diff --git a/python-temel/polymorphism.py b/python-temel/polymorphism.py
new file mode 100644
index 0000000..15af277
--- /dev/null
+++ b/python-temel/polymorphism.py
@@ -0,0 +1,46 @@
+class MP3:
+    def __init__(self, path):
+        self.path = path
+
+    def play(self):
+        print("MP3 çalıyor")
+
+class WAV:
+    def __init__(self, path):
+        self.path = path
+
+    def play(self):
+        print("WAV çalıyor")
+
+class WMA:
+    def __init__(self, path):
+        self.path = path
+
+    def play(self):
+        print("WMA çalıyor")
+
+class M4A:
+    def __init__(self, path):
+        self.path = path
+
+    def play(self):
+        print("M4A çalıyor")
+
+def playMusic(p):
+    p.play()
+
+#mp3 = MP3('c:\\temp\\x.mp3')
+#wav = WAV('c:\\temp\\y.wav')
+#wma = WMA('c:\\temp\\z.wma')
+#m4a = M4A('c:\\temp\\k.m4a')
+#GNU/Linux'a göre düzenlenecektir.
+
+mp3 = MP3('/home/hwpplayer1/Music/x.mp3')
+wav = WAV('/home/hwpplayer1/Music/y.wav')
+wma = WMA('/home/hwpplayer1/Music/z.wma')
+m4a = M4A('/home/hwpplayer1/Music/k.m4a')
+
+playMusic(mp3)
+playMusic(wav)
+playMusic(wma)
+playMusic(m4a)
diff --git a/python-temel/polymorphism.py~ b/python-temel/polymorphism.py~
new file mode 100644
index 0000000..4e85e98
--- /dev/null
+++ b/python-temel/polymorphism.py~
@@ -0,0 +1,41 @@
+class MP3:
+    def __init__(self, path):
+        self.path = path
+
+    def play(self):
+        print("MP3 çalıyor")
+
+class WAV:
+    def __init__(self, path):
+        self.path = path
+
+    def play(self):
+        print("WAV çalıyor")
+
+class WMA:
+    def __init__(self, path):
+        self.path = path
+
+    def play(self):
+        print("WMA çalıyor")
+
+class M4A:
+    def __init__(self, path):
+        self.path = path
+
+    def play(self):
+        print("M4A çalıyor")
+
+def playMusic(p):
+    p.play()
+
+#mp3 = MP3('c:\\temp\\x.mp3')
+#wav = WAV('c:\\temp\\y.wav')
+#wma = WMA('c:\\temp\\z.wma')
+#m4a = M4A('c:\\temp\\k.m4a')
+#GNU/Linux'a göre düzenlenecektir.
+
+mp3 = MP3('/home/hwpplayer1/Music/x.mp3')
+wav = WAV('/home/hwpplayer1/Music/y.wav')
+wma = WMA('/home/hwpplayer1/Music/z.wma')
+m4a = M4A('/home/hwpplayer1/Music/k.m4a')