diff --git a/kjg/python-the-hard-way/e40.py b/kjg/python-the-hard-way/e40.py
new file mode 100644
index 0000000..31f5dbe
--- /dev/null
+++ b/kjg/python-the-hard-way/e40.py
@@ -0,0 +1,20 @@
+class Song(object):
+    def __init__(self, lyrics):
+        self.lyrics = lyrics
+        
+    def sing_me_a_song(self):
+        for line in self.lyrics:
+            print(line)
+
+            
+ly1 = ["Happy birthday to you", "I don't want to get sued", "So I'll stop right there"]
+ly2 = ["They rally around tha family","With pockets full of shells"]
+
+happy_bday = Song(ly1)
+
+bulls_on_parade = Song(ly2)
+
+
+happy_bday.sing_me_a_song()
+
+bulls_on_parade.sing_me_a_song()
diff --git a/kjg/python.org b/kjg/python.org
index 66ab96d..e8ae276 100644
--- a/kjg/python.org
+++ b/kjg/python.org
@@ -142,3 +142,6 @@ analysis sample codes
 append list
 **** ex39
 How to use dictionary
+*** Python #8
+**** ex40
+How to use class