Use importlib.resources to load default logging config file

setup.py

@@ -15,7 +15,8 @@
           'simplejson==3.11.1',
           'python-dateutil>=2.6.0',
           'backoff==1.8.0',
-	  'ciso8601',
+          'ciso8601',
+          'importlib-resources>=1.3; python_version<"3.9"',
       ],
       extras_require={
           'dev': [

singer/logger.py

@@ -1,19 +1,24 @@
 import logging
 import logging.config
-import os
+import sys
+
+if sys.version_info < (3, 9):
+    import importlib_resources
+else:
+    from importlib import resources as importlib_resources
 
 
 def get_logger():
     """Return a Logger instance appropriate for using in a Tap or a Target."""
-    this_dir, _ = os.path.split(__file__)
-    path = os.path.join(this_dir, 'logging.conf')
+    path = importlib_resources.files(__package__).joinpath('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)
+    with path.open() as f:
+        logging.config.fileConfig(f, disable_existing_loggers=False)
     return logging.getLogger()