Traceback (most recent call last):
  File "word-roller.py", line 7, in <module>
    printer = serial.Serial('/dev/usb/lp0',19200,timeout = 5)      # open serial ports
  File "/usr/local/lib/python2.7/dist-packages/serial/serialutil.py", line 236, in __init__
    self.open()
  File "/usr/local/lib/python2.7/dist-packages/serial/serialposix.py", line 272, in open
    self._reconfigure_port(force_update=True)
  File "/usr/local/lib/python2.7/dist-packages/serial/serialposix.py", line 315, in _reconfigure_port
    raise SerialException("Could not configure port: {}".format(msg))
serial.serialutil.SerialException: Could not configure port: (25, 'Inappropriate ioctl for device')

import serial
     printer = serial.Serial('/dev/usb/lp0',19200,timeout = 5)