Error opening Python Serial Port
Question: I am attempting to run a script that a classmate has written and demonstrated
to me. So I know the code is correct, it just has to do with the difference in
how our machines are configured. Here is the code:

    
    
    #!/usr/bin/python
    
    #import statements
    import serial
    import os
    import time
    
    #global constants
    control_byte = '\n'
    ACL_1_X_addr = ord('X')
    ACL_1_Y_addr = ord('Y')
    ACL_1_Z_addr = ord('Z')
    GYRO_1_X_addr = ord('I')
    GYRO_1_Y_addr = ord('J')
    GYRO_1_Z_addr = ord('K')
    
    
    #clear the screen
    os.system('clear')
    
    #initialize the serial port
    s = serial.Serial()
    s.port = 10
    s.baudrate = 56818
    s.open()
    

Everything runs up to the last line `s.open` where it gives me the error:

    
    
    Traceback (most recent call last):
      File "serial_reader.py", line 25, in <module>
        s.open()
      File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line 282, in open
        self._reconfigurePort()
      File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line 311, in _reconfigurePort
        raise SerialException("Could not configure port: %s" % msg)
    serial.serialutil.SerialException: Could not configure port: (5, 'Input/output error')
    

My guess is I need to change the port I am opening, but I have tried a few
others without and luck. Anybody have any ideas of what is happening?

Btw, I am using Python 2.7.4


Answer: Im guessing you need something like `s.port="/dev/ttys0"` ... the numeric port
is for "COM10" style windows ports that dont have a mapping into the
filesystem

your serial ports should list if you do `ls/dev/tty*`

