Adding pybench 1.3 to the Tools/ directory.
diff --git a/Tools/pybench/Arithmetic.py b/Tools/pybench/Arithmetic.py
new file mode 100644
index 0000000..e95c30a
--- /dev/null
+++ b/Tools/pybench/Arithmetic.py
@@ -0,0 +1,778 @@
+from pybench import Test
+
+class SimpleIntegerArithmetic(Test):
+
+    version = 0.3
+    operations = 5 * (3 + 5 + 5 + 3 + 3 + 3)
+    rounds = 120000
+
+    def test(self):
+
+        for i in xrange(self.rounds):
+
+            a = 2
+            b = 3
+            c = 3
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2
+            b = 3
+            c = 3
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2
+            b = 3
+            c = 3
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2
+            b = 3
+            c = 3
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2
+            b = 3
+            c = 3
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+    def calibrate(self):
+
+        for i in xrange(self.rounds):
+            pass
+
+class SimpleFloatArithmetic(Test):
+
+    version = 0.3
+    operations = 5 * (3 + 5 + 5 + 3 + 3 + 3)
+    rounds = 100000
+
+    def test(self):
+
+        for i in xrange(self.rounds):
+
+            a = 2.1
+            b = 3.3332
+            c = 3.14159
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2.1
+            b = 3.3332
+            c = 3.14159
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2.1
+            b = 3.3332
+            c = 3.14159
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2.1
+            b = 3.3332
+            c = 3.14159
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2.1
+            b = 3.3332
+            c = 3.14159
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+    def calibrate(self):
+
+        for i in xrange(self.rounds):
+            pass
+
+class SimpleIntFloatArithmetic(Test):
+
+    version = 0.3
+    operations = 5 * (3 + 5 + 5 + 3 + 3 + 3)
+    rounds = 120000
+
+    def test(self):
+
+        for i in xrange(self.rounds):
+
+            a = 2
+            b = 3
+            c = 3.14159
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2
+            b = 3
+            c = 3.14159
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2
+            b = 3
+            c = 3.14159
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2
+            b = 3
+            c = 3.14159
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2
+            b = 3
+            c = 3.14159
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+    def calibrate(self):
+
+        for i in xrange(self.rounds):
+            pass
+
+
+class SimpleLongArithmetic(Test):
+
+    version = 0.3
+    operations = 5 * (3 + 5 + 5 + 3 + 3 + 3)
+    rounds = 30000
+
+    def test(self):
+
+        for i in xrange(self.rounds):
+
+            a = 2220001L
+            b = 100001L
+            c = 30005L
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2220001L
+            b = 100001L
+            c = 30005L
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2220001L
+            b = 100001L
+            c = 30005L
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2220001L
+            b = 100001L
+            c = 30005L
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2220001L
+            b = 100001L
+            c = 30005L
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+    def calibrate(self):
+
+        for i in xrange(self.rounds):
+            pass
+
+class SimpleComplexArithmetic(Test):
+
+    version = 0.3
+    operations = 5 * (3 + 5 + 5 + 3 + 3 + 3)
+    rounds = 40000
+
+    def test(self):
+
+        for i in xrange(self.rounds):
+
+            a = 2 + 3j
+            b = 2.5 + 4.5j
+            c = 1.2 + 6.2j
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2 + 3j
+            b = 2.5 + 4.5j
+            c = 1.2 + 6.2j
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2 + 3j
+            b = 2.5 + 4.5j
+            c = 1.2 + 6.2j
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2 + 3j
+            b = 2.5 + 4.5j
+            c = 1.2 + 6.2j
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            a = 2 + 3j
+            b = 2.5 + 4.5j
+            c = 1.2 + 6.2j
+
+            c = a + b
+            c = b + c
+            c = c + a
+            c = a + b
+            c = b + c
+
+            c = c - a
+            c = a - b
+            c = b - c
+            c = c - a
+            c = b - c
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+            c = a * b
+            c = b * a
+            c = c * b
+
+            c = a / b
+            c = b / a
+            c = c / b
+
+    def calibrate(self):
+
+        for i in xrange(self.rounds):
+            pass
+