WARNING: root:Setting up a new session... ERROR:tornado.application:Uncaught exception POST /env/Basic_Unet (127.0.0.1) HTTPServerRequest(protocol='http', host='localhost:8080', method='POST', uri='/env/Basic_Unet', version='HTTP/1.1', remote_ip='127.0.0.1') Traceback (most recent call last): File "/home/kleina/Envs/unet_example1/lib/python3.5/site-packages/tornado/web.py", line 1590, in _execute result = method(*self.path_args, **self.path_kwargs) File "/home/kleina/Envs/unet_example1/lib/python3.5/site-packages/visdom/server.py", line 1086, in post username = json_obj["username"] KeyError: 'username' ERROR:root:ERROR: 500: {'exc_info': (<class 'KeyError'>, KeyError('username',), <traceback object at 0x7f15b3268388>)} ERROR:tornado.access:500 POST /env/Basic_Unet (127.0.0.1) 1.45ms ERROR:visdom:Handshake status 200 OK ERROR:visdom:Handshake status 200 OK ERROR:visdom:Handshake status 200 OK WARNING:visdom:Visdom python client failed to establish socket to get messages from the server. This feature is optional and can be disabled by initializing Visdom with use_incoming_socket=False, which will prevent waiting for this request to timeout.