def unpack(self, buff, offset=0):
"""Unpack a binary message into this object's attributes.
Unpack the binary value *buff* and update this object attributes based
on the results.
Args:
buff (bytes): Binary data package to be unpacked.
offset (int): Where to begin unpacking.
Raises:
Exception: If there is a struct unpacking error.
"""
def _int2hex(number):
return "{0:0{1}x}".format(number, 2)
try:
unpacked_data = struct.unpack('!6B', buff[offset:offset + 6])
except struct.error as exception:
raise exceptions.UnpackException('%s; %s: %s' %
(exception, offset, buff))
transformed_data = ':'.join([_int2hex(x) for x in unpacked_data])
self._value = transformed_data
def unpack(self, buff, offset=0):
"""Unpack a binary message into this object's attributes.
Unpack the binary value *buff* and update this object attributes based
on the results.
Args:
buff (bytes): Binary data package to be unpacked.
offset (int): Where to begin unpacking.
Raises:
Exception: If there is a struct unpacking error.
"""
try:
unpacked_data = struct.unpack('!4B', buff[offset:offset + 4])
self._value = '.'.join([str(x) for x in unpacked_data])
except struct.error as exception:
raise exceptions.UnpackException('%s; %s: %s' %
(exception, offset, buff))
