X-Git-Url: https://wannabe.guru.org/gitweb/?a=blobdiff_plain;f=persistent.py;h=119931b8ccba607ccc48321ac6f3d6dd3dd5b791;hb=413d28443c7308414e8d283b9c5b9037463274f3;hp=8832572e7b032ae71a7898ca6b21743cf7ce45bf;hpb=31c81f6539969a5eba864d3305f9fb7bf716a367;p=python_utils.git

diff --git a/persistent.py b/persistent.py
index 8832572..119931b 100644
--- a/persistent.py
+++ b/persistent.py
@@ -64,7 +64,7 @@ def was_file_written_today(filename: str) -> bool:
         return False
 
     mtime = file_utils.get_file_mtime_as_datetime(filename)
-    assert mtime
+    assert mtime is not None
     now = datetime.datetime.now()
     return mtime.month == now.month and mtime.day == now.day and mtime.year == now.year
 
@@ -81,7 +81,7 @@ def was_file_written_within_n_seconds(
         return False
 
     mtime = file_utils.get_file_mtime_as_datetime(filename)
-    assert mtime
+    assert mtime is not None
     now = datetime.datetime.now()
     return (now - mtime).total_seconds() <= limit_seconds
 
@@ -150,20 +150,15 @@ class persistent_autoloaded_singleton(object):
                 logger.debug(f'Attempting to instantiate {cls.__name__} directly.')
                 self.instance = cls(*args, **kwargs)
             else:
-                logger.debug(
-                    f'Class {cls.__name__} was loaded from persisted state successfully.'
-                )
+                logger.debug(f'Class {cls.__name__} was loaded from persisted state successfully.')
                 was_loaded = True
 
             assert self.instance is not None
 
             if self.persist_at_shutdown is PersistAtShutdown.ALWAYS or (
-                not was_loaded
-                and self.persist_at_shutdown is PersistAtShutdown.IF_NOT_LOADED
+                not was_loaded and self.persist_at_shutdown is PersistAtShutdown.IF_NOT_LOADED
             ):
-                logger.debug(
-                    'Scheduling a deferred called to save at process shutdown time.'
-                )
+                logger.debug('Scheduling a deferred called to save at process shutdown time.')
                 atexit.register(self.instance.save)
             return self.instance