message: use importlib_metadata if possible
diff: @@ -8,6 +8,10 @@ from .connector_agent_python import read_sql as _read_sql
  try:
  from importlib.metadata import version
  __version__ = version(__name__)
  +except:
  + try:
  + from importlib_metadata import version
  + __version__ = version(__name__)
  except:
  pass
  