make *_logging_config independent from config.py

__init__.py

@@ -29,7 +29,6 @@ report (Report Module)
 __DEPENDENCIES__ = []
 
 import collections
-import config
 import json
 import logging
 from logging.config import dictConfig
@@ -37,6 +36,18 @@ import logging.handlers
 import os
 import sys
 
+try:
+    from config import DEBUG
+except ImportError:
+    DEBUG = True
+try:
+    from config import LOG_LEVEL
+except ImportError:
+    LOG_LEVEL = logging.DEBUG
+try:
+    from config import LOG_HOSTNAME
+except ImportError:
+    LOG_HOSTNAME = 'localhost'
 try:
     from config import APP_NAME as ROOT_LOGGER_NAME
 except ImportError:
@@ -205,14 +216,25 @@ def add_handler_socket(logger: logging.Logger, level: int = logging.DEBUG, host:
 
 
 def app_logging_config():
+    """You are able to configure logging by a config file including these line:
+
+    import logging
+
+
+    DEBUG = False
+    #
+    # Logging
+    #
+    LOG_HOSTNAME = "loggy"          # When DEBUG is True
+    """
     logger = logging.getLogger(ROOT_LOGGER_NAME)
-    if config.DEBUG:
-        add_handler_socket(logger, host=config.LOG_HOSTNAME)
+    if DEBUG:
+        add_handler_socket(logger, host=LOG_HOSTNAME)
     return logger.getChild('main')
 
 
 def default_logging_config(fmt=JOURNAL_FMT):
-    """This requires a config file with at least these line:
+    """You are able to configure logging by a config file including these line:
 
     import logging
 
@@ -227,7 +249,7 @@ def default_logging_config(fmt=JOURNAL_FMT):
     """
     logger = logging.getLogger(ROOT_LOGGER_NAME)
 
-    add_handler_stdout(logger, config.LOG_LEVEL, fmt=fmt)
+    add_handler_stdout(logger, LOG_LEVEL, fmt=fmt)
     return app_logging_config()