我试图判断字典是否是空的,但它的行为不正常.它只是跳过它,显示ONLINE,除了显示消息之外,没有任何其他内容.知道为什么吗?
def isEmpty(self, dictionary):
for element in dictionary:
if element:
return True
return False
def onMessage(self, socket, message):
if self.isEmpty(self.users) == False:
socket.send("Nobody is online, please use REGISTER command" \
" in order to register into the server")
else:
socket.send("ONLINE " + ' ' .join(self.users.keys()))