message: System version checking now works as expected
diff: @@ -6,14 +6,14 @@ import sys
  import abc
  -# if sys.version_info >= (3, 4):
  +if (sys.version_info[0], sys.version_info[1]) >= (3, 4):
  ABC = abc.ABC
  -# else:
  -# ABC = abc.ABCMeta('ABC', (), {})
  +else:
  + ABC = abc.ABCMeta('ABC', (), {})
  -# if sys.version_info <= (3, 3):
  -# from monotonic import monotonic
  -# time.monotonic = monotonic
  +if (sys.version_info[0], sys.version_info[1]) <= (3, 3):
  + from monotonic import monotonic
  + time.monotonic = monotonic
  SYNC_BYTE = 0xAA
  CRC8_INIT = 0x42
  