code: def handle_read(self):
          
          while True:
              try:
                  c = self.recv(1)
              except socket.error as e:
                  if e.errno == errno.EWOULDBLOCK:
                      return
                  else:
                      raise
              else:
                  self._do(c)
                  self.socket.setblocking(True)
                  self.send(b'A')
                  self.socket.setblocking(False)
docs: Handle all the available character commands in the socket