code quality

aircox/management/commands/archiver.py

@@ -1,41 +1,48 @@
+"""Handle archiving of logs in order to keep database light and fast.
+
+The logs are archived in gzip files, per day.
 """
-Handle archiving of logs in order to keep database light and fast. The
-logs are archived in gzip files, per day.
-"""
-from argparse import RawTextHelpFormatter
 import datetime
 import logging
+from argparse import RawTextHelpFormatter
 
 from django.core.management.base import BaseCommand
 from django.utils import timezone as tz
 
 import aircox.settings as settings
-from aircox.models import Log, Station
+from aircox.models import Log
 from aircox.models.log import LogArchiver
 
-logger = logging.getLogger('aircox.commands')
+logger = logging.getLogger("aircox.commands")
 
 
-class Command (BaseCommand):
+__all__ = ("Command",)
+
+
+class Command(BaseCommand):
     help = __doc__
 
     def add_arguments(self, parser):
         parser.formatter_class = RawTextHelpFormatter
-        group = parser.add_argument_group('actions')
+        group = parser.add_argument_group("actions")
         group.add_argument(
-            '-a', '--age', type=int,
+            "-a",
+            "--age",
+            type=int,
             default=settings.AIRCOX_LOGS_ARCHIVES_AGE,
-            help='minimal age in days of logs to archive. Default is '
-                 'settings.AIRCOX_LOGS_ARCHIVES_AGE'
+            help="minimal age in days of logs to archive. Default is "
+            "settings.AIRCOX_LOGS_ARCHIVES_AGE",
         )
         group.add_argument(
-            '-k', '--keep', action='store_true',
-            help='keep logs in database instead of deleting them'
+            "-k",
+            "--keep",
+            action="store_true",
+            help="keep logs in database instead of deleting them",
         )
 
     def handle(self, *args, age, keep, **options):
         date = datetime.date.today() - tz.timedelta(days=age)
         # FIXME: mysql support?
-        logger.info('archive logs for %s and earlier', date)
+        logger.info("archive logs for %s and earlier", date)
         count = LogArchiver().archive(Log.objects.filter(date__date__lte=date))
-        logger.info('total log archived %d', count)
+        logger.info("total log archived %d", count)