updated contents from Atlas repo

decorators/clockdeco2_demo.py

@@ -0,0 +1,31 @@
+# clockdec2o_demo.py
+
+"""
+>>> pythagoras(3, 4)        # doctest: +ELLIPSIS
+[0.0...s] pythagoras(3, 4) -> 5.0
+5.0
+>>> pythagoras(9, h=15)     # doctest: +ELLIPSIS
+[0.0...s] pythagoras(9, h=15) -> 12.0
+12.0
+
+"""
+import time
+import math
+from clockdeco2 import clock
+
+
+@clock
+def pythagoras(a, b=None, h=None):
+    if b is None and h is None:
+        raise TypeError('must provide second leg (b) or hypotenuse (h)')
+    if h is None:
+        return math.sqrt(a*a + b*b)
+    else:
+        return math.sqrt(h*h - a*a)
+
+
+if __name__=='__main__':
+    print('*' * 40, 'Calling pythagoras(3, 4)')
+    pythagoras(3, 4)
+    print('*' * 40, 'Calling pythagoras(9, h=15)')
+    pythagoras(9, h=15)