#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import pyvisa


rm = pyvisa.ResourceManager('@sim')
rm.list_resources()

instr = rm.open_resource('ASRL1::INSTR',
                         timeout=30,
                         read_termination="\n",
                         )

print(instr.query('?IDN'))
instr.write('?IDN')
print(instr.bytes_in_buffer)