* Added 38-method-overloading-2.py

Vimal · Vimal · commit 27bfdbe72bee · 2016-06-15T00:13:03.000+05:30
diff --git a/38-method-overloading-2.py b/38-method-overloading-2.py
@@ -0,0 +1,45 @@
+#!/usr/bin/env python
+
+# 37-method-overloading-1.py
+
+# Reference: O'Reilly Learning Path:
+# http://shop.oreilly.com/product/0636920040057.do
+# Chapter 24 : Method Overloading - Extending and Providing
+
+import abc
+
+
+class GetSetParent(object):
+
+    __metaclass__ = abc.ABCMeta
+
+    def __init__(self, value):
+        self.val = 0
+
+    def set_val(self, value):
+        self.val = value
+
+    def get_val(self):
+        return self.val
+
+    @abc.abstractmethod
+    def showdoc(self):
+        return
+
+
+class GetSetList(GetSetParent):
+    def __init__(self, value=0):
+        self.vallist = [value]
+
+    def get_val(self):
+        return self.vallist[-1]
+
+    def get_vals(self):
+        return self.vallist
+
+    def set_val(self, value):
+        self.vallist.append(value)
+
+    def showdoc(self):
+        print("GetSetList object, len {0}, store history of values set".format(
+            len(self.vallist)))
