptionclass")
     exit(0)
 
 q = example.intQueue(10)
 
-print "Inserting items into intQueue"
+print("Inserting items into intQueue")
 
-print type(example.FullError)
+print(type(example.FullError))
 
 try:
     for i in range(0, 100):
         q.enqueue(i)
-except example.FullError, e:
-    print "Maxsize is", e.maxsize
+except example.FullError as e:
+    print("Maxsize is %s" % e.maxsize)
 
-print "Removing items"
+print("Removing items")
 
 try:
-    while 1:
+    while True:
         q.dequeue()
-except example.EmptyError, e:
+except example.EmptyError as e:
     pass
 
 
 q = example.doubleQueue(1000)
 
-print "Inserting items into doubleQueue"
+print("Inserting items into doubleQueue")
 
 try:
     for i in range(0, 10000):
         q.enqueue(i * 1.5)
-except example.FullError, e:
-    print "Maxsize is", e.maxsize
+except example.FullError as e:
+    print("Maxsize is %s" % e.maxsize)
 
-print "Removing items"
+print("Removing items")
 
 try:
-    while 1:
+    while True:
         q.dequeue()
-except example.EmptyError, e:
+except example.EmptyError as e:
     pass
diff --git a/Examples/python/extend/runme.py b/Examples/python/extend/runme.py
index e97358b99..d7e626ec2 100644
--- a/Examples/python/extend/runme.py
+++ b/Examples/python/extend/runme.py
@@ -21,9 +21,9 @@ class CEO(example.Manager):
 # the director wrappers to call CEO.getPosition.
 
 e = CEO("Alice")
-print e.getName(), "is a", e.getPosition()
-print "Just call her \"%s\"" % e.getTitle()
-print "----------------------"
+print("%s is a %s" % (e.getName(), e.getPosition()))
+print("Just call her \"%s\"" % e.getTitle())
+print("----------------------")
 
 
 # Create a new EmployeeList instance.  This class does not have a C++
@@ -40,7 +40,7 @@ list = example.EmployeeList()
 
 e = e.__disown__()
 list.addEmployee(e)
-print "----------------------"
+print("----------------------")
 
 # Now we access the first four items in list (three are C++ objects that
 # EmployeeList's constructor adds, the last is our CEO). The virtual
@@ -59,13 +59,13 @@ print "----------------------"
 # passes down through the C++ director class to the Python implementation
 # in CEO. All this routing takes place transparently.
 
-print "(position, title) for items 0-3:"
+print("(position, title) for items 0-3:")
 
-print "  %s, \"%s\"" % (list.get_item(0).getPosition(), list.get_item(0).getTitle())
-print "  %s, \"%s\"" % (list.get_item(1).getPosition(), list.get_item(1).getTitle())
-print "  %s, \"%s\"" % (list.get_item(2).getPosition(), list.get_item(2).getTitle())
-print "  %s, \"%s\"" % (list.get_item(3).getPosition(), list.get_item(3).getTitle())
-print "----------------------"
+print("  %s, \"%s\"" % (list.get_item(0).getPosition(), list.get_item(0).getTitle()))
+print("  %s, \"%s\"" % (list.get_item(1).getPosition(), list.get_item(1).getTitle()))
+print("  %s, \"%s\"" % (list.get_item(2).getPosition(), list.get_item(2).getTitle()))
+print("  %s, \"%s\"" % (list.get_item(3).getPosition(), list.get_item(3).getTitle()))
+print("----------------------")
 
 # Time to delete the EmployeeList, which will delete all the Employee*
 # items it contains. The last item is our CEO, which gets destroyed as its
@@ -75,8 +75,8 @@ print "----------------------"
 # usual to destroy the object.
 
 del list
-print "----------------------"
+print("----------------------")
 
 # All done.
 
-print "python exit"
+print("python exit")
diff --git a/Examples/python/funcptr/runme.py b/Examples/python/funcptr/runme.py
index bf0c6e1ac..4248f928d 100644
--- a/Examples/python/funcptr/runme.py
+++ b/Examples/python/funcptr/runme.py
@@ -7,14 +7,14 @@ b = 42
 
 # Now call our C function with a bunch of callbacks
 
-print "Trying some C callback functions"
-print "    a        =", a
-print "    b        =", b
-print "    ADD(a,b) =", example.do_op(a, b, example.ADD)
-print "    SUB(a,b) =", example.do_op(a, b, example.SUB)
-print "    MUL(a,b) =", example.do_op(a, b, example.MUL)
+print("Trying some C callback functions")
+print("    a        = %s" % a)
+print("    b        = %s" % b)
+print("    ADD(a,b) = %s" % example.do_op(a, b, example.ADD))
+print("    SUB(a,b) = %s" % example.do_op(a, b, example.SUB))
+print("    MUL(a,b) = %s" % example.do_op(a, b, example.MUL))
 
-print "Here is what the C callback function objects look like in Python"
-print "    ADD      =", example.ADD
-print "    SUB      =", example.SUB
-print "    MUL      =", example.MUL
+print("Here is what the C callback function objects look like in Python")
+print("    ADD      = %s" % example.ADD)
+print("    SUB      = %s" % example.SUB)
+print("    MUL      = %s" % example.MUL)
diff --git a/Examples/python/funcptr2/runme.py b/Examples/python/funcptr2/runme.py
index a4405d9d9..afa2e2db6 100644
--- a/Examples/python/funcptr2/runme.py
+++ b/Examples/python/funcptr2/runme.py
@@ -7,18 +7,18 @@ b = 42
 
 # Now call our C function with a bunch of callbacks
 
-print "Trying some C callback functions"
-print "    a        =", a
-print "    b        =", b
-print "    ADD(a,b) =", example.do_op(a, b, example.ADD)
-print "    SUB(a,b) =", example.do_op(a, b, example.SUB)
-print "    MUL(a,b) =", example.do_op(a, b, example.MUL)
+print("Trying some C callback functions")
+print("    a        = %s" % a)
+print("    b        = %s" % b)
+print("    ADD(a,b) = %s" % example.do_op(a, b, example.ADD))
+print("    SUB(a,b) = %s" % example.do_op(a, b, example.SUB))
+print("    MUL(a,b) = %s" % example.do_op(a, b, example.MUL))
 
-print "Here is what the C callback function objects look like in Python"
-print "    ADD      =", example.ADD
-print "    SUB      =", example.SUB
-print "    MUL      =", example.MUL
+print("Here is what the C callback function objects look like in Python")
+print("    ADD      = %s" % example.ADD)
+print("    SUB      = %s" % example.SUB)
+print("    MUL      = %s" % example.MUL)
 
-print "Call the functions directly..."
-print "    add(a,b) =", example.add(a, b)
-print "    sub(a,b) =", example.sub(a, b)
+print("Call the functions directly...")
+print("    add(a,b) = %s" % example.add(a, b))
+print("    sub(a,b) = %s" % example.sub(a, b))
diff --git a/Examples/python/functor/runme.py b/Examples/python/functor/runme.py
index 7f6f2b649..69289a78b 100644
--- a/Examples/python/functor/runme.py
+++ b/Examples/python/functor/runme.py
@@ -12,5 +12,5 @@ for i in range(0, 100):
     a(i)                # Note: function call
     b(math.sqrt(i))     # Note: function call
 
-print a.result()
-print b.result()
+print(a.result())
+print(b.result())
diff --git a/Examples/python/import/runme.py b/Examples/python/import/runme.py
index 0e83acad0..afa21a2b3 100644
--- a/Examples/python/import/runme.py
+++ b/Examples/python/import/runme.py
@@ -1,15 +1,22 @@
 # file: runme.py
 # Test various properties of classes defined in separate modules
+import sys
+
+print("Testing the %import directive")
 
-print "Testing the %import directive"
 import base
 import foo
 import bar
 import spam
 
+def write_flush(s):
+    # Python 2/3 compatible write and flush
+    sys.stdout.write(s)
+    sys.stdout.flush()
+
 # Create some objects
 
-print "Creating some objects"
+print("Creating some objects")
 
 a = base.Base()
 b = foo.Foo()
@@ -17,91 +24,74 @@ c = bar.Bar()
 d = spam.Spam()
 
 # Try calling some methods
-print "Testing some methods"
-print "",
-print "Should see 'Base::A' ---> ",
+print("Testing some methods")
+
+write_flush("  Should see 'Base::A' ---> ")
 a.A()
-print "Should see 'Base::B' ---> ",
+write_flush("  Should see 'Base::B' ---> ")
 a.B()
 
-print "Should see 'Foo::A' ---> ",
+write_flush("  Should see 'Foo::A' ---> ")
 b.A()
-print "Should see 'Foo::B' ---> ",
+write_flush("  Should see 'Foo::B' ---> ")
 b.B()
 
-print "Should see 'Bar::A' ---> ",
+write_flush("  Should see 'Bar::A' ---> ")
 c.A()
-print "Should see 'Bar::B' ---> ",
+write_flush("  Should see 'Bar::B' ---> ")
 c.B()
 
-print "Should see 'Spam::A' ---> ",
+write_flush("  Should see 'Spam::A' ---> ")
 d.A()
-print "Should see 'Spam::B' ---> ",
+write_flush("  Should see 'Spam::B' ---> ")
 d.B()
 
 # Try some casts
 
-print "\nTesting some casts\n"
-print "",
+print("\nTesting some casts\n")
 
 x = a.toBase()
-print "Should see 'Base::A' ---> ",
+write_flush("  Should see 'Base::A' ---> ")
 x.A()
-print "Should see 'Base::B' ---> ",
+write_flush("  Should see 'Base::B' ---> ")
 x.B()
 
 x = b.toBase()
-print "Should see 'Foo::A' ---> ",
+write_flush("  Should see 'Foo::A' ---> ")
 x.A()
 
-print "Should see 'Base::B' ---> ",
+write_flush("  Should see 'Base::B' ---> ")
 x.B()
 
 x = c.toBase()
-print "Should see 'Bar::A' ---> ",
+write_flush("  Should see 'Bar::A' ---> ")
 x.A()
 
-print "Should see 'Base::B' ---> ",
+write_flush("  Should see 'Base::B' ---> ")
 x.B()
 
 x = d.toBase()
-print "Should see 'Spam::A' ---> ",
+write_flush("  Should see 'Spam::A' ---> ")
 x.A()
 
-print "Should see 'Base::B' ---> ",
+write_flush("  Should see 'Base::B' ---> ")
 x.B()
 
 x = d.toBar()
-print "Should see 'Bar::B' ---> ",
+write_flush("  Should see 'Bar::B' ---> ")
 x.B()
 
-print "\nTesting some dynamic casts\n"
+print("\nTesting some dynamic casts\n")
 x = d.toBase()
 
-print " Spam -> Base -> Foo : ",
 y = foo.Foo_fromBase(x)
-if y:
-    print "bad swig"
-else:
-    print "good swig"
+print("  Spam -> Base -> Foo : {} swig".format("bad" if y else "good"))
 
-print " Spam -> Base -> Bar : ",
 y = bar.Bar_fromBase(x)
-if y:
-    print "good swig"
-else:
-    print "bad swig"
+print("  Spam -> Base -> Bar : {} swig".format("good" if y else "bad"))
 
-print " Spam -> Base -> Spam : ",
 y = spam.Spam_fromBase(x)
-if y:
-    print "good swig"
-else:
-    print "bad swig"
+print("  Spam -> Base -> Spam : {} swig".format("good" if y else "bad"))
 
-print " Foo -> Spam : ",
 y = spam.Spam_fromBase(b)
-if y:
-    print "bad swig"
-else:
-    print "good swig"
+print("  Foo -> Spam : {} swig".format("bad" if y else "good"))
diff --git a/Examples/python/import_packages/from_init1/runme.py b/Examples/python/import_packages/from_init1/runme.py
index a663a136b..c76716f16 100644
--- a/Examples/python/import_packages/from_init1/runme.py
+++ b/Examples/python/import_packages/from_init1/runme.py
@@ -6,26 +6,26 @@ def run_except_on_windows(commandline, env=None):
     if os.name != "nt" and sys.platform != "cygwin":
         # Strange failures on windows/cygin/mingw
         subprocess.check_call(commandline, env=env, shell=True)
-        print("  Finished running: " + commandline)
+        print(("  Finished running: " + commandline))
 
 # Test import of modules content from within __init__.py
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - %module(package=...) + python 'import' in __init__.py"
+print("Testing " + testname + " - %module(package=...) + python 'import' in __init__.py")
 
 if sys.version_info < (2, 5):
-    print "  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'"
+    print("  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'")
     sys.exit(0)
 
 if sys.version_info < (3, 0):
     import py2.pkg2
-    print "  Finished importing py2.pkg2"
+    print("  Finished importing py2.pkg2")
     commandline = sys.executable + " -m py2.pkg2.bar"
     run_except_on_windows(commandline)
     commandline = sys.executable + " -m py2.pkg2.foo"
     run_except_on_windows(commandline)
 else:
     import py3.pkg2
-    print "  Finished importing py3.pkg2"
+    print("  Finished importing py3.pkg2")
     # commandline = sys.executable + " -m py3.pkg2.bar"
     # run_except_on_windows(commandline)
     # commandline = sys.executable + " -m py3.pkg2.foo"
diff --git a/Examples/python/import_packages/from_init2/runme.py b/Examples/python/import_packages/from_init2/runme.py
index 3c7b12693..c9c46a4da 100644
--- a/Examples/python/import_packages/from_init2/runme.py
+++ b/Examples/python/import_packages/from_init2/runme.py
@@ -6,24 +6,24 @@ def run_except_on_windows(commandline, env=None):
     if os.name != "nt" and sys.platform != "cygwin":
         # Strange failures on windows/cygin/mingw
         subprocess.check_call(commandline, env=env, shell=True)
-        print("  Finished running: " + commandline)
+        print(("  Finished running: " + commandline))
 
 # Test import of modules content from within __init__.py
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - %module(package=...) + python 'import' in __init__.py"
+print("Testing " + testname + " - %module(package=...) + python 'import' in __init__.py")
 
 if sys.version_info < (2, 5):
-    print "  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'"
+    print("  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'")
     sys.exit(0)
 
 if sys.version_info < (3, 0):
     import py2.pkg2
-    print "  Finished importing py2.pkg2"
+    print("  Finished importing py2.pkg2")
     commandline = sys.executable + " -m py2.pkg2.bar"
     run_except_on_windows(commandline)
 else:
     import py3.pkg2
-    print "  Finished importing py3.pkg2"
+    print("  Finished importing py3.pkg2")
     # commandline = sys.executable + " -m py3.pkg2.bar"
     # run_except_on_windows(commandline)
 
diff --git a/Examples/python/import_packages/from_init3/runme.py b/Examples/python/import_packages/from_init3/runme.py
index 3c7b12693..c9c46a4da 100644
--- a/Examples/python/import_packages/from_init3/runme.py
+++ b/Examples/python/import_packages/from_init3/runme.py
@@ -6,24 +6,24 @@ def run_except_on_windows(commandline, env=None):
     if os.name != "nt" and sys.platform != "cygwin":
         # Strange failures on windows/cygin/mingw
         subprocess.check_call(commandline, env=env, shell=True)
-        print("  Finished running: " + commandline)
+        print(("  Finished running: " + commandline))
 
 # Test import of modules content from within __init__.py
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - %module(package=...) + python 'import' in __init__.py"
+print("Testing " + testname + " - %module(package=...) + python 'import' in __init__.py")
 
 if sys.version_info < (2, 5):
-    print "  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'"
+    print("  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'")
     sys.exit(0)
 
 if sys.version_info < (3, 0):
     import py2.pkg2
-    print "  Finished importing py2.pkg2"
+    print("  Finished importing py2.pkg2")
     commandline = sys.executable + " -m py2.pkg2.bar"
     run_except_on_windows(commandline)
 else:
     import py3.pkg2
-    print "  Finished importing py3.pkg2"
+    print("  Finished importing py3.pkg2")
     # commandline = sys.executable + " -m py3.pkg2.bar"
     # run_except_on_windows(commandline)
 
diff --git a/Examples/python/import_packages/module_is_init/runme.py b/Examples/python/import_packages/module_is_init/runme.py
index b5e646e85..c4806cdf8 100644
--- a/Examples/python/import_packages/module_is_init/runme.py
+++ b/Examples/python/import_packages/module_is_init/runme.py
@@ -3,10 +3,10 @@ import sys
 
 # Test import of a SWIG generated module renamed as the package's __init__.py
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - module renamed as __init__.py"
+print("Testing " + testname + " - module renamed as __init__.py")
 
 if sys.version_info >= (3, 0, 0) and sys.version_info < (3, 3, 0):
-    print "  Not importing as Python version is >= 3.0 and < 3.3"
+    print("  Not importing as Python version is >= 3.0 and < 3.3")
     # Package detection does not work in these versions.
     # Can be fixed by using this in the interface file:
     #   %module(moduleimport="from . import $module") foo   # without -builtin
@@ -14,7 +14,7 @@ if sys.version_info >= (3, 0, 0) and sys.version_info < (3, 3, 0):
     sys.exit(0)
 
 import pkg1
-print "  Finished importing pkg1"
+print("  Finished importing pkg1")
 
 if pkg1.foofunction(123) != 1230:
     raise RuntimeError("foofunction failed")
@@ -23,4 +23,4 @@ fc = pkg1.FooClass()
 if fc.foomethod(1) != 6:
     raise RuntimeError("foomethod failed")
 
-print "  Finished testing pkg1"
+print("  Finished testing pkg1")
diff --git a/Examples/python/import_packages/namespace_pkg/runme.py b/Examples/python/import_packages/namespace_pkg/runme.py
index d2af05619..54a8e4ee6 100644
--- a/Examples/python/import_packages/namespace_pkg/runme.py
+++ b/Examples/python/import_packages/namespace_pkg/runme.py
@@ -5,14 +5,14 @@ import subprocess
 import sys
 
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - namespace packages"
+print("Testing " + testname + " - namespace packages")
 
 if sys.version_info < (3, 3, 0):
-    print "  Not importing nstest as Python version is < 3.3"
+    print("  Not importing nstest as Python version is < 3.3")
     sys.exit(0)
 
 import nstest
 
-print "  Finished importing nstest"
+print("  Finished importing nstest")
 
 nstest.main()
diff --git a/Examples/python/import_packages/relativeimport1/runme.py b/Examples/python/import_packages/relativeimport1/runme.py
index 87101ea46..3073cb5a7 100644
--- a/Examples/python/import_packages/relativeimport1/runme.py
+++ b/Examples/python/import_packages/relativeimport1/runme.py
@@ -6,26 +6,26 @@ def run_except_on_windows(commandline, env=None):
     if os.name != "nt" and sys.platform != "cygwin":
         # Strange failures on windows/cygin/mingw
         subprocess.check_call(commandline, env=env, shell=True)
-        print("  Finished running: " + commandline)
+        print(("  Finished running: " + commandline))
 
 # Test import of modules content from within __init__.py
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - %module(package=...) with -relativeimport"
+print("Testing " + testname + " - %module(package=...) with -relativeimport")
 
 if sys.version_info < (2, 5):
-    print "  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'"
+    print("  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'")
     sys.exit(0)
 
 if sys.version_info < (3, 0):
     import py2.pkg2.bar
-    print "  Finished importing py2.pkg2.bar"
+    print("  Finished importing py2.pkg2.bar")
     commandline = sys.executable + " -m py2.pkg2.bar"
     run_except_on_windows(commandline)
     commandline = sys.executable + " -m py2.pkg2.pkg3.foo"
     run_except_on_windows(commandline)
 else:
     import py3.pkg2.bar
-    print "  Finished importing py3.pkg2.bar"
+    print("  Finished importing py3.pkg2.bar")
     commandline = sys.executable + " -m py3.pkg2.bar"
     run_except_on_windows(commandline)
     commandline = sys.executable + " -m py3.pkg2.pkg3.foo"
diff --git a/Examples/python/import_packages/relativeimport2/runme.py b/Examples/python/import_packages/relativeimport2/runme.py
index f5b55782f..9ab8d9471 100644
--- a/Examples/python/import_packages/relativeimport2/runme.py
+++ b/Examples/python/import_packages/relativeimport2/runme.py
@@ -6,26 +6,26 @@ def run_except_on_windows(commandline, env=None):
     if os.name != "nt" and sys.platform != "cygwin":
         # Strange failures on windows/cygin/mingw
         subprocess.check_call(commandline, env=env, shell=True)
-        print("  Finished running: " + commandline)
+        print(("  Finished running: " + commandline))
 
 # Test import of modules content from within __init__.py
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - %module(package=...) + python 'import' in __init__.py"
+print("Testing " + testname + " - %module(package=...) + python 'import' in __init__.py")
 
 if sys.version_info < (2, 5):
-    print "  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'"
+    print("  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'")
     sys.exit(0)
 
 if sys.version_info < (3, 0):
     import py2.pkg2.bar
-    print "  Finished importing py2.pkg2.bar"
+    print("  Finished importing py2.pkg2.bar")
     commandline = sys.executable + " -m py2.pkg2.bar"
     run_except_on_windows(commandline)
     commandline = sys.executable + " -m py2.pkg2.pkg3.pkg4.foo"
     run_except_on_windows(commandline)
 else:
     import py3.pkg2.bar
-    print "  Finished importing py3.pkg2.bar"
+    print("  Finished importing py3.pkg2.bar")
     commandline = sys.executable + " -m py3.pkg2.bar"
     run_except_on_windows(commandline)
     commandline = sys.executable + " -m py3.pkg2.pkg3.pkg4.foo"
diff --git a/Examples/python/import_packages/relativeimport3/runme.py b/Examples/python/import_packages/relativeimport3/runme.py
index 87101ea46..3073cb5a7 100644
--- a/Examples/python/import_packages/relativeimport3/runme.py
+++ b/Examples/python/import_packages/relativeimport3/runme.py
@@ -6,26 +6,26 @@ def run_except_on_windows(commandline, env=None):
     if os.name != "nt" and sys.platform != "cygwin":
         # Strange failures on windows/cygin/mingw
         subprocess.check_call(commandline, env=env, shell=True)
-        print("  Finished running: " + commandline)
+        print(("  Finished running: " + commandline))
 
 # Test import of modules content from within __init__.py
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - %module(package=...) with -relativeimport"
+print("Testing " + testname + " - %module(package=...) with -relativeimport")
 
 if sys.version_info < (2, 5):
-    print "  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'"
+    print("  Skipping test as Python version is < 2.5 and does not support relative import syntax: 'from . import x'")
     sys.exit(0)
 
 if sys.version_info < (3, 0):
     import py2.pkg2.bar
-    print "  Finished importing py2.pkg2.bar"
+    print("  Finished importing py2.pkg2.bar")
     commandline = sys.executable + " -m py2.pkg2.bar"
     run_except_on_windows(commandline)
     commandline = sys.executable + " -m py2.pkg2.pkg3.foo"
     run_except_on_windows(commandline)
 else:
     import py3.pkg2.bar
-    print "  Finished importing py3.pkg2.bar"
+    print("  Finished importing py3.pkg2.bar")
     commandline = sys.executable + " -m py3.pkg2.bar"
     run_except_on_windows(commandline)
     commandline = sys.executable + " -m py3.pkg2.pkg3.foo"
diff --git a/Examples/python/import_packages/same_modnames1/runme.py b/Examples/python/import_packages/same_modnames1/runme.py
index a64551bfd..05846ed9d 100644
--- a/Examples/python/import_packages/same_modnames1/runme.py
+++ b/Examples/python/import_packages/same_modnames1/runme.py
@@ -6,21 +6,21 @@ def run_except_on_windows(commandline, env=None):
     if os.name != "nt" and sys.platform != "cygwin":
         # Strange failures on windows/cygin/mingw
         subprocess.check_call(commandline, env=env, shell=True)
-        print("  Finished running: " + commandline)
+        print(("  Finished running: " + commandline))
 
 # Test import of same modules from different packages
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - %module(package=...) + python 'import' in __init__.py"
+print("Testing " + testname + " - %module(package=...) + python 'import' in __init__.py")
 
 import pkg2.foo
-print "  Finished importing pkg2.foo"
+print("  Finished importing pkg2.foo")
 
 var2 = pkg2.foo.Pkg2_Foo()
 
 classname = str(type(var2))
 if classname.find("pkg2.foo.Pkg2_Foo") == -1:
     raise RuntimeError("failed type checking: " + classname)
-print "  Successfully created object pkg2.foo.Pkg2_Foo"
+print("  Successfully created object pkg2.foo.Pkg2_Foo")
 
 commandline = sys.executable + " -m pkg2.foo"
 run_except_on_windows(commandline)
diff --git a/Examples/python/import_packages/same_modnames2/runme.py b/Examples/python/import_packages/same_modnames2/runme.py
index c2cf2744c..190dadc77 100644
--- a/Examples/python/import_packages/same_modnames2/runme.py
+++ b/Examples/python/import_packages/same_modnames2/runme.py
@@ -6,20 +6,20 @@ def run_except_on_windows(commandline, env=None):
     if os.name != "nt" and sys.platform != "cygwin":
         # Strange failures on windows/cygin/mingw
         subprocess.check_call(commandline, env=env, shell=True)
-        print("  Finished running: " + commandline)
+        print(("  Finished running: " + commandline))
 
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - %module(package=...) + python 'import' in __init__.py"
+print("Testing " + testname + " - %module(package=...) + python 'import' in __init__.py")
 
 import pkg1.pkg2.foo
-print "  Finished importing pkg1.pkg2.foo"
+print("  Finished importing pkg1.pkg2.foo")
 
 var2 = pkg1.pkg2.foo.Pkg2_Foo()
 
 classname = str(type(var2))
 if classname.find("pkg1.pkg2.foo.Pkg2_Foo") == -1:
     raise RuntimeError("failed type checking: " + classname)
-print "  Successfully created object pkg1.pkg2.foo.Pkg2_Foo"
+print("  Successfully created object pkg1.pkg2.foo.Pkg2_Foo")
 
 commandline = sys.executable + " -m pkg1.pkg2.foo"
 run_except_on_windows(commandline)
diff --git a/Examples/python/import_packages/split_modules/vanilla/runme.py b/Examples/python/import_packages/split_modules/vanilla/runme.py
index 79d79b4c3..0f7b8806b 100644
--- a/Examples/python/import_packages/split_modules/vanilla/runme.py
+++ b/Examples/python/import_packages/split_modules/vanilla/runme.py
@@ -6,14 +6,14 @@ def run_except_on_windows(commandline, env=None):
     if os.name != "nt" and sys.platform != "cygwin":
         # Strange failures on windows/cygin/mingw
         subprocess.check_call(commandline, env=env, shell=True)
-        print("  Finished running: " + commandline)
+        print(("  Finished running: " + commandline))
 
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - split modules"
+print("Testing " + testname + " - split modules")
 
 import pkg1.foo
 
-print "  Finished importing pkg1.foo"
+print("  Finished importing pkg1.foo")
 
 if not(pkg1.foo.count() == 3):
     raise RuntimeError("test failed")
diff --git a/Examples/python/import_packages/split_modules/vanilla_split/runme.py b/Examples/python/import_packages/split_modules/vanilla_split/runme.py
index 79d79b4c3..0f7b8806b 100644
--- a/Examples/python/import_packages/split_modules/vanilla_split/runme.py
+++ b/Examples/python/import_packages/split_modules/vanilla_split/runme.py
@@ -6,14 +6,14 @@ def run_except_on_windows(commandline, env=None):
     if os.name != "nt" and sys.platform != "cygwin":
         # Strange failures on windows/cygin/mingw
         subprocess.check_call(commandline, env=env, shell=True)
-        print("  Finished running: " + commandline)
+        print(("  Finished running: " + commandline))
 
 testname = os.path.basename(os.path.dirname(os.path.abspath(__file__)))
-print "Testing " + testname + " - split modules"
+print("Testing " + testname + " - split modules")
 
 import pkg1.foo
 
-print "  Finished importing pkg1.foo"
+print("  Finished importing pkg1.foo")
 
 if not(pkg1.foo.count() == 3):
     raise RuntimeError("test failed")
diff --git a/Examples/python/import_template/runme.py b/Examples/python/import_template/runme.py
index 35f8924c1..b14f8d35e 100644
--- a/Examples/python/import_template/runme.py
+++ b/Examples/python/import_template/runme.py
@@ -1,15 +1,22 @@
 # file: runme.py
 # Test various properties of classes defined in separate modules
+import sys
+
+print("Testing the %import directive with templates")
 
-print "Testing the %import directive with templates"
 import base
 import foo
 import bar
 import spam
 
+def write_flush(s):
+    # Python 2/3 compatible write and flush
+    sys.stdout.write(s)
+    sys.stdout.flush()
+
 # Create some objects
 
-print "Creating some objects"
+print("Creating some objects")
 
 a = base.intBase()
 b = foo.intFoo()
@@ -17,91 +24,74 @@ c = bar.intBar()
 d = spam.intSpam()
 
 # Try calling some methods
-print "Testing some methods"
-print "",
-print "Should see 'Base::A' ---> ",
+print("Testing some methods")
+
+write_flush("  Should see 'Base::A' ---> ")
 a.A()
-print "Should see 'Base::B' ---> ",
+write_flush("  Should see 'Base::B' ---> ")
 a.B()
 
-print "Should see 'Foo::A' ---> ",
+write_flush("  Should see 'Foo::A' ---> ")
 b.A()
-print "Should see 'Foo::B' ---> ",
+write_flush("  Should see 'Foo::B' ---> ")
 b.B()
 
-print "Should see 'Bar::A' ---> ",
+write_flush("  Should see 'Bar::A' ---> ")
 c.A()
-print "Should see 'Bar::B' ---> ",
+write_flush("  Should see 'Bar::B' ---> ")
 c.B()
 
-print "Should see 'Spam::A' ---> ",
+write_flush("  Should see 'Spam::A' ---> ")
 d.A()
-print "Should see 'Spam::B' ---> ",
+write_flush("  Should see 'Spam::B' ---> ")
 d.B()
 
 # Try some casts
 
-print "\nTesting some casts\n"
-print "",
+print("\nTesting some casts\n")
 
 x = a.toBase()
-print "Should see 'Base::A' ---> ",
+write_flush("  Should see 'Base::A' ---> ")
 x.A()
-print "Should see 'Base::B' ---> ",
+write_flush("  Should see 'Base::B' ---> ")
 x.B()
 
 x = b.toBase()
-print "Should see 'Foo::A' ---> ",
+write_flush("  Should see 'Foo::A' ---> ")
 x.A()
 
-print "Should see 'Base::B' ---> ",
+write_flush("  Should see 'Base::B' ---> ")
 x.B()
 
 x = c.toBase()
-print "Should see 'Bar::A' ---> ",
+write_flush("  Should see 'Bar::A' ---> ")
 x.A()
 
-print "Should see 'Base::B' ---> ",
+write_flush("  Should see 'Base::B' ---> ")
 x.B()
 
 x = d.toBase()
-print "Should see 'Spam::A' ---> ",
+write_flush("  Should see 'Spam::A' ---> ")
 x.A()
 
-print "Should see 'Base::B' ---> ",
+write_flush("  Should see 'Base::B' ---> ")
 x.B()
 
 x = d.toBar()
-print "Should see 'Bar::B' ---> ",
+write_flush("  Should see 'Bar::B' ---> ")
 x.B()
 
-print "\nTesting some dynamic casts\n"
+print("\nTesting some dynamic casts\n")
 x = d.toBase()
 
-print " Spam -> Base -> Foo : ",
 y = foo.intFoo_fromBase(x)
-if y:
-    print "bad swig"
-else:
-    print "good swig"
+print("  Spam -> Base -> Foo : {} swig".format("bad" if y else "good"))
 
-print " Spam -> Base -> Bar : ",
 y = bar.intBar_fromBase(x)
-if y:
-    print "good swig"
-else:
-    print "bad swig"
+print("  Spam -> Base -> Bar : {} swig".format("good" if y else "bad"))
 
-print " Spam -> Base -> Spam : ",
 y = spam.intSpam_fromBase(x)
-if y:
-    print "good swig"
-else:
-    print "bad swig"
+print("  Spam -> Base -> Spam : {} swig".format("good" if y else "bad"))
 
-print " Foo -> Spam : ",
 y = spam.intSpam_fromBase(b)
-if y:
-    print "bad swig"
-else:
-    print "good swig"
+print("  Foo -> Spam : {} swig".format("bad" if y else "good"))
diff --git a/Examples/python/multimap/runme.py b/Examples/python/multimap/runme.py
index ad693b73a..e24f54ee1 100644
--- a/Examples/python/multimap/runme.py
+++ b/Examples/python/multimap/runme.py
@@ -7,14 +7,14 @@ import example
 x = 42
 y = 105
 g = example.gcd(x, y)
-print "The gcd of %d and %d is %d" % (x, y, g)
+print("The gcd of %d and %d is %d" % (x, y, g))
 
 # Call the gcdmain() function
 example.gcdmain(["gcdmain", "42", "105"])
 
 # Call the count function
-print example.count("Hello World", "l")
+print(example.count("Hello World", "l"))
 
 # Call the capitalize function
 
-print example.capitalize("hello world")
+print(example.capitalize("hello world"))
diff --git a/Examples/python/operator/runme.py b/Examples/python/operator/runme.py
index ac48f2676..ee479f0b5 100644
--- a/Examples/python/operator/runme.py
+++ b/Examples/python/operator/runme.py
@@ -4,17 +4,17 @@ import example
 a = example.Complex(2, 3)
 b = example.Complex(-5, 10)
 
-print "a   =", a
-print "b   =", b
+print("a   = %s" % a)
+print("b   = %s" % b)
 
 c = a + b
-print "c   =", c
-print "a*b =", a * b
-print "a-c =", a - c
+print("c   = %s" % c)
+print("a*b = %s" % (a * b))
+print("a-c = %s" % (a - c))
 
 e = example.ComplexCopy(a - c)
-print "e   =", e
+print("e   = %s" % e)
 
 # Big expression
 f = ((a + b) * (c + b * e)) + (-a)
-print "f   =", f
+print("f   = %s" % f)
diff --git a/Examples/python/pointer/runme.py b/Examples/python/pointer/runme.py
index 5b5f16bc2..46371b89a 100644
--- a/Examples/python/pointer/runme.py
+++ b/Examples/python/pointer/runme.py
@@ -3,23 +3,23 @@
 import example
 
 # First create some objects using the pointer library.
-print "Testing the pointer library"
+print("Testing the pointer library")
 a = example.new_intp()
 b = example.new_intp()
 c = example.new_intp()
 example.intp_assign(a, 37)
 example.intp_assign(b, 42)
 
-print "     a =", a
-print "     b =", b
-print "     c =", c
+print("     a = %s" % a)
+print("     b = %s" % b)
+print("     c = %s" % c)
 
 # Call the add() function with some pointers
 example.add(a, b, c)
 
 # Now get the result
 r = example.intp_value(c)
-print "     37 + 42 =", r
+print("     37 + 42 = %s" % r)
 
 # Clean up the pointers
 example.delete_intp(a)
@@ -30,12 +30,12 @@ example.delete_intp(c)
 # This should be much easier. Now how it is no longer
 # necessary to manufacture pointers.
 
-print "Trying the typemap library"
+print("Trying the typemap library")
 r = example.sub(37, 42)
-print "     37 - 42 =", r
+print("     37 - 42 = %s" % r)
 
 # Now try the version with multiple return values
 
-print "Testing multiple return values"
+print("Testing multiple return values")
 q, r = example.divide(42, 37)
-print "     42/37 = %d remainder %d" % (q, r)
+print("     42/37 = %d remainder %d" % (q, r))
diff --git a/Examples/python/reference/runme.py b/Examples/python/reference/runme.py
index 0ff217b02..8a96e03a7 100644
--- a/Examples/python/reference/runme.py
+++ b/Examples/python/reference/runme.py
@@ -6,12 +6,12 @@ import example
 
 # ----- Object creation -----
 
-print "Creating some objects:"
+print("Creating some objects:")
 a = example.Vector(3, 4, 5)
 b = example.Vector(10, 11, 12)
 
-print "    Created", a.cprint()
-print "    Created", b.cprint()
+print("    Created %s" % a.cprint())
+print("    Created %s" % b.cprint())
 
 # ----- Call an overloaded operator -----
 
@@ -21,9 +21,9 @@ print "    Created", b.cprint()
 #
 # It returns a new allocated object.
 
-print "Adding a+b"
+print("Adding a+b")
 c = example.addv(a, b)
-print "    a+b =", c.cprint()
+print("    a+b = %s" % c.cprint())
 
 # Note: Unless we free the result, a memory leak will occur
 del c
@@ -31,9 +31,9 @@ del c
 # ----- Create a vector array -----
 
 # Note: Using the high-level interface here
-print "Creating an array of vectors"
+print("Creating an array of vectors")
 va = example.VectorArray(10)
-print "    va = ", va
+print("    va = %s" % va)
 
 # ----- Set some values in the array -----
 
@@ -45,17 +45,17 @@ va.set(2, example.addv(a, b))
 
 # Get some values from the array
 
-print "Getting some array values"
+print("Getting some array values")
 for i in range(0, 5):
-    print "    va(%d) = %s" % (i, va.get(i).cprint())
+    print("    va(%d) = %s" % (i, va.get(i).cprint()))
 
 # Watch under resource meter to check on this
-print "Making sure we don't leak memory."
-for i in xrange(0, 1000000):
+print("Making sure we don't leak memory.")
+for i in range(0, 1000000):
     c = va.get(i % 10)
 
 # ----- Clean up -----
-print "Cleaning up"
+print("Cleaning up")
 
 del va
 del a
diff --git a/Examples/python/simple/runme.py b/Examples/python/simple/runme.py
index ce01e5a1d..ec0aceb45 100644
--- a/Examples/python/simple/runme.py
+++ b/Examples/python/simple/runme.py
@@ -7,15 +7,15 @@ import example
 x = 42
 y = 105
 g = example.gcd(x, y)
-print "The gcd of %d and %d is %d" % (x, y, g)
+print("The gcd of %d and %d is %d" % (x, y, g))
 
 # Manipulate the Foo global variable
 
 # Output its current value
-print "Foo = ", example.cvar.Foo
+print("Foo = %s" % example.cvar.Foo)
 
 # Change its value
 example.cvar.Foo = 3.1415926
 
 # See if the change took effect
-print "Foo = ", example.cvar.Foo
+print("Foo = %s" % example.cvar.Foo)
diff --git a/Examples/python/smartptr/runme.py b/Examples/python/smartptr/runme.py
index 5f8b73476..f01636ad6 100644
--- a/Examples/python/smartptr/runme.py
+++ b/Examples/python/smartptr/runme.py
@@ -7,17 +7,17 @@ import example
 
 # ----- Object creation -----
 
-print "Creating some objects:"
+print("Creating some objects:")
 cc = example.Circle(10)
 c = example.ShapePtr(cc)
-print "    Created circle", c
+print("    Created circle %s" % c)
 ss = example.Square(10)
 s = example.ShapePtr(ss)
-print "    Created square", s
+print("    Created square %s" % s)
 
 # ----- Access a static member -----
 
-print "\nA total of", example.cvar.Shape_nshapes, "shapes were created"
+print("\nA total of %s shapes were created" % example.cvar.Shape_nshapes)
 
 # ----- Member data access -----
 
@@ -29,19 +29,19 @@ c.y = 30
 s.x = -10
 s.y = 5
 
-print "\nHere is their current position:"
-print "    Circle = (%f, %f)" % (c.x, c.y)
-print "    Square = (%f, %f)" % (s.x, s.y)
+print("\nHere is their current position:")
+print("    Circle = (%f, %f)" % (c.x, c.y))
+print("    Square = (%f, %f)" % (s.x, s.y))
 
 # ----- Call some methods -----
 
-print "\nHere are some properties of the shapes:"
+print("\nHere are some properties of the shapes:")
 for o in [c, s]:
-    print "   ", o
-    print "        area      = ", o.area()
-    print "        perimeter = ", o.perimeter()
+    print("    %s" % o)
+    print("        area      = %s" % o.area())
+    print("        perimeter = %s" % o.perimeter())
 
-print "\nGuess I'll clean up now"
+print("\nGuess I'll clean up now")
 
 # Note: this invokes the virtual destructor
 del c
@@ -50,5 +50,5 @@ del cc
 del ss
 
 s = 3
-print example.cvar.Shape_nshapes, "shapes remain"
-print "Goodbye"
+print("%d shapes remain" % example.cvar.Shape_nshapes)
+print("Goodbye")
diff --git a/Examples/python/std_map/runme.py b/Examples/python/std_map/runme.py
index 26031f3f4..e86f613fa 100644
--- a/Examples/python/std_map/runme.py
+++ b/Examples/python/std_map/runme.py
@@ -11,45 +11,45 @@ dmap = {}
 dmap["hello"] = 1.0
 dmap["hi"] = 2.0
 
-print dmap.items()
-print dmap.keys()
-print dmap.values()
+print(list(dmap.items()))
+print(list(dmap.keys()))
+print(list(dmap.values()))
 
-print dmap
+print(dmap)
 hmap = example.halfd(dmap)
 dmap = hmap
 
-print dmap
-for i in dmap.iterkeys():
-    print "key", i
+print(dmap)
+for i in dmap.keys():
+    print("key %s" % i)
 
-for i in dmap.itervalues():
-    print "val", i
+for i in dmap.values():
+    print("val %s" % i)
 
-for k, v in dmap.iteritems():
-    print "item", k, v
+for k, v in dmap.items():
+    print("item %s %s" % (k, v))
 
 dmap = example.DoubleMap()
 dmap["hello"] = 1.0
 dmap["hi"] = 2.0
 
-for i in dmap.iterkeys():
-    print "key", i
+for i in dmap.keys():
+    print("key %s" % i)
 
-for i in dmap.itervalues():
-    print "val", i
+for i in dmap.values():
+    print("val %s" % i)
 
-for k, v in dmap.iteritems():
-    print "item", k, v
+for k, v in dmap.items():
+    print("item %s %s" % (k, v))
 
 
-print dmap.items()
-print dmap.keys()
-print dmap.values()
+print(list(dmap.items()))
+print(list(dmap.keys()))
+print(list(dmap.values()))
 
 hmap = example.halfd(dmap)
-print hmap.keys()
-print hmap.values()
+print(list(hmap.keys()))
+print(list(hmap.values()))
 
 
 dmap = {}
@@ -57,23 +57,23 @@ dmap["hello"] = 2
 dmap["hi"] = 4
 
 hmap = example.halfi(dmap)
-print hmap
-print hmap.keys()
-print hmap.values()
+print(hmap)
+print(list(hmap.keys()))
+print(list(hmap.values()))
 
 
 dmap = hmap
 
-for i in dmap.iterkeys():
-    print "key", i
+for i in dmap.keys():
+    print("key %s" % i)
 
-for i in dmap.itervalues():
-    print "val", i
+for i in dmap.values():
+    print("val %s" % i)
 
-for i in dmap.iteritems():
-    print "item", i
+for i in dmap.items():
+    print("item %s" % str(i))
 
-for k, v in dmap.iteritems():
-    print "item", k, v
+for k, v in dmap.items():
+    print("item %s %s" % (k, v))
 
-print dmap
+print(dmap)
diff --git a/Examples/python/std_vector/runme.py b/Examples/python/std_vector/runme.py
index d7d3c2ea4..3f1106d59 100644
--- a/Examples/python/std_vector/runme.py
+++ b/Examples/python/std_vector/runme.py
@@ -4,32 +4,30 @@ import example
 
 # Call average with a Python list...
 
-print example.average([1, 2, 3, 4])
+print(example.average([1, 2, 3, 4]))
 
 # ... or a wrapped std::vector<int>
 
 v = example.IntVector(4)
 for i in range(len(v)):
     v[i] = i + 1
-print example.average(v)
+print(example.average(v))
 
 
 # half will return a Python list.
 # Call it with a Python tuple...
 
-print example.half((1.0, 1.5, 2.0, 2.5, 3.0))
+print(example.half((1.0, 1.5, 2.0, 2.5, 3.0)))
 
 # ... or a wrapped std::vector<double>
 
 v = example.DoubleVector()
 for i in [1, 2, 3, 4]:
     v.append(i)
-print example.half(v)
+print(example.half(v))
 
 
 # now halve a wrapped std::vector<double> in place
 
 example.halve_in_place(v)
-for i in range(len(v)):
-    print v[i], "; ",
-print
+print([i for i in v])
diff --git a/Examples/python/template/runme.py b/Examples/python/template/runme.py
index e408e15f9..85b1ba937 100644
--- a/Examples/python/template/runme.py
+++ b/Examples/python/template/runme.py
@@ -3,8 +3,8 @@
 import example
 
 # Call some templated functions
-print example.maxint(3, 7)
-print example.maxdouble(3.14, 2.18)
+print(example.maxint(3, 7))
+print(example.maxdouble(3.14, 2.18))
 
 # Create some class
 
@@ -21,12 +21,12 @@ sum = 0
 for i in range(0, 100):
     sum = sum + iv.getitem(i)
 
-print sum
+print(sum)
 
 sum = 0.0
 for i in range(0, 1000):
     sum = sum + dv.getitem(i)
-print sum
+print(sum)
 
 del iv
 del dv
diff --git a/Examples/python/variables/runme.py b/Examples/python/variables/runme.py
index 4d34e92dd..d59e0aa3e 100644
--- a/Examples/python/variables/runme.py
+++ b/Examples/python/variables/runme.py
@@ -22,51 +22,51 @@ example.cvar.name = "Bill"
 
 # Now print out the values of the variables
 
-print "Variables (values printed from Python)"
+print("Variables (values printed from Python)")
 
-print "ivar      =", example.cvar.ivar
-print "svar      =", example.cvar.svar
-print "lvar      =", example.cvar.lvar
-print "uivar     =", example.cvar.uivar
-print "usvar     =", example.cvar.usvar
-print "ulvar     =", example.cvar.ulvar
-print "scvar     =", example.cvar.scvar
-print "ucvar     =", example.cvar.ucvar
-print "fvar      =", example.cvar.fvar
-print "dvar      =", example.cvar.dvar
-print "cvar      =", example.cvar.cvar
-print "strvar    =", example.cvar.strvar
-print "cstrvar   =", example.cvar.cstrvar
-print "iptrvar   =", example.cvar.iptrvar
-print "name      =", example.cvar.name
-print "ptptr     =", example.cvar.ptptr, example.Point_print(example.cvar.ptptr)
-print "pt        =", example.cvar.pt, example.Point_print(example.cvar.pt)
+print("ivar      = %s" % example.cvar.ivar)
+print("svar      = %s" % example.cvar.svar)
+print("lvar      = %s" % example.cvar.lvar)
+print("uivar     = %s" % example.cvar.uivar)
+print("usvar     = %s" % example.cvar.usvar)
+print("ulvar     = %s" % example.cvar.ulvar)
+print("scvar     = %s" % example.cvar.scvar)
+print("ucvar     = %s" % example.cvar.ucvar)
+print("fvar      = %s" % example.cvar.fvar)
+print("dvar      = %s" % example.cvar.dvar)
+print("cvar      = %s" % example.cvar.cvar)
+print("strvar    = %s" % example.cvar.strvar)
+print("cstrvar   = %s" % example.cvar.cstrvar)
+print("iptrvar   = %s" % example.cvar.iptrvar)
+print("name      = %s" % example.cvar.name)
+print("ptptr     = %s %s" % (example.cvar.ptptr, example.Point_print(example.cvar.ptptr)))
+print("pt        = %s %s" % (example.cvar.pt, example.Point_print(example.cvar.pt)))
 
-print "\nVariables (values printed from C)"
+print("\nVariables (values printed from C)")
 
 example.print_vars()
 
-print "\nNow I'm going to try and modify some read only variables"
+print("\nNow I'm going to try and modify some read only variables")
 
-print "     Trying to set 'path'"
+print("     Trying to set 'path'")
 try:
     example.cvar.path = "Whoa!"
-    print "Hey, what's going on?!?! This shouldn't work"
+    print("Hey, what's going on?!?! This shouldn't work")
 except Exception:
-    print "Good."
+    print("Good.")
 
-print "     Trying to set 'status'"
+print("     Trying to set 'status'")
 try:
     example.cvar.status = 0
-    print "Hey, what's going on?!?! This shouldn't work"
+    print("Hey, what's going on?!?! This shouldn't work")
 except Exception:
-    print "Good."
+    print("Good.")
 
 
-print "\nI'm going to try and update a structure variable.\n"
+print("\nI'm going to try and update a structure variable.\n")
 
 example.cvar.pt = example.cvar.ptptr
 
-print "The new value is"
+print("The new value is")
 example.pt_print()
-print "You should see the value", example.Point_print(example.cvar.ptptr)
+print("You should see the value %s" % example.Point_print(example.cvar.ptptr))