What's the problem? Help!

[RavenCri]

I have written a small case using socketIo, and I would like to ask why an error is reported here. I tried to send a message back to the server after the client received the message, but I got an error

 File "D:\pyCode\miaosuyun-service\venv\Lib\site-packages\socketio\client.py", line 393, in emit
    raise exceptions.BadNamespaceError(
socketio.exceptions.BadNamespaceError: / is not a connected namespace.

The last statement of the queryInfo method returns an error

service

import hashlib
import json
import time
from hashlib import md5
from threading import Thread

import eventlet
eventlet.monkey_patch()

import socketio
import eventlet.wsgi

sio = socketio.Server(async_mode='eventlet', cors_allowed_origins='*')  # 指明在evenlet模式下
@sio.event
def connect(sid, environ):
    sid_ls.update({sid: {
        'data': []
    }})
    Thread(target=hello).start()
    print(f"connect, sid={sid}, environ={environ}")

@sio.event
def disconnect(sid):
    print(f"{sid}断开")
    del sid_ls[sid]
    pass
@sio.event
def response(sid, data):
    print(f'{sid}响应的数据:', data)

def hello(data=None):
    data = {'courseUsername': 'test'}
    print('server receive:', data)
    client = list(sid_ls.keys())[0]
    extract_data = {
        'query_data': data,
        'md5': hashlib.md5(json.dumps(data).encode(encoding='utf-8')).hexdigest(),
        "response": None
    }
    sid_ls[client]['data'].append(extract_data)
    sio.emit(event='queryInfo', data=json.dumps(extract_data), to=client, namespace='/')

app = socketio.Middleware(sio)

eventlet.wsgi.server(eventlet.listen(('', 8866)), app,)

client

import json

import socketio

sio = socketio.Client()


@sio.event
def connect():
    print(f"client connect")
    sio.emit('client', {'foo': 'bar'})

@sio.event
def disconnect():
    print('disconnected from server')
    sio.disconnect()


@sio.event
def queryInfo(query):
    print(f'查询的数据:', query)
    query_json = json.loads(query)
    ### ERROR #####
    sio.emit('client', {"md5": query_json['md5'], "response": {"courseData": [{'courseName': '今日的日本'}]}})
sio.connect('http://localhost:8866')
sio.wait()

[miguelgrinberg]

Please do not write issues on this package when you have a question. There is a discussion board for questions. This time I have moved your question to the discussion boards myself.

With regards to your question, you need to look at the server output, you have errors in your server code that you need to fix. The connection does not happen because your code is crashing.

NameError: name 'sid_ls' is not defined

[RavenCri]

sid_ls = {}
Extraction code forgot that. haha