# coding: utf-8
import socket
TCP_IP = '127.0.0.1'
TCP_PORT = 5100
BUFFER_SIZE = 10240  # Normally 1024, but we want fast response
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((TCP_IP, TCP_PORT))
s.listen(2)
conn, addr = s.accept()
print ('Connection address:', addr)
while 1:
    data = conn.recv(BUFFER_SIZE)
    print(data)
    dataUtf = data.decode('utf-8')
    print(dataUtf)
    if not data: break
    print ("received data:", dataUtf)
    sendText = "Echo Text: " + dataUtf
    conn.send((sendText).encode('utf-8')) # echo
conn.close()

Connection address: ('127.0.0.1', 53868)
b'\xd0\xa0\xd0\xb8\xd0\xba'
Рик
received data: Рик