circle: fix flake8 warnings

circle/acl/models.py

@@ -246,8 +246,8 @@ class AclBase(Model):
 
     def save(self, *args, **kwargs):
         super(AclBase, self).save(*args, **kwargs)
-        if 'owner' in dict(self.ACL_LEVELS) and (hasattr(self, 'owner')
-                                                 and self.owner):
+        if 'owner' in dict(self.ACL_LEVELS) and (hasattr(self, 'owner') and
+                                                 self.owner):
             self.set_user_level(self.owner, 'owner')
 
     class Meta:

circle/circle/wsgi.py

@@ -46,7 +46,7 @@ os.environ.setdefault("DJANGO_SETTINGS_MODULE", "circle.settings.production")
 # This application object is used by any WSGI server configured to use this
 # file. This includes Django's development server, if the WSGI_APPLICATION
 # setting points here.
-from django.core.wsgi import get_wsgi_application
+from django.core.wsgi import get_wsgi_application  # noqa
 
 _application = get_wsgi_application()
 

circle/common/models.py

@@ -97,7 +97,7 @@ def has_prefix(activity_code, *prefixes):
     >>> assert has_prefix('foo.bar.buz', 'foo', 'bar', 'buz')
     >>> assert not has_prefix('foo.bar.buz', 'foo', 'buz')
     """
-    equal = lambda a, b: a == b
+    def equal(a, b): return a == b
     act_code_parts = split_activity_code(activity_code)
     prefixes = chain(*imap(split_activity_code, prefixes))
     return all(imap(equal, act_code_parts, prefixes))
@@ -112,7 +112,7 @@ def has_suffix(activity_code, *suffixes):
     >>> assert has_suffix('foo.bar.buz', 'foo', 'bar', 'buz')
     >>> assert not has_suffix('foo.bar.buz', 'foo', 'buz')
     """
-    equal = lambda a, b: a == b
+    def equal(a, b): return a == b
     act_code_parts = split_activity_code(activity_code)
     suffixes = list(chain(*imap(split_activity_code, suffixes)))
     return all(imap(equal, reversed(act_code_parts), reversed(suffixes)))
@@ -441,8 +441,8 @@ class HumanReadableObject(object):
     @classmethod
     def create(cls, user_text_template, admin_text_template=None, **params):
         return cls(user_text_template=user_text_template,
-                   admin_text_template=(admin_text_template
-                                        or user_text_template), params=params)
+                   admin_text_template=(admin_text_template or
+                                        user_text_template), params=params)
 
     def set(self, user_text_template, admin_text_template=None, **params):
         self._set_values(user_text_template,

circle/dashboard/autocomplete_light_registry.py

@@ -38,10 +38,10 @@ def highlight(field, q, none_wo_match=True):
         match = None
     if q and match is not None:
         match_end = match + len(q)
-        return (escape(field[:match])
-                + '<span class="autocomplete-hl">'
-                + escape(field[match:match_end])
-                + '</span>' + escape(field[match_end:]))
+        return (escape(field[:match]) +
+                '<span class="autocomplete-hl">' +
+                escape(field[match:match_end]) +
+                '</span>' + escape(field[match_end:]))
     elif none_wo_match:
         return None
     else:

circle/dashboard/forms.py

@@ -506,8 +506,8 @@ class TemplateForm(forms.ModelForm):
             self.allowed_fields = (
                 'name', 'access_method', 'description', 'system', 'tags',
                 'arch', 'lease', 'has_agent')
-        if (self.user.has_perm('vm.change_template_resources')
-                or not self.instance.pk):
+        if (self.user.has_perm('vm.change_template_resources') or
+                not self.instance.pk):
             self.allowed_fields += tuple(set(self.fields.keys()) -
                                          set(['raw_data']))
         if self.user.is_superuser:
@@ -523,8 +523,8 @@ class TemplateForm(forms.ModelForm):
             self.initial['max_ram_size'] = 512
 
         lease_queryset = (
-            Lease.get_objects_with_level("operator", self.user).distinct()
-            | Lease.objects.filter(pk=self.instance.lease_id).distinct())
+            Lease.get_objects_with_level("operator", self.user).distinct() |
+            Lease.objects.filter(pk=self.instance.lease_id).distinct())
 
         self.fields["lease"].queryset = lease_queryset
 

circle/dashboard/management/commands/init.py

@@ -64,8 +64,8 @@ class Command(BaseCommand):
     def handle(self, *args, **options):
         self.changed = False
 
-        if (DataStore.objects.exists() and Vlan.objects.exists()
-                and not options['force']):
+        if (DataStore.objects.exists() and Vlan.objects.exists() and
+                not options['force']):
             return self.print_state()
 
         admin = self.create(User, 'username', username=options['admin_user'],

circle/dashboard/tests/selenium/util.py

@@ -601,8 +601,8 @@ class CircleSeleniumMixin(SeleniumMixin):
             choices = self.driver.find_elements_by_css_selector(
                 "input[type='radio']")
             choice_list = [item for item in choices if (
-                'test' not in item.get_attribute('value')
-                and item.get_attribute('value') != 'base_vm')]
+                'test' not in item.get_attribute('value') and
+                item.get_attribute('value') != 'base_vm')]
             chosen = random.randint(0, len(choice_list) - 1)
             choice_list[chosen].click()
             self.driver.find_element_by_id(

circle/dashboard/views/user.py

@@ -545,8 +545,8 @@ class UserList(LoginRequiredMixin, PermissionRequiredMixin, SingleTableView):
 
         q = self.search_form.cleaned_data.get('s')
         if q:
-            filters = (Q(username__icontains=q) | Q(email__icontains=q)
-                       | Q(profile__org_id__icontains=q))
+            filters = (Q(username__icontains=q) | Q(email__icontains=q) |
+                       Q(profile__org_id__icontains=q))
             for w in q.split()[:3]:
                 filters |= (
                     Q(first_name__icontains=w) | Q(last_name__icontains=w))

circle/dashboard/views/vm.py

@@ -150,8 +150,8 @@ class VmDetailView(GraphMixin, CheckedDetailView):
 
         # resources forms
         can_edit = (
-            instance.has_level(user, "owner")
-            and self.request.user.has_perm("vm.change_resources"))
+            instance.has_level(user, "owner") and
+            self.request.user.has_perm("vm.change_resources"))
         context['resources_form'] = VmResourcesForm(
             can_edit=can_edit, instance=instance)
 
@@ -569,8 +569,8 @@ class VmResourcesChangeView(VmOperationView):
                     content_type="application=json"
                 )
             else:
-                return HttpResponseRedirect(instance.get_absolute_url()
-                                            + "#resources")
+                return HttpResponseRedirect(instance.get_absolute_url() +
+                                            "#resources")
         else:
             extra = form.cleaned_data
             extra['max_ram_size'] = extra['ram_size']
@@ -1261,8 +1261,9 @@ def vm_activity(request, pk):
     response['status'] = instance.status
     response['icon'] = instance.get_status_icon()
     latest = instance.get_latest_activity_in_progress()
-    response['is_new_state'] = (latest and latest.resultant_state is not None
-                                and instance.status != latest.resultant_state)
+    response['is_new_state'] = (latest and
+                                latest.resultant_state is not None and
+                                instance.status != latest.resultant_state)
 
     context = {
         'instance': instance,

circle/firewall/fields.py

@@ -188,11 +188,11 @@ class IPNetworkField(models.Field):
 
         if isinstance(value, IPNetwork):
             if self.version == 4:
-                return ('.'.join("%03d" % x for x in value.ip.words)
-                        + '/%02d' % value.prefixlen)
+                return ('.'.join("%03d" % x for x in value.ip.words) +
+                        '/%02d' % value.prefixlen)
             else:
-                return (':'.join("%04X" % x for x in value.ip.words)
-                        + '/%03d' % value.prefixlen)
+                return (':'.join("%04X" % x for x in value.ip.words) +
+                        '/%03d' % value.prefixlen)
         return value
 
     def formfield(self, **kwargs):

circle/firewall/models.py

@@ -700,8 +700,8 @@ class Host(models.Model):
         return self.vlan.network_type != 'public'
 
     def clean(self):
-        if (self.external_ipv4 and not self.shared_ip and self.behind_nat
-                and Host.objects.exclude(id=self.id).filter(
+        if (self.external_ipv4 and not self.shared_ip and self.behind_nat and
+                Host.objects.exclude(id=self.id).filter(
                     external_ipv4=self.external_ipv4)):
             raise ValidationError(_("If shared_ip has been checked, "
                                     "external_ipv4 has to be unique."))

circle/manager/scheduler.py

@@ -55,8 +55,8 @@ def select_node(instance, nodes):
     '''
     # check required traits
     nodes = [n for n in nodes
-             if n.schedule_enabled and n.online
-             and has_traits(instance.req_traits.all(), n)]
+             if n.schedule_enabled and n.online and
+             has_traits(instance.req_traits.all(), n)]
     if not nodes:
         logger.warning('select_node: no usable node for %s', unicode(instance))
         raise TraitsUnsatisfiableException()

circle/monitor/tasks/local_periodic_tasks.py

@@ -54,7 +54,7 @@ def measure_response_time():
 
 @celery.task(ignore_result=True)
 def check_celery_queues():
-    graphite_string = lambda component, hostname, celery, is_alive, time: (
+    def graphite_string(component, hostname, celery, is_alive, time): return (
         "%s.%s.celery-queues.%s %d %s" % (
             component, hostname, celery, 1 if is_alive else 0, time)
     )
@@ -92,7 +92,7 @@ def check_celery_queues():
 
 @celery.task(ignore_result=True)
 def instance_per_template():
-    graphite_string = lambda pk, state, val, time: (
+    def graphite_string(pk, state, val, time): return (
         "template.%d.instances.%s %d %s" % (
             pk, state, val, time)
     )
@@ -111,7 +111,7 @@ def instance_per_template():
 
 @celery.task(ignore_result=True)
 def allocated_memory():
-    graphite_string = lambda hostname, val, time: (
+    def graphite_string(hostname, val, time): return (
         "circle.%s.memory.allocated %d %s" % (
             hostname, val, time)
     )

circle/network/views.py

@@ -979,8 +979,8 @@ def remove_switch_port_device(request, **kwargs):
 def add_switch_port_device(request, **kwargs):
     device_name = request.POST.get('device_name')
 
-    if (request.method == "POST" and device_name and len(device_name) > 0
-       and EthernetDevice.objects.filter(name=device_name).count() == 0):
+    if (request.method == "POST" and device_name and len(device_name) > 0 and
+            EthernetDevice.objects.filter(name=device_name).count() == 0):
 
         switch_port = SwitchPort.objects.get(pk=kwargs['pk'])
         new_device = EthernetDevice(name=device_name, switch_port=switch_port)

circle/vm/models/activity.py

@@ -145,8 +145,8 @@ class InstanceActivity(ActivityModel):
 
     def has_percentage(self):
         op = self.instance.get_operation_from_activity_code(self.activity_code)
-        return (self.task_uuid and op and op.has_percentage
-                and not self.finished)
+        return (self.task_uuid and op and op.has_percentage and
+                not self.finished)
 
     def get_percentage(self):
         """Returns the percentage of the running operation if available.

circle/vm/models/common.py

@@ -174,6 +174,6 @@ class Trait(Model):
     @property
     def in_use(self):
         return (
-            self.instance_set.exists() or self.node_set.exists()
-            or self.instancetemplate_set.exists()
+            self.instance_set.exists() or self.node_set.exists() or
+            self.instancetemplate_set.exists()
         )

circle/vm/models/instance.py

@@ -852,8 +852,8 @@ class Instance(AclBase, VirtualMachineDescModel, StatusModel, OperatedMixin,
 
     def is_in_status_change(self):
         latest = self.get_latest_activity_in_progress()
-        return (latest and latest.resultant_state is not None
-                and self.status != latest.resultant_state)
+        return (latest and latest.resultant_state is not None and
+                self.status != latest.resultant_state)
 
     @property
     def metric_prefix(self):

circle/vm/operations.py

@@ -133,8 +133,8 @@ class InstanceOperation(Operation):
 
         super(InstanceOperation, self).check_auth(user=user)
 
-        if (self.instance.node and not self.instance.node.online
-                and not user.is_superuser):
+        if (self.instance.node and not self.instance.node.online and
+                not user.is_superuser):
             raise self.instance.WrongStateError(self.instance)
 
     def create_activity(self, parent, user, kwargs):
@@ -534,8 +534,8 @@ class MigrateOperation(RemoteInstanceOperation):
     remote_timeout = 1000
 
     def _get_remote_args(self, to_node, live_migration, **kwargs):
-        return (super(MigrateOperation, self)._get_remote_args(**kwargs)
-                + [to_node.host.hostname, live_migration])
+        return (super(MigrateOperation, self)._get_remote_args(**kwargs) +
+                [to_node.host.hostname, live_migration])
 
     def rollback(self, activity):
         with activity.sub_activity(
@@ -908,8 +908,8 @@ class SleepOperation(InstanceOperation):
 
         def _get_remote_args(self, **kwargs):
             return (super(SleepOperation.SuspendVmOperation, self)
-                    ._get_remote_args(**kwargs)
-                    + [self.instance.mem_dump['path']])
+                    ._get_remote_args(**kwargs) +
+                    [self.instance.mem_dump['path']])
 
 
 @register_operation
@@ -962,8 +962,8 @@ class WakeUpOperation(InstanceOperation):
 
         def _get_remote_args(self, **kwargs):
             return (super(WakeUpOperation.WakeUpVmOperation, self)
-                    ._get_remote_args(**kwargs)
-                    + [self.instance.mem_dump['path']])
+                    ._get_remote_args(**kwargs) +
+                    [self.instance.mem_dump['path']])
 
 
 @register_operation
@@ -1408,9 +1408,9 @@ class PasswordResetOperation(RemoteAgentOperation):
     task = agent_tasks.change_password
     required_perms = ()
 
-    def _get_remote_args(self, password, **kwargs):
-        return (super(PasswordResetOperation, self)._get_remote_args(**kwargs)
-                + [password])
+    def _get_remote_args(self, password, **kwrgs):
+        return (super(PasswordResetOperation, self)._get_remote_args(**kwrgs) +
+                [password])
 
     def _operation(self, password=None):
         if not password:
@@ -1433,8 +1433,8 @@ class InstallKeysOperation(RemoteAgentOperation):
     def _get_remote_args(self, user, keys=None, **kwargs):
         if keys is None:
             keys = list(user.userkey_set.values_list('key', flat=True))
-        return (super(InstallKeysOperation, self)._get_remote_args(**kwargs)
-                + [keys])
+        return (super(InstallKeysOperation, self)._get_remote_args(**kwargs) +
+                [keys])
 
 
 @register_operation
@@ -1446,8 +1446,8 @@ class RemoveKeysOperation(RemoteAgentOperation):
     required_perms = ()
 
     def _get_remote_args(self, user, keys, **kwargs):
-        return (super(RemoveKeysOperation, self)._get_remote_args(**kwargs)
-                + [keys])
+        return (super(RemoveKeysOperation, self)._get_remote_args(**kwargs) +
+                [keys])
 
 
 @register_operation
@@ -1541,8 +1541,8 @@ class AgentStartedOperation(InstanceOperation):
 
         def _get_remote_args(self, **kwargs):
             cls = AgentStartedOperation.SetTimeOperation
-            return (super(cls, self)._get_remote_args(**kwargs)
-                    + [time.time()])
+            return (super(cls, self)._get_remote_args(**kwargs) +
+                    [time.time()])
 
     @register_operation
     class SetHostnameOperation(SubOperationMixin, RemoteAgentOperation):
@@ -1552,8 +1552,8 @@ class AgentStartedOperation(InstanceOperation):
 
         def _get_remote_args(self, **kwargs):
             cls = AgentStartedOperation.SetHostnameOperation
-            return (super(cls, self)._get_remote_args(**kwargs)
-                    + [self.instance.short_hostname])
+            return (super(cls, self)._get_remote_args(**kwargs) +
+                    [self.instance.short_hostname])
 
     @register_operation
     class RestartNetworkingOperation(SubOperationMixin, RemoteAgentOperation):
@@ -1572,8 +1572,8 @@ class AgentStartedOperation(InstanceOperation):
             interfaces = {str(host.mac): host.get_network_config()
                           for host in hosts}
             cls = AgentStartedOperation.ChangeIpOperation
-            return (super(cls, self)._get_remote_args(**kwargs)
-                    + [interfaces, settings.FIREWALL_SETTINGS['rdns_ip']])
+            return (super(cls, self)._get_remote_args(**kwargs) +
+                    [interfaces, settings.FIREWALL_SETTINGS['rdns_ip']])
 
 
 @register_operation
@@ -1697,8 +1697,8 @@ class AbstractDiskOperation(SubOperationMixin, RemoteInstanceOperation):
     required_perms = ()
 
     def _get_remote_args(self, disk, **kwargs):
-        return (super(AbstractDiskOperation, self)._get_remote_args(**kwargs)
-                + [disk.get_vmdisk_desc()])
+        return (super(AbstractDiskOperation, self)._get_remote_args(**kwargs) +
+                [disk.get_vmdisk_desc()])
 
 
 @register_operation