diff --git a/dragonlib/utils/logging_utils.py b/dragonlib/utils/logging_utils.py
index <HASH>..<HASH> 100755
--- a/dragonlib/utils/logging_utils.py
+++ b/dragonlib/utils/logging_utils.py
@@ -66,7 +66,7 @@ def setup_logging(level, logger_name=None, handler=None, log_formatter=None):
         root_logger.info("Set %i level to logger %r", level, logger_name)
 
     if level == 100:
-        logger.handlers = ()
+        logger.handlers = (logging.NullHandler(),)
         logger.disabled = True
         return
Bugfix disable logging:

in logging is something like:

    if len(root.handlers) == 0:
        basicConfig()

;)