save project

my_music.py

@@ -23,10 +23,14 @@ while True:
         if event.type==locals.KEYDOWN:
             if event.key==locals.K_UP:
                 yl+=0.2
+                if yl>1:
+                    yl=1
                 pygame.mixer.music.set_volume(yl)
         if event.type==locals.KEYDOWN:
             if event.key==locals.K_DOWN:
                 yl-=0.2
+                if yl<0:
+                    yl=0
                 pygame.mixer.music.set_volume(yl)
     if pygame.mixer.music.get_busy()==False:
         pygame.mixer.music.play()