无法通过催眠端口打开串行端口

Question

I'm trying to read strings from a USB/Serial barcode scanner from a python script in Linux environment.
The device is named /dev/ttyUSB0 by the O.S.
I can read the "special file" from the shell. This command echoes every barcode I scan:

cat < /dev/ttyUSB0

当我尝试使用Pyserial在Python中打开串行设备时，就会发生问题。当我尝试时，我会发现一个错误。我想某些东西使串行端口初始化失败：

nando@nando-VirtualBox:~$ python3
Python 3.5.2 (default, Jan 26 2021, 13:30:48) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import serial
>>> serial.Serial('/dev/ttyUSB0')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3/dist-packages/serial/serialutil.py", line 180, in __init__
    self.open()
  File "/usr/lib/python3/dist-packages/serial/serialposix.py", line 313, in open
    self._update_rts_state()
  File "/usr/lib/python3/dist-packages/serial/serialposix.py", line 598, in _update_rts_state
    fcntl.ioctl(self.fd, TIOCMBIS, TIOCM_RTS_str)
BrokenPipeError: [Errno 32] Broken pipe

我使用Python 2.7和Python 3.5遇到相同的错误。
有什么想法吗？