Init logger

singer/logger.py

@@ -3,17 +3,34 @@
 import os
 
 
-def get_logger():
-    """Return a Logger instance appropriate for using in a Tap or a Target."""
+_INIT_LOGGER = True
+
+
+def init_logger():
+    """Initialize the Logger instance."""
+    # pylint: disable=W0603
+    global _INIT_LOGGER
+
     this_dir, _ = os.path.split(__file__)
-    path = os.path.join(this_dir, 'logging.conf')
+    path = os.path.join(this_dir, "logging.conf")
+
     # See
     # https://docs.python.org/3.5/library/logging.config.html#logging.config.fileConfig
     # for a discussion of why or why not to set disable_existing_loggers
     # to False. The long and short of it is that if you don't set it to
     # False it ruins external module's abilities to use the logging
     # facility.
     logging.config.fileConfig(path, disable_existing_loggers=False)
+
+    # Only initialize the logger once.
+    _INIT_LOGGER = False
+
+
+def get_logger():
+    """Return a Logger instance appropriate for using in a Tap or a Target."""
+    if _INIT_LOGGER:
+        init_logger()
+
     return logging.getLogger()