diff --git a/passbook/admin/views/policies.py b/passbook/admin/views/policies.py
index 9f4678561..e8a009bd2 100644
--- a/passbook/admin/views/policies.py
+++ b/passbook/admin/views/policies.py
@@ -29,9 +29,7 @@ class PolicyListView(LoginRequiredMixin, PermissionListMixin, ListView):
     template_name = "administration/policy/list.html"
 
     def get_context_data(self, **kwargs):
-        kwargs["types"] = {
-            x.__name__: x for x in all_subclasses(Policy)
-        }
+        kwargs["types"] = {x.__name__: x for x in all_subclasses(Policy)}
         return super().get_context_data(**kwargs)
 
     def get_queryset(self):
diff --git a/passbook/admin/views/property_mapping.py b/passbook/admin/views/property_mapping.py
index c1edb5815..0f3d9ffa9 100644
--- a/passbook/admin/views/property_mapping.py
+++ b/passbook/admin/views/property_mapping.py
@@ -26,9 +26,7 @@ class PropertyMappingListView(LoginRequiredMixin, PermissionListMixin, ListView)
     paginate_by = 40
 
     def get_context_data(self, **kwargs):
-        kwargs["types"] = {
-            x.__name__: x for x in all_subclasses(PropertyMapping)
-        }
+        kwargs["types"] = {x.__name__: x for x in all_subclasses(PropertyMapping)}
         return super().get_context_data(**kwargs)
 
     def get_queryset(self):
diff --git a/passbook/admin/views/providers.py b/passbook/admin/views/providers.py
index 11a287a36..da9a1c761 100644
--- a/passbook/admin/views/providers.py
+++ b/passbook/admin/views/providers.py
@@ -26,9 +26,7 @@ class ProviderListView(LoginRequiredMixin, PermissionListMixin, ListView):
     ordering = "id"
 
     def get_context_data(self, **kwargs):
-        kwargs["types"] = {
-            x.__name__: x for x in all_subclasses(Provider)
-        }
+        kwargs["types"] = {x.__name__: x for x in all_subclasses(Provider)}
         return super().get_context_data(**kwargs)
 
     def get_queryset(self):
diff --git a/passbook/admin/views/sources.py b/passbook/admin/views/sources.py
index 68d908f3a..a8751be9f 100644
--- a/passbook/admin/views/sources.py
+++ b/passbook/admin/views/sources.py
@@ -26,9 +26,7 @@ class SourceListView(LoginRequiredMixin, PermissionListMixin, ListView):
     template_name = "administration/source/list.html"
 
     def get_context_data(self, **kwargs):
-        kwargs["types"] = {
-            x.__name__: x for x in all_subclasses(Source)
-        }
+        kwargs["types"] = {x.__name__: x for x in all_subclasses(Source)}
         return super().get_context_data(**kwargs)
 
     def get_queryset(self):
diff --git a/passbook/admin/views/stages.py b/passbook/admin/views/stages.py
index 103e34afc..03ee9f549 100644
--- a/passbook/admin/views/stages.py
+++ b/passbook/admin/views/stages.py
@@ -26,9 +26,7 @@ class StageListView(LoginRequiredMixin, PermissionListMixin, ListView):
     paginate_by = 40
 
     def get_context_data(self, **kwargs):
-        kwargs["types"] = {
-            x.__name__: x for x in all_subclasses(Stage)
-        }
+        kwargs["types"] = {x.__name__: x for x in all_subclasses(Stage)}
         return super().get_context_data(**kwargs)
 
     def get_queryset(self):
diff --git a/passbook/lib/templatetags/passbook_utils.py b/passbook/lib/templatetags/passbook_utils.py
index e11ed6ae0..2d5af96cb 100644
--- a/passbook/lib/templatetags/passbook_utils.py
+++ b/passbook/lib/templatetags/passbook_utils.py
@@ -101,6 +101,7 @@ def debug(obj) -> str:
     LOGGER.debug(obj)
     return ""
 
+
 @register.filter
 def doc(obj) -> str:
     """Return docstring of object"""
diff --git a/passbook/sources/oauth/migrations/0002_auto_20200520_1108.py b/passbook/sources/oauth/migrations/0002_auto_20200520_1108.py
index 9a5cce7d3..e1177614d 100644
--- a/passbook/sources/oauth/migrations/0002_auto_20200520_1108.py
+++ b/passbook/sources/oauth/migrations/0002_auto_20200520_1108.py
@@ -6,28 +6,45 @@ from django.db import migrations, models
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('passbook_sources_oauth', '0001_initial'),
+        ("passbook_sources_oauth", "0001_initial"),
     ]
 
     operations = [
         migrations.AlterField(
-            model_name='oauthsource',
-            name='access_token_url',
-            field=models.CharField(help_text='URL used by passbook to retrive tokens.', max_length=255, verbose_name='Access Token URL'),
+            model_name="oauthsource",
+            name="access_token_url",
+            field=models.CharField(
+                help_text="URL used by passbook to retrive tokens.",
+                max_length=255,
+                verbose_name="Access Token URL",
+            ),
         ),
         migrations.AlterField(
-            model_name='oauthsource',
-            name='request_token_url',
-            field=models.CharField(blank=True, help_text='URL used to request the initial token. This URL is only required for OAuth 1.', max_length=255, verbose_name='Request Token URL'),
+            model_name="oauthsource",
+            name="request_token_url",
+            field=models.CharField(
+                blank=True,
+                help_text="URL used to request the initial token. This URL is only required for OAuth 1.",
+                max_length=255,
+                verbose_name="Request Token URL",
+            ),
         ),
         migrations.AlterField(
-            model_name='oauthsource',
-            name='authorization_url',
-            field=models.CharField(help_text='URL the user is redirect to to conest the flow.', max_length=255, verbose_name='Authorization URL'),
+            model_name="oauthsource",
+            name="authorization_url",
+            field=models.CharField(
+                help_text="URL the user is redirect to to conest the flow.",
+                max_length=255,
+                verbose_name="Authorization URL",
+            ),
         ),
         migrations.AlterField(
-            model_name='oauthsource',
-            name='profile_url',
-            field=models.CharField(help_text='URL used by passbook to get user information.', max_length=255, verbose_name='Profile URL'),
+            model_name="oauthsource",
+            name="profile_url",
+            field=models.CharField(
+                help_text="URL used by passbook to get user information.",
+                max_length=255,
+                verbose_name="Profile URL",
+            ),
         ),
     ]
diff --git a/passbook/sources/oauth/models.py b/passbook/sources/oauth/models.py
index 9097121ed..43f2a6280 100644
--- a/passbook/sources/oauth/models.py
+++ b/passbook/sources/oauth/models.py
@@ -14,20 +14,28 @@ class OAuthSource(Source):
 
     provider_type = models.CharField(max_length=255)
     request_token_url = models.CharField(
-        blank=True, max_length=255, verbose_name=_("Request Token URL"),
-        help_text=_("URL used to request the initial token. This URL is only required for OAuth 1.")
+        blank=True,
+        max_length=255,
+        verbose_name=_("Request Token URL"),
+        help_text=_(
+            "URL used to request the initial token. This URL is only required for OAuth 1."
+        ),
     )
     authorization_url = models.CharField(
-        max_length=255, verbose_name=_("Authorization URL"),
-        help_text=_("URL the user is redirect to to conest the flow.")
+        max_length=255,
+        verbose_name=_("Authorization URL"),
+        help_text=_("URL the user is redirect to to conest the flow."),
     )
     access_token_url = models.CharField(
-        max_length=255, verbose_name=_("Access Token URL"),
-        help_text=_("URL used by passbook to retrive tokens.")
+        max_length=255,
+        verbose_name=_("Access Token URL"),
+        help_text=_("URL used by passbook to retrive tokens."),
     )
     profile_url = models.CharField(
-        max_length=255, verbose_name=_("Profile URL"),
-        help_text=_("URL used by passbook to get user information."))
+        max_length=255,
+        verbose_name=_("Profile URL"),
+        help_text=_("URL used by passbook to get user information."),
+    )
     consumer_key = models.TextField()
     consumer_secret = models.TextField()
 
@@ -145,6 +153,7 @@ class AzureADOAuthSource(OAuthSource):
         verbose_name = _("Azure AD OAuth Source")
         verbose_name_plural = _("Azure AD OAuth Sources")
 
+
 class OpenIDOAuthSource(OAuthSource):
     """Abstract subclass of OAuthSource to specify OpenID Form"""
 
diff --git a/swagger.yaml b/swagger.yaml
index ece4d2134..980ab4c24 100755
--- a/swagger.yaml
+++ b/swagger.yaml
@@ -5780,20 +5780,25 @@ definitions:
         minLength: 1
       request_token_url:
         title: Request Token URL
+        description: URL used to request the initial token. This URL is only required
+          for OAuth 1.
         type: string
         maxLength: 255
       authorization_url:
         title: Authorization URL
+        description: URL the user is redirect to to conest the flow.
         type: string
         maxLength: 255
         minLength: 1
       access_token_url:
         title: Access Token URL
+        description: URL used by passbook to retrive tokens.
         type: string
         maxLength: 255
         minLength: 1
       profile_url:
         title: Profile URL
+        description: URL used by passbook to get user information.
         type: string
         maxLength: 255
         minLength: 1