improved how the default logger is initialized

eh_logging/__init__.py

@@ -33,7 +33,7 @@ __all__ = tuple(logging__all__ + [
     'set_default_logger',
     'warning',
 ])
-__version__ = '0.1.6'
+__version__ = '0.1.7'
 __author__ = 'Eishausener <code@eishausener.de>'
 __name__ = 'eh_logging'
 
@@ -49,6 +49,9 @@ _DEBUG = False
 class DEFAULT:
     # -- Default Logger Name -- #
     LOGGER_NAME = 'eh_logging'
+    # -- Default Handler internal name -- #
+    HANDLER_NAME_STREAM = 'eh_logging-stream-default'
+    HANDLER_NAME_TEMP_STREAM = 'eh_logging-stream-helper'
     # -- Logger Space -- #
     SPACE_LOGGER_NAME = 11
     SPACE_LEVEL = 8
@@ -111,10 +114,10 @@ def _init():
         _logger = getLogger(DEFAULT.LOGGER_NAME)
         _changed = True
 
-    if not _logger.handlers:
+    if not _logger.hasHandlers():
         print_debug(f'[DEBUG] adding stream handler to logger. (addr: {id(_logger)})')
         _handler = StreamHandler()
-        _handler.name = 'eh_logging-stream-helper'  # should not be displayed. only for internal use
+        _handler.name = DEFAULT.HANDLER_NAME_TEMP_STREAM  # should not be displayed. only for internal use
         _logger.addHandler(_handler)
         _changed = True
 
@@ -611,14 +614,19 @@ def _init_default_logger():
     Initialize the default logger with a formatted logger
     :return:
     """
+    removed = False
     _logger = getLogger(DEFAULT.LOGGER_NAME)
+    for handler in _logger.handlers:
+        if handler.name == DEFAULT.HANDLER_NAME_TEMP_STREAM:
+            # remove temp handler
+            _logger.removeHandler(handler)
+            removed = True
+    if removed or not _logger.hasHandlers():
+        # add new formatted stream handler
         _formatter = FormatterColor()
         _handler = StreamHandler()
         _handler.setFormatter(_formatter)
-    _handler.name = 'eh_logging-stream-default'  # should not be displayed. only for internal use
-    # remove all handlers to prevent duplicate handlers
-    for handler in _logger.handlers:
-        _logger.removeHandler(handler)
+        _handler.name = DEFAULT.HANDLER_NAME_STREAM  # should not be displayed. only for internal use
         _logger.addHandler(_handler)
         _default_logger.set(_logger)