Code cleanup some small changes in the formatting.

src/mahjong_ranking/managers.py

@@ -39,7 +39,7 @@ class HanchanManager(models.Manager):
             models.Q(player4=user, player4_dan_points__isnull=False)
         ).filter(confirmed=True, **filter_args)
         queryset = queryset.select_related().order_by('-start')
-        [ hanchan.get_playerdata(user) for hanchan in queryset ]
+        [hanchan.get_playerdata(user) for hanchan in queryset]
         return queryset
 
     def kyu_hanchans(self, user, **filter_args):
@@ -57,7 +57,7 @@ class HanchanManager(models.Manager):
             models.Q(player4=user, player4_kyu_points__isnull=False)
         ).filter(confirmed=True, **filter_args)
         queryset = queryset.select_related().order_by('-start')
-        [ hanchan.get_playerdata(user) for hanchan in queryset ]
+        [hanchan.get_playerdata(user) for hanchan in queryset]
         return queryset
 
     def season_hanchans(self, user=None, season=None):
@@ -87,7 +87,7 @@ class HanchanManager(models.Manager):
         else:
             queryset = queryset.filter(**filter_args)
         queryset = queryset.select_related().order_by('-start')
-        [ hanchan.get_playerdata(user) for hanchan in queryset ]
+        [hanchan.get_playerdata(user) for hanchan in queryset]
         return queryset
 
     def unconfirmed_hanchans(self, user=None, **filter_args):

src/mahjong_ranking/middleware.py

@@ -5,10 +5,10 @@ from mahjong_ranking import models
 from . import LOGGER, MIN_HANCHANS_FOR_LADDER
 
 
-class DenormalizationUpdateMiddleware(object):  # Ignore PyLintBear (R0903)
+class DenormalizationUpdateMiddleware(object):
     """To recalculate everything in the queues at the end of a POST request."""
 
-    def process_response(self, request, response):  # Ignore PyLintBear (R0201)
+    def process_response(self, request, response):
         """Check and process the recalculation queues on each POST request.
 
         :param request: the django HttpRequest object

src/maistar_ranking/models.py

@@ -4,7 +4,9 @@ import logging
 
 from django.core.urlresolvers import reverse
 from django.db import models
+from django.db.models.signals import post_delete, post_save
 from django.utils.translation import ugettext as _
+from django.dispatch import receiver
 
 from events.models import Event
 from . import settings, managers
@@ -197,9 +199,14 @@ class Ranking(models.Model):
         self.save()
 
 
-def update_maistar_ranking(sender, instance, **kwargs):
-    """A Django signal hook to trigger a recalculation of the rankings as soon
-    as a Mai-Star game has been added, deleted, or modified."""
+@receiver([post_delete, post_save], sender=Game)
+def update_maistar_ranking(sender, **kwargs):
+    """
+    A Django signal hook to trigger a recalculation of the rankings as soon
+    as a Mai-Star game has been added, deleted, or modified.
+    :param sender: The callback function which will be connected to this signal. See Receiver functions for more information.
+    :param kwargs: """
+    instance = kwargs['instance']
     for player in instance.player_list:
         ranking, created = Ranking.objects.get_or_create(
             user=player['user'],
@@ -213,7 +220,3 @@ def update_maistar_ranking(sender, instance, **kwargs):
                           player['user'].username, instance.season)
         ranking.recalculate()
     Ranking.objects.calculate_rankings(instance.season)
-
-
-models.signals.post_delete.connect(update_maistar_ranking, sender=Game)
-models.signals.post_save.connect(update_maistar_ranking, sender=Game)

src/membership/admin.py

@@ -9,19 +9,26 @@ from easy_thumbnails import fields, widgets
 from membership.models import Membership, ActivationRequest
 
 
-def activate_user(modeladmin, request, queryset):  # Ignore PyLintBear (W0613)
-    """Triggers activation of the selects actication requests by hand."""
-    for activation in queryset:
-        membership = Membership.objects.get(username=activation.user.username)
-        membership.save()
-        activation.activate()
+def activate_user(modeladmin, request, queryset):
+    """Triggers activation of the selects actication requests by hand.
+
+    :param modeladmin: The ModelAdmin that triggered this action.
+    :param request: An HttpRequest representing the current request.
+    :param queryset: A QuerySet containing the objects selected by the user.
+    """
+    [activation.activate() for activation in queryset ]
 
 
 activate_user.short_description = _('Activate selected User')
 
 
 def cleanup_activation(modeladmin, request, queryset):  # Ignore PyLintBear (W0613)
-    """Delete every selected activation request that has been expired."""
+    """Delete every selected activation request that has been expired.
+
+    :param modeladmin: The ModelAdmin that triggered this action.
+    :param request: An HttpRequest representing the current request.
+    :param queryset: A QuerySet containing the objects selected by the user.
+    """
     for activation in queryset:
         if activation.expired:
             activation.user.delete()

src/membership/models.py

@@ -56,8 +56,8 @@ class ActivationManager(models.Manager):
         """Creates a PendingActivation instance with an random activation key.
         @param user: the user that requests activation.
         """
-        salt = str(user.pk * random.random()) + \
-               user.registration_date.isoformat()
+        salt = str(user.pk * random.random())
+        salt += user.registration_date.isoformat()
         activation_key = hashlib.sha1(salt.encode()).hexdigest()
         return self.create(user=user, activation_key=activation_key)