# This file is part of cloud-init. See LICENSE file for license information.

try:

from serial import Serial

except ImportError:

# For older versions of python (ie 2.6) pyserial may not exist and/or

# work and/or be installed, so make a dummy/fake serial that blows up

# when used...

class Serial(object):

def __init__(self, *args, **kwargs):

pass

@staticmethod

def isOpen():

return False

@staticmethod

def write(data):

raise IOError("Unable to perform serial `write` operation,"

" pyserial not installed.")

@staticmethod

def readline():

raise IOError("Unable to perform serial `readline` operation,"

" pyserial not installed.")

@staticmethod

def flush():

raise IOError("Unable to perform serial `flush` operation,"

" pyserial not installed.")

@staticmethod

def read(size=1):

raise IOError("Unable to perform serial `read` operation,"

" pyserial not installed.")

# vi: ts=4 expandtab