-from pygame.locals import USEREVENT
-TIMEOUT = USEREVENT + 1
-NOTEON = USEREVENT + 2
-NOTEOFF = USEREVENT + 3
-COLDOWN = USEREVENT + 4
-COLUP = USEREVENT + 5
+import pygame
+base = pygame.USEREVENT
+print 'events base :', pygame.USEREVENT
+TIMEOUT = base + 1
+NOTEON = base + 2
+NOTEOFF = base + 3
+NOTEEND = base + 4
+COLDOWN = base + 5
+COLUP = base + 6
+COLOVER = base + 7
+
+pygame.USEREVENT = COLOVER
+if pygame.USEREVENT > pygame.NUMEVENTS :
+ pygame.NUMEVENTS = pygame.USEREVENT