diff --git a/pattern_library/loader_tags.py b/pattern_library/loader_tags.py
index 4cc6a9b..80dd111 100644
--- a/pattern_library/loader_tags.py
+++ b/pattern_library/loader_tags.py
@@ -151,9 +151,10 @@ def do_include(parser, token):
         isolated_context=isolated_context,
     )
 
+
 def visit_extends(self, node, frame):
     """This method overrides the jinja extends tag
-    Is called as part of the compiler CodeGenerator 
+    Is called as part of the compiler CodeGenerator
     and adds a line to use the template_new_context as
     part of the runtime render to pull in the dpl context
     Handles visiting extends
@@ -196,4 +197,4 @@ def template_new_context(
 
     return new_context(
         self.environment, self.name, self.blocks, vars, shared, self.globals, locals
-    )
\ No newline at end of file
+    )
diff --git a/pattern_library/monkey_utils.py b/pattern_library/monkey_utils.py
index c3f3bcb..2da37f4 100644
--- a/pattern_library/monkey_utils.py
+++ b/pattern_library/monkey_utils.py
@@ -118,14 +118,16 @@ def node_render(context):
 
     return tag_func
 
+
 # have to export the original jinja visit Extends
 # in the case jinja tags are being overriden
 jinja_visit_Extends = None
 
+
 def override_jinja_tags():
     """
     Overrides jinja extends and include tags for use in your pattern library.
-    Call it in your settings to override tags 
+    Call it in your settings to override tags
     """
     global jinja_visit_Extends
     try:
@@ -133,8 +135,9 @@ def override_jinja_tags():
         from jinja2.environment import Template as JinjaTemplate
     except ModuleNotFoundError:
         ModuleNotFoundError("install jinja2 to override jinja tags")
-    
+
     from .loader_tags import template_new_context, visit_extends
+
     jinja_visit_Extends = JinjaCodeGenerator.visit_Extends
     JinjaTemplate.new_context = template_new_context
-    JinjaCodeGenerator.visit_Extends = visit_extends
\ No newline at end of file
+    JinjaCodeGenerator.visit_Extends = visit_extends
diff --git a/pattern_library/utils.py b/pattern_library/utils.py
index 3edc5dd..1edf1f3 100644
--- a/pattern_library/utils.py
+++ b/pattern_library/utils.py
@@ -22,9 +22,9 @@
 from pattern_library.exceptions import TemplateIsNotPattern
 
 
-
 from django.utils.html import escape
 
+
 def path_to_section():
     section_config = get_sections()
     sections = {}
@@ -243,7 +243,9 @@ def get_pattern_source(cls, template):
     @classmethod
     def get_template_ancestors(cls, template_name, context=None):
         template = get_template(template_name)
-        return cls._get_engine(template).get_template_ancestors(template_name, context=context)
+        return cls._get_engine(template).get_template_ancestors(
+            template_name, context=context
+        )
 
     @classmethod
     def _get_engine(cls, template):
@@ -251,6 +253,7 @@ def _get_engine(cls, template):
             return JinjaTemplateRenderer
         return DTLTemplateRenderer
 
+
 class DTLTemplateRenderer:
     @staticmethod
     def get_pattern_source(template):
@@ -287,7 +290,7 @@ class JinjaTemplateRenderer:
     @staticmethod
     def get_pattern_source(template):
         with open(template.template.filename) as f:
-            source =  escape(f.read())
+            source = escape(f.read())
         return source
 
     @classmethod
@@ -306,12 +309,14 @@ def get_template_ancestors(cls, template_name, context=None, ancestors=None):
             context = Context()
 
         pattern_template = get_template(template_name)
-        #todo - make sure envrionment has context passed in
+        # todo - make sure envrionment has context passed in
         environment = pattern_template.template.environment
         nodelist = environment.parse(pattern_template.template.name)
         parent_template_name = nodelist.find(Extends)
         if parent_template_name:
             ancestors.append(parent_template_name)
-            cls.get_template_ancestors(parent_template_name, context=context, ancestors=ancestors)
+            cls.get_template_ancestors(
+                parent_template_name, context=context, ancestors=ancestors
+            )
 
         return ancestors
diff --git a/tests/tests/test_context_modifiers.py b/tests/tests/test_context_modifiers.py
index 12ddd9f..1fcb745 100644
--- a/tests/tests/test_context_modifiers.py
+++ b/tests/tests/test_context_modifiers.py
@@ -33,7 +33,6 @@ def modifier_3(context, request):
 
 
 class ContextModifierTestCase(SimpleTestCase):
-
     maxDiff = None
 
     def setUp(self):
diff --git a/tests/tests/test_utils.py b/tests/tests/test_utils.py
index 7c05163..682f9ae 100644
--- a/tests/tests/test_utils.py
+++ b/tests/tests/test_utils.py
@@ -13,9 +13,12 @@
 class TestGetTemplateAncestors(SimpleTestCase):
     def setUp(self):
         self.renderer = get_renderer()
+
     def test_page(self):
         self.assertEqual(
-            self.renderer.get_template_ancestors("patterns/pages/test_page/test_page.html"),
+            self.renderer.get_template_ancestors(
+                "patterns/pages/test_page/test_page.html"
+            ),
             [
                 "patterns/pages/test_page/test_page.html",
                 "patterns/base_page.html",
@@ -25,7 +28,9 @@ def test_page(self):
 
     def test_fragment(self):
         self.assertEqual(
-            self.renderer.get_template_ancestors("patterns/atoms/test_atom/test_atom.html"),
+            self.renderer.get_template_ancestors(
+                "patterns/atoms/test_atom/test_atom.html"
+            ),
             [
                 "patterns/atoms/test_atom/test_atom.html",
             ],