I am trying to create a system contains network of computers where there is a master and multiple slaves. The master device would send commands over socket and slaves would answer to the commands. I found a useful material here and it worked. I was able to send data and receive answers.
So I decided to create a class for it to have server and client objects. When I created the Server and Client objects, the client object was working fine. But the Server Object although it looks like it working but it refuses connection.
ConnectionRefusedError: [WinError 10061] No connection could be made because the target machine actively refused it
Here my class:
import socket
from _thread import start_new_thread
class Communicator:
class Server:
def __init__(self, port, max_trans_length=128, logger=None):
self.logger = logger or getLogger("dummy")
self.port = port
self.ServerSocket = socket.socket()
self.mtl = max_trans_length
self.ThreadCount = 0
self.ServerSocket.bind((socket.gethostname(), self.port))
def threaded_client(self, connection):
connection.send(str.encode('Welcome to the Server'))
while True:
data = connection.recv(self.mtl)
reply = f"Received: {data.decode('utf-8')}"
if not data:
break
connection.sendall(str.encode(reply))
connection.close()
def listen(self):
print('Waiting for a Connection..')
self.ServerSocket.listen(5)
while True:
Client, address = self.ServerSocket.accept()
print('Connected to: ' + address[0] + ':' + str(address[1]))
start_new_thread(self.threaded_client, (Client,))
self.ThreadCount += 1
print('Thread Number: ' + str(self.ThreadCount))
self.ServerSocket.close()
class Client:
def __init__(self, host, port, max_trans_length=128, logger=None):
self.logger = logger or getLogger("dummy")
self.host = host
self.port = port
self.mtl = max_trans_length
self.ClientSocket = socket.socket()
print('Waiting for connection')
self.ClientSocket.connect((host, port))
_ = self.ClientSocket.recv(self.mtl)
def transmit(self, data):
self.ClientSocket.send(str.encode(data))
response = self.ClientSocket.recv(self.mtl)
print(response.decode('utf-8'))
def disconnect(self):
self.ClientSocket.close()
And here what i get:
I get similar error when I use a Linux machine.
