websocket搭建错误
用一下版本：
gevent == 1.2.2
Eel == 0.9.7
gevent-websocket == 0.10.1
greenlet == 0.4.13
PyInstaller == 3.3.1
gevent == 1.2.2
Eel == 0.9.7
gevent-websocket == 0.10.1
greenlet == 0.4.13
PyInstaller == 3.3.1
