diff --git a/python-temel/class.date.mutable.py b/python-temel/class.date.mutable.py
new file mode 100644
index 0000000..5b0f9b8
--- /dev/null
+++ b/python-temel/class.date.mutable.py
@@ -0,0 +1,12 @@
+class Date:
+    def set(self, day, month, year):
+        self.day = day
+        self.month = month
+        self.year = year
+
+    def disp(self):
+        print('{}/{}/{}'.format(self.day, self.month, self.year))
+
+date = Date()
+date.set(10, 12, 1990)
+date.disp()
diff --git a/python-temel/class.date.mutable.py~ b/python-temel/class.date.mutable.py~
new file mode 100644
index 0000000..c7c77dd
--- /dev/null
+++ b/python-temel/class.date.mutable.py~
@@ -0,0 +1,8 @@
+class Date:
+    def set(self, day, month, year):
+        self.day = day
+        self.month = month
+        self.year = year
+
+    def disp(self):
+        print('{}/{}/{}'.format(self.day, self.month, self.year))