diff --git a/autoapi/directives.py b/autoapi/directives.py
index cc62a69..b8411d2 100644
--- a/autoapi/directives.py
+++ b/autoapi/directives.py
@@ -53,7 +53,9 @@ class AutoapiSummary(Directive):  # pylint: disable=too-few-public-methods
                 docname = posixpath.join(tree_prefix, obj.name)
                 docname = posixpath.normpath(posixpath.join(dirname, docname))
                 if docname not in env.found_docs:
-                    self.reporter.warning("toctree references unknown document {}".format(docname))
+                    self.reporter.warning(
+                        "toctree references unknown document {}".format(docname)
+                    )
                 docnames.append(docname)
 
             tocnode = addnodes.toctree()
diff --git a/autoapi/documenters.py b/autoapi/documenters.py
index 0cb7f10..8d7b69c 100644
--- a/autoapi/documenters.py
+++ b/autoapi/documenters.py
@@ -14,6 +14,7 @@ from .mappers.python import (
 
 # pylint: disable=attribute-defined-outside-init,no-self-use,unused-argument
 
+
 class AutoapiDocumenter(autodoc.Documenter):
     def get_attr(self, obj, name, *defargs):
         if hasattr(self.env.app, "registry") and hasattr(
diff --git a/autoapi/extension.py b/autoapi/extension.py
index d87fc0c..032a929 100644
--- a/autoapi/extension.py
+++ b/autoapi/extension.py
@@ -46,8 +46,7 @@ def run_autoapi(app):  # pylint: disable=too-many-branches
             "Invalid autoapi_type setting, "
             "following values is allowed: {}".format(
                 ", ".join(
-                    '"{}"'.format(api_type)
-                    for api_type in sorted(LANGUAGE_MAPPERS)
+                    '"{}"'.format(api_type) for api_type in sorted(LANGUAGE_MAPPERS)
                 )
             )
         )
diff --git a/autoapi/mappers/dotnet.py b/autoapi/mappers/dotnet.py
index c9ce388..4609798 100644
--- a/autoapi/mappers/dotnet.py
+++ b/autoapi/mappers/dotnet.py
@@ -172,12 +172,7 @@ class DotNetSphinxMapper(SphinxMapperBase):
         except KeyError:
             LOGGER.warning("Unknown type: %s" % data)
         else:
-            obj = cls(
-                data,
-                jinja_env=self.jinja_env,
-                options=options,
-                **kwargs
-            )
+            obj = cls(data, jinja_env=self.jinja_env, options=options, **kwargs)
             obj.url_root = self.url_root
 
             # Append child objects
diff --git a/autoapi/mappers/javascript.py b/autoapi/mappers/javascript.py
index 0ecbf5b..368c0e4 100644
--- a/autoapi/mappers/javascript.py
+++ b/autoapi/mappers/javascript.py
@@ -109,7 +109,6 @@ class JavaScriptPythonMapper(PythonMapperBase):
         )
 
 
-
 class JavaScriptClass(JavaScriptPythonMapper):
     type = "class"
     ref_directive = "class"
diff --git a/autoapi/mappers/python/parser.py b/autoapi/mappers/python/parser.py
index 8564c08..3487a49 100644
--- a/autoapi/mappers/python/parser.py
+++ b/autoapi/mappers/python/parser.py
@@ -17,7 +17,9 @@ class Parser(object):
     def _decode(self, to_decode):
         if sys.version_info < (3,) and self._encoding:
             try:
-                return unicode(to_decode, self._encoding)  # pylint: disable=undefined-variable
+                return unicode(
+                    to_decode, self._encoding
+                )  # pylint: disable=undefined-variable
             except TypeError:
                 # The string was already in the correct format
                 pass
diff --git a/tests/test_objects.py b/tests/test_objects.py
index 5ce0716..cecc02a 100644
--- a/tests/test_objects.py
+++ b/tests/test_objects.py
@@ -92,7 +92,9 @@ class DotNetObjectTests(unittest.TestCase):
 
     def test_class_namespace(self):
         """Class parent resolution"""
-        cls = dotnet.DotNetClass(dict(id="Foo.Bar.Widget", type="class"), jinja_env=None)
+        cls = dotnet.DotNetClass(
+            dict(id="Foo.Bar.Widget", type="class"), jinja_env=None
+        )
         self.assertEqual(cls.namespace, "Foo.Bar")
         cls = dotnet.DotNetClass(dict(id="Foo.Bar", type="class"), jinja_env=None)
         self.assertEqual(cls.namespace, "Foo")