Fix race condition while iterating over clients

objects/tokenList.py

@@ -13,6 +13,13 @@ from objects import osuToken
 class tokenList:
 	def __init__(self):
 		self.tokens = {}
+		self._lock = threading.Lock()
+
+	def __enter__(self):
+		self._lock.acquire()
+
+	def __exit__(self, exc_type, exc_val, exc_tb):
+		self._lock.release()
 
 	def addToken(self, userID, ip = "", irc = False, timeOffset=0, tournament=False):
 		"""