serial sync client `is_socket_open` method throws type error

[dhoomakethu]

Versions

• Python: 2.7/3+
• OS: ALL
• Pymodbus: 1.5.1
• Modbus Hardware (if used): NA

Pymodbus Specific

• Server: tcp/rtu/ascii - sync/async
• Client: tcp/rtu/ascii - sync/async

Description

serial sync client is_socket_open method throws type error

Code and Logs

from pymodbus.client.sync import ModbusSerialClient as Client
c = Client(port="/dev/ttyp0")
c.is_socket_open()

TypeError: 'bool' object is not callable
 File "pymodbus/client/sync.py", line 532, in is_socket_open
    return self.socket.is_open()

'bool' object is not callable