Thread Error:OSError: [WinError 10038] 在一个非套接字上尝试了一个操作

[alexchan0412]

Good afternoon,I'm come form china
I wrote the code below:
`from opcua import Client
import time
from threading import Thread
import queue
work = queue.Queue(1000)
client = Client("opc.tcp://127.0.0.1:49320")
def task1(): # 定义任务1
try:
while 1:
client.connect()
T = client.get_node('ns=2;s=test.mac.TA1').get_value()
work.put(T)
time.sleep(0.1)
except Exception as e:
print(e)
finally:
client.disconnect()

def task2():
while 1:
time.sleep(0.5)
print(work.get())

def main(): # 定义main函数
t1 = Thread(target=task1) # 定义线程t1，线程任务为调用task1函数，task1函数的参数是6
t2 = Thread(target=task2) # 定义线程t2，线程任务为调用task2函数，task2函数无参数
t1.start() # 开始运行t1线程
# t1.join() # t1线程完成了才执行后续的动作
t2.start() # 开始运行t2线程

if name == 'main':
main() # 调用main函数`

Error Meessage:
Exception in thread Thread-1:
Traceback (most recent call last):
File "C:\Users\chenh\AppData\Local\Programs\Python\Python39\lib\site-packages\opcua\client\client.py", line 299, in disconnect
self.close_secure_channel()
File "C:\Users\chenh\AppData\Local\Programs\Python\Python39\lib\site-packages\opcua\client\client.py", line 343, in close_secure_channel
return self.uaclient.close_secure_channel()
File "C:\Users\chenh\AppData\Local\Programs\Python\Python39\lib\site-packages\opcua\client\ua_client.py", line 282, in close_secure_channel
return self._uasocket.close_secure_channel()
File "C:\Users\chenh\AppData\Local\Programs\Python\Python39\lib\site-packages\opcua\client\ua_client.py", line 223, in close_secure_channel
future = self._send_request(request, message_type=ua.MessageType.SecureClose)
File "C:\Users\chenh\AppData\Local\Programs\Python\Python39\lib\site-packages\opcua\client\ua_client.py", line 72, in _send_request
self._socket.write(msg)
File "C:\Users\chenh\AppData\Local\Programs\Python\Python39\lib\site-packages\opcua\common\utils.py", line 118, in write
self.socket.sendall(data)
OSError: [WinError 10038] 在一个非套接字上尝试了一个操作。

How can i fix it?
Now in china,many engineer want use Python in electric design.
But only some people use FreeOpcUA in learning video
No one konws haw to use it in internet
who can teach me??

[AndreasHeine]

your issue does not really look like a issue with this library rather like a issue in using threading module! the issue with most youtube videos online is that they just show hello world stuff which does not mirror industrial production usecases and the real world. if you really want to use OPC UA you need at least read Part 1 of the spec which shows the concepts of it.

[swamper123]

Hey ho,

this repository is not maintained anymore.

Please switch to our other repository: https://github.com/FreeOpcUa/opcua-asyncio
We have got some examples there, how to use the library.

We have a discussion board for questions as well for more questions.