Learning Circle : python #12 - ex44.py

youngjin.han/learning-node02-2020.org

@@ -1,3 +1,11 @@
+* 2020-06-17
+*** Python #11:
+**** DONE Lecture content
+     CLOSED: [2020-06-17 수 22:24]
+     - Same structure as "Python #2"
+     - Exercise 44
+**** Lecture material
+     - Available on https://cloud.ungleich.ch/s/435FyfrQyEq6oF3
 * 2020-06-15
 *** DONE Python #10:
     CLOSED: [2020-06-15 월 23:55]

youngjin.han/python-the-hard-way/ex44a.py

@@ -0,0 +1,13 @@
+class Parent(object):
+
+    def implicit(self):
+        print("PARENT implicit()")
+
+class Child(Parent):
+    pass
+
+dad = Parent()
+son = Child()
+
+dad.implicit()
+son.implicit()

youngjin.han/python-the-hard-way/ex44b.py

@@ -0,0 +1,15 @@
+class Parent(object):
+
+    def override(self):
+        print("PARENT override()")
+
+class Child(Parent):
+
+    def override(self):
+        print("CHILD override()")
+
+dad = Parent()
+son = Child()
+
+dad.override()
+son.override()

youngjin.han/python-the-hard-way/ex44c.py

@@ -0,0 +1,17 @@
+class Parent(object):
+
+    def altered(self):
+        print("PARENT altered()")
+
+class Child(Parent):
+
+    def altered(self):
+        print("CHILD, BEFORE PARENT altered()")
+        super(Child, self).altered()
+        print("CHILD, AFTER PARENT altered()")
+
+dad = Parent()
+son = Child()
+
+dad.altered()
+son.altered()

youngjin.han/python-the-hard-way/ex44d.py

@@ -0,0 +1,32 @@
+class Parent(object):
+
+    def override(self):
+        print("PARENT override()")
+
+    def implicit(self):
+        print("PARENT implicit()")
+
+    def altered(self):
+        print("PARENT altered()")
+
+class Child(Parent):
+
+    def override(self):
+        print("CHILD override()")
+
+    def altered(self):
+        print("CHILD, BEFORE PARENT altered()")
+        super(Child, self).altered()
+        print("CHILD, AFTER PARENT altered()")
+
+dad = Parent()
+son = Child()
+
+dad.implicit()
+son.implicit()
+
+dad.override()
+son.override()
+
+dad.altered()
+son.altered()

youngjin.han/python-the-hard-way/ex44e.py

@@ -0,0 +1,32 @@
+class Other(object):
+
+    def override(self):
+        print("OTHER override()")
+
+    def implicit(self):
+        print("OTHER implicit()")
+
+    def altered(self):
+        print("OTHER altered()")
+
+class Child(object):
+
+    def __init__(self):
+        self.other = Other()
+
+    def implicit(self):
+        self.other.implicit()
+
+    def override(self):
+        print("CHILD override()")
+
+    def altered(self):
+        print("CHILD, BEFORE OTHER altered()")
+        self.other.altered()
+        print("CHILD, AFTER OTHER altered()")
+
+son = Child()
+
+son.implicit()
+son.override()
+son.altered()

youngjin.han/python.org

@@ -1,3 +1,7 @@
+* 2020-06-17
+** note
+  - ex44.py
+    - none
 * 2020-06-15
 ** note
   - ex43.py