message: Fix up python3 bytes/str incompatibility
diff: @@ -52,7 +52,7 @@ def extract_all_strings_from_event_trace(events):
  result = ""
  for e in events:
  evt = IpuTraceEvent.FromString(e)
  - result = result + evt.data_str
  + result = result + evt.data_str.decode('utf-8')
  return result
  def extract_all_types_from_event_trace(events):
  @@ -75,7 +75,7 @@ def extract_all_io_events(events):
  evt = IpuTraceEvent.FromString(e)
  if evt.type in [IpuTraceEvent.HOST_TO_DEVICE_TRANSFER,
  IpuTraceEvent.DEVICE_TO_HOST_TRANSFER]:
  - result += [(evt.type, evt.data_str)]
  + result += [(evt.type, evt.data_str.decode('utf-8'))]
  return result
  def ipu_compile_summary(name, op_list, collections=None):
  