[chores] Minor formatting fixes

openwisp_controller/config/base/config.py

@@ -39,7 +39,7 @@ class AbstractConfig(BaseConfig):
         verbose_name=_('templates'),
         base_class=TemplatesThrough,
         blank=True,
-        help_text=_('configuration templates, applied from ' 'first to last'),
+        help_text=_('configuration templates, applied from first to last'),
     )
     vpn = models.ManyToManyField(
         get_model_name('config', 'Vpn'),

openwisp_controller/config/base/device.py

@@ -72,7 +72,7 @@ class AbstractDevice(OrgMixin, BaseModel):
         blank=True,
         null=True,
         db_index=True,
-        help_text=_('ip address of the management interface, ' 'if available'),
+        help_text=_('ip address of the management interface, if available'),
     )
     hardware_id = models.CharField(**(app_settings.HARDWARE_ID_OPTIONS))
 

openwisp_controller/config/base/multitenancy.py

@@ -15,7 +15,7 @@ class AbstractOrganizationConfigSettings(UUIDModel):
     registration_enabled = models.BooleanField(
         _('auto-registration enabled'),
         default=True,
-        help_text=_('Whether automatic registration of ' 'devices is enabled or not'),
+        help_text=_('Whether automatic registration of devices is enabled or not'),
     )
     shared_secret = KeyField(
         max_length=32,

openwisp_controller/config/base/template.py

@@ -58,14 +58,14 @@ class AbstractTemplate(ShareableOrgMixin, BaseConfig):
         choices=TYPE_CHOICES,
         default='generic',
         db_index=True,
-        help_text=_('template type, determines which ' 'features are available'),
+        help_text=_('template type, determines which features are available'),
     )
     default = models.BooleanField(
         _('enabled by default'),
         default=False,
         db_index=True,
         help_text=_(
-            'whether new configurations will have ' 'this template enabled by default'
+            'whether new configurations will have this template enabled by default'
         ),
     )
     auto_cert = models.BooleanField(

openwisp_controller/config/controller/views.py

@@ -176,10 +176,10 @@ def post(self, request, *args, **kwargs):
         # ("running" was changed to "applied")
         status = status if status != 'running' else 'applied'
         # call set_status_{status} method on Config model
-        method_name = 'set_status_{}'.format(status)
+        method_name = f'set_status_{status}'
         getattr(config, method_name)()
         return ControllerResponse(
-            'report-result: success\n' 'current-status: {}\n'.format(config.status),
+            f'report-result: success\ncurrent-status: {config.status}\n',
             content_type='text/plain',
         )
 

openwisp_controller/config/tests/test_vpn.py

@@ -149,7 +149,7 @@ def test_vpn_cert_and_ca_mismatch(self):
         except ValidationError as e:
             self.assertIn('cert', e.message_dict)
         else:
-            self.fail('Mismatch between ca and cert but ' 'ValidationError not raised')
+            self.fail('Mismatch between ca and cert but ValidationError not raised')
 
     def test_auto_client(self):
         vpn = self._create_vpn()