1.Python multiprocesses cannot queue information
2. Code:

from urllib import request
from bs4 import BeautifulSoup
from multiprocessing import Manager
from multiprocessing import Pool
import os

def hand_url(url,name,queue):
    room_message = {} -sharp

    print(name,os.getpid())
    one_roomlist=[]
    req=request.Request(url)
    req.add_header("User-Agent","Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36")
    with request.urlopen(req)as f:
        data = f.read().decode()
    soup = BeautifulSoup(data, "html.parser")
    clear_1 = soup.find_all(class_="table_type_7 responsive_table full_width t_align_l")
    clear_1 = clear_1[0].tbody.contents
    for i in clear_1:
        if i != "\n":
            message_small = []
            for x in i.strings:
                if x != "\n":
                    message_small.append(x)


            one_roomlist.append(message_small)

        room_message[name] = one_roomlist

                  -sharp
    print(room_message)
    queue.put(room_message)     -sharproom_message
    print("ok")



if __name__ == "__main__":
    queue=Manager().Queue()
    pool = Pool(4)
    pool.apply_async(hand_url,("http://202.115.129.139:81/trainingroomnote?roomid=91","A405",queue))
    pool.close()
    pool.join()
    print(queue.get())

3. Screenshot of the problem

4. It is OK for me to try to copy and add the content obtained by print (room_message) directly to the queue, but once it is changed to queue.put (room_message) program, it will be stuck here