trivial: Resolve PEP8 issues with 'management'

(Added by Damien) This also moves from sys.stdout/sys.stderr to
self.stdout/self.stderr as adviced by the Django documentation.

Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Stephen Finucane <stephen.finucane@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>

2 files changed, 14 insertions, 17 deletions

diff --git a/patchwork/management/commands/cron.py b/patchwork/management/commands/cron.py
index 308b4b2..7c00ea3 100755
--- a/patchwork/management/commands/cron.py
+++ b/patchwork/management/commands/cron.py
@@ -1,14 +1,15 @@
-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 from patchwork.utils import send_notifications, do_expiry
 
+
 class Command(BaseCommand):
-    help = ('Run periodic patchwork functions: send notifications and ' 
+    help = ('Run periodic patchwork functions: send notifications and '
             'expire unused users')
 
     def handle(self, *args, **kwargs):
         errors = send_notifications()
         for (recipient, error) in errors:
             self.stderr.write("Failed sending to %s: %s" %
-                                (recipient.email, error))
+                              (recipient.email, error))
 
         do_expiry()
diff --git a/patchwork/management/commands/retag.py b/patchwork/management/commands/retag.py
index 677d1d6..96b1620 100644
--- a/patchwork/management/commands/retag.py
+++ b/patchwork/management/commands/retag.py
@@ -1,28 +1,24 @@
-
-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 from patchwork.models import Patch
-import sys
+
 
 class Command(BaseCommand):
     help = 'Update the tag (Ack/Review/Test) counts on existing patches'
     args = '[<patch_id>...]'
 
     def handle(self, *args, **options):
-
-        qs = Patch.objects
+        query = Patch.objects
 
         if args:
-            qs = qs.filter(id__in=args)
+            query = query.filter(id__in=args)
         else:
-            qs = qs.all()
+            query = query.all()
 
-        count = qs.count()
-        i = 0
+        count = query.count()
 
-        for patch in qs.iterator():
+        for i, patch in enumerate(query.iterator()):
             patch.refresh_tag_counts()
-            i += 1
             if (i % 10) == 0 or i == count:
-                sys.stdout.write('%06d/%06d\r' % (i, count))
-                sys.stdout.flush()
-        sys.stderr.write('\ndone\n')
+                self.stdout.write('%06d/%06d\r' % (i, count))
+                self.stdout.flush()
+        self.stderr.write('\ndone\n')