save project

diy2.py

@@ -5,14 +5,12 @@ class Hero:
         self.hp = hp;
         self.attack = attack;
 
-def Upgrade(slef):
-    self.level += 1;
-    self.hp += 30;
-    self.attack += 5;
+    def Upgrade(self):
+        self.level += 1;
+        self.hp += 30;
+        self.attack += 5;
 
 player_first = Hero("first", 100, 20);
 player_second = Hero("second", 300, 10);
 
-
-Upgrade(player_first);
-Upgrade("first");
\ No newline at end of file
+Hero.Upgrade(player_first);
\ No newline at end of file