Added files for Ecoanova's Python 3 course.

Ecoanova/Introduccion a Python 3/Ejemplos/classes.py

@@ -0,0 +1,33 @@
+################
+# Simple class #
+################
+
+class Class(object):
+    def __init__(self, a):
+        self.a = a
+
+    def method(self):
+        return self.a
+
+o = Class(1)
+print(o.method())
+print(o.a) # !
+
+####################
+# With inheritance #
+####################
+
+class Subclass(Class):
+    def __init__(self, a, b):
+        super(Subclass, self).__init__(a)
+        self.b = b
+
+    def method(self):
+        return self.b
+        
+    def sub_method(self):
+        return self.a
+
+s = Subclass(1, 2)
+print(s.method())
+print(s.sub_method())