diff --git a/docs/source/conf.py b/docs/source/conf.py
index 1be49fc..6a71312 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -34,7 +34,6 @@
     "sphinx.ext.todo",
     "sphinx.ext.viewcode",
     "autodoc2",
-    "sphinx.ext.autodoc",
     "sphinx.ext.napoleon",
     "sphinxcontrib_django",
 ]
diff --git a/signoffs/core/approvals.py b/signoffs/core/approvals.py
index 1151245..bea5249 100644
--- a/signoffs/core/approvals.py
+++ b/signoffs/core/approvals.py
@@ -177,7 +177,7 @@ def can_revoke_signoff(self, approval, signoff):
 
 
 class ApprovalLogic(DefaultApprovalBusinessLogic):
-    """ Public API: Alias for `DefaultApprovalBusinessLogic """
+    """Public API: Alias for `DefaultApprovalBusinessLogic"""
 
 
 class AbstractApproval:
@@ -501,6 +501,10 @@ class BaseApproval(AbstractApproval):
     stampModel = None
 
 
-__all__ =[
-    'revoke_approval', 'AbstractApproval', 'BaseApproval', 'DefaultApprovalBusinessLogic', 'ApprovalLogic'
-]
\ No newline at end of file
+__all__ = [
+    "revoke_approval",
+    "AbstractApproval",
+    "BaseApproval",
+    "DefaultApprovalBusinessLogic",
+    "ApprovalLogic",
+]
diff --git a/signoffs/core/forms.py b/signoffs/core/forms.py
index 77e67bb..4cfca5d 100644
--- a/signoffs/core/forms.py
+++ b/signoffs/core/forms.py
@@ -259,10 +259,11 @@ class SignoffFormsManager(class_service(service_class=SignoffTypeForms)):
       - OR both... `MySignoffFormsManager = utils.service(MyInstanceForms)`
     """
 
+
 __all__ = [
     "AbstractSignoffForm",
     "signoff_form_factory",
     "AbstractSignoffRevokeForm",
     "revoke_form_factory",
-    "SignoffFormsManager"
+    "SignoffFormsManager",
 ]
diff --git a/signoffs/core/process.py b/signoffs/core/process.py
index f0ba97f..a8b87bb 100644
--- a/signoffs/core/process.py
+++ b/signoffs/core/process.py
@@ -820,4 +820,4 @@ def has_revoke_perm(instance, user):
     "ApprovalsProcess",
     "FsmApprovalsProcess",
     "user_can_revoke_approval",
-]
\ No newline at end of file
+]
diff --git a/signoffs/core/renderers/approvals.py b/signoffs/core/renderers/approvals.py
index b0b8b4b..931c963 100644
--- a/signoffs/core/renderers/approvals.py
+++ b/signoffs/core/renderers/approvals.py
@@ -86,12 +86,6 @@ def resolve_approval_context(self, context, **kwargs):
         return approval_context
 
 
-"""
-A descriptor class that "injects" a ApprovalInstanceRenderer instance into a Approval instance.
-To inject custom rendering services:
-  - instantiate the descriptor with a custom service_class:  ApprovalRenderer(service_class=MyInstanceRenderer);
-  - OR use utils.service to define a new renderer service descriptor class
-"""
 class ApprovalRenderer(utils.service(ApprovalInstanceRenderer)):
     """
     A descriptor class that "injects" a `ApprovalInstanceRenderer` instance into a Approval instance.
diff --git a/signoffs/core/signing_order/__init__.py b/signoffs/core/signing_order/__init__.py
index 5119c18..3c5f667 100644
--- a/signoffs/core/signing_order/__init__.py
+++ b/signoffs/core/signing_order/__init__.py
@@ -1,4 +1,8 @@
-from .signing_order import SigningOrder, SigningOrderStrategyProtocol, SigningOrderPatternMatcher
+from .signing_order import (
+    SigningOrder,
+    SigningOrderPatternMatcher,
+    SigningOrderStrategyProtocol,
+)
 from .signoff_pattern import (
     AnyOneOf,
     AtLeastN,
diff --git a/signoffs/core/signing_order/signing_order.py b/signoffs/core/signing_order/signing_order.py
index 88e44d7..304b67f 100644
--- a/signoffs/core/signing_order/signing_order.py
+++ b/signoffs/core/signing_order/signing_order.py
@@ -116,5 +116,7 @@ def __get__(self, instance, owner=None):
 
 
 __all__ = [
-    "SigningOrder", "SigningOrderStrategyProtocol", "SigningOrderPatternMatcher",
-]
\ No newline at end of file
+    "SigningOrder",
+    "SigningOrderStrategyProtocol",
+    "SigningOrderPatternMatcher",
+]
diff --git a/signoffs/core/signing_order/signoff_pattern.py b/signoffs/core/signing_order/signoff_pattern.py
index 6aec044..a7c914b 100644
--- a/signoffs/core/signing_order/signoff_pattern.py
+++ b/signoffs/core/signing_order/signoff_pattern.py
@@ -209,4 +209,4 @@ class InParallel(PatternSet):
     "InSeries",
     "OneOrMore",
     "Optional",
-]
\ No newline at end of file
+]
diff --git a/signoffs/core/signoffs.py b/signoffs/core/signoffs.py
index 8f1d59a..63eac4b 100644
--- a/signoffs/core/signoffs.py
+++ b/signoffs/core/signoffs.py
@@ -161,7 +161,7 @@ def revoke(self, signoff, user, reason="", **kwargs):
 
 
 class SignoffLogic(DefaultSignoffBusinessLogic):
-    """ Public API: Alias for `DefaultSignoffBusinessLogic """
+    """Public API: Alias for `DefaultSignoffBusinessLogic"""
 
 
 class AbstractSignoff:
@@ -480,6 +480,11 @@ class BaseSignoff(AbstractSignoff):
     label = "I consent"
 
 
-__all__ =[
-    'sign_signoff', 'revoke_signoff', 'AbstractSignoff', 'BaseSignoff', 'DefaultSignoffBusinessLogic', 'SignoffLogic'
-]
\ No newline at end of file
+__all__ = [
+    "sign_signoff",
+    "revoke_signoff",
+    "AbstractSignoff",
+    "BaseSignoff",
+    "DefaultSignoffBusinessLogic",
+    "SignoffLogic",
+]
diff --git a/signoffs/core/urls/__init__.py b/signoffs/core/urls/__init__.py
index 226b087..e4d00eb 100644
--- a/signoffs/core/urls/__init__.py
+++ b/signoffs/core/urls/__init__.py
@@ -1,8 +1,2 @@
-from .signoffs import (
-    SignoffInstanceUrls,
-    SignoffUrlsManager,
-)
-from .approvals import (
-    ApprovalInstanceUrls,
-    ApprovalUrlsManager,
-)
+from .approvals import ApprovalInstanceUrls, ApprovalUrlsManager
+from .signoffs import SignoffInstanceUrls, SignoffUrlsManager
diff --git a/signoffs/core/urls/approvals.py b/signoffs/core/urls/approvals.py
index e0eda41..6cb522c 100644
--- a/signoffs/core/urls/approvals.py
+++ b/signoffs/core/urls/approvals.py
@@ -36,7 +36,6 @@ def get_revoke_url(self, args=None, kwargs=None):
         )
 
 
-
 class ApprovalUrlsManager(service(ApprovalInstanceUrls)):
     """
     A descriptor class that "injects" a ApprovalInstanceUrls instance into a Approval instance.
diff --git a/signoffs/core/utils.py b/signoffs/core/utils.py
index 4fd9f2d..3e77b56 100644
--- a/signoffs/core/utils.py
+++ b/signoffs/core/utils.py
@@ -267,4 +267,4 @@ def class_service(service_class, **kwargs):
     "ServiceDescriptor",
     "class_service",
     "ClassServiceDescriptor",
-]
\ No newline at end of file
+]
diff --git a/signoffs/registry.py b/signoffs/registry.py
index a11a6e1..81e1c1f 100644
--- a/signoffs/registry.py
+++ b/signoffs/registry.py
@@ -47,6 +47,7 @@ def object_type(self):
 signoffs = SignoffTypes()
 """Singleton - the Signoff Types registry. `(see persisting_theory.Registry)`"""
 
+
 def get_signoff_type(signoff_id_or_type):
     """
     Return a registered Signoff Type or raise ImproperlyConfigured if no such type was registered.
@@ -132,6 +133,4 @@ def decorator(cls):
     return decorator
 
 
-__all__ = [
-    "signoffs", "approvals", "register"
-]
\ No newline at end of file
+__all__ = ["signoffs", "approvals", "register"]
diff --git a/signoffs/signing_order.py b/signoffs/signing_order.py
index bf169f5..5431e7d 100644
--- a/signoffs/signing_order.py
+++ b/signoffs/signing_order.py
@@ -4,7 +4,8 @@
     isort:skip_file
 """
 from signoffs.core.signing_order.signing_order import (
-    SigningOrderStrategyProtocol, SigningOrder
+    SigningOrderStrategyProtocol,
+    SigningOrder,
 )
 from signoffs.core.signing_order.signoff_pattern import (
     AnyOneOf,
diff --git a/tasks/deps.py b/tasks/deps.py
index c8bd909..eafc8a9 100644
--- a/tasks/deps.py
+++ b/tasks/deps.py
@@ -12,7 +12,7 @@ def compile(c, upgrade=False, extras=(), output_file="requirements.txt", options
 @task
 def compile_dev(c, upgrade=False, extras=(), output_file="requirements_dev.txt", options=''):
     """ pip-compile Dev requirements """
-    compile(c, upgrade=upgrade, extras=extras, output_file=output_file, options='--all-extras '+options)
+    compile(c, upgrade=upgrade, extras=extras, output_file=output_file, options='--all-extras ' + options)
 
 
 @task
diff --git a/tests/test_app/models.py b/tests/test_app/models.py
index be9ae47..68590ad 100644
--- a/tests/test_app/models.py
+++ b/tests/test_app/models.py
@@ -5,7 +5,6 @@
 from django.db import models
 from django_fsm import FSMField, transition
 
-from signoffs.process import FsmApprovalsProcess, user_can_revoke_approval
 from signoffs.approvals import ApprovalSignoff, SimpleApproval
 from signoffs.approvals import signing_order as so
 from signoffs.models import (
@@ -17,6 +16,7 @@
     SignoffSet,
     Stamp,
 )
+from signoffs.process import FsmApprovalsProcess, user_can_revoke_approval
 from signoffs.registry import register
 from signoffs.signoffs import SignoffRenderer, SimpleSignoff
 
diff --git a/tox.ini b/tox.ini
index b4ac18b..8ac2015 100644
--- a/tox.ini
+++ b/tox.ini
@@ -74,5 +74,6 @@ per-file-ignores =
     signoffs/forms.py: F401
     signoffs/models.py: F401
     signoffs/process.py: F401
+    signoffs/signing_order.py: F401
     signoffs/signoffs.py: F401
     signoffs/core/utils.py: C901