fix core.py

Author: leasunhy

core.py

@@ -1,4 +1,5 @@
 from server import create_app
+from gevent.wsgi import WSGIServer
 
 # Change the host and port here
 HOST = '0.0.0.0'
@@ -12,6 +13,7 @@
 
 if __name__ == '__main__':
     #app.run(**kwargs)
+    from gevent import monkey
     monkey.patch_socket()
     server = WSGIServer((HOST, PORT), app)
     server.serve_forever()