X-Git-Url: https://wannabe.guru.org/gitweb/?a=blobdiff_plain;f=persistent.py;h=c902313eb4a28cb4635779f584f8775a2b646d35;hb=f2600f30801c849fc1d139386e3ddc3c9eb43e30;hp=119931b8ccba607ccc48321ac6f3d6dd3dd5b791;hpb=713a609bd19d491de03debf8a4a6ddf2540b13dc;p=python_utils.git

diff --git a/persistent.py b/persistent.py
index 119931b..c902313 100644
--- a/persistent.py
+++ b/persistent.py
@@ -1,5 +1,9 @@
 #!/usr/bin/env python3
 
+"""A Persistent is just a class with a load and save method.  This
+module defines the Persistent base and a decorator that can be used to
+create a persistent singleton that autoloads and autosaves."""
+
 import atexit
 import datetime
 import enum
@@ -136,21 +140,21 @@ class persistent_autoloaded_singleton(object):
             # memory.
             if self.instance is not None:
                 logger.debug(
-                    f'Returning already instantiated singleton instance of {cls.__name__}.'
+                    'Returning already instantiated singleton instance of %s.', cls.__name__
                 )
                 return self.instance
 
             # Otherwise, try to load it from persisted state.
             was_loaded = False
-            logger.debug(f'Attempting to load {cls.__name__} from persisted state.')
+            logger.debug('Attempting to load %s from persisted state.', cls.__name__)
             self.instance = cls.load()
             if not self.instance:
                 msg = 'Loading from cache failed.'
                 logger.warning(msg)
-                logger.debug(f'Attempting to instantiate {cls.__name__} directly.')
+                logger.debug('Attempting to instantiate %s directly.', cls.__name__)
                 self.instance = cls(*args, **kwargs)
             else:
-                logger.debug(f'Class {cls.__name__} was loaded from persisted state successfully.')
+                logger.debug('Class %s was loaded from persisted state successfully.', cls.__name__)
                 was_loaded = True
 
             assert self.instance is not None