diff --git a/src/h3/_h3shape.py b/src/h3/_h3shape.py
index a42befef..78640e0f 100644
--- a/src/h3/_h3shape.py
+++ b/src/h3/_h3shape.py
@@ -1,9 +1,11 @@
 from abc import ABCMeta, abstractmethod
 
+
 class H3Shape(metaclass=ABCMeta):
     @property
     @abstractmethod
-    def __geo_interface__(self): ...
+    def __geo_interface__(self):
+        pass
 
 
 class H3Poly(H3Shape):
@@ -74,7 +76,7 @@ def __init__(self, *polys):
 
         for p in self.polys:
             if not isinstance(p, H3Poly):
-                raise ValueError('H3MultiPoly requires each input to be an H3Poly object, instead got: ' + str(p))
+                raise ValueError('H3MultiPoly requires each input to be an H3Poly object, instead got: ' + str(p)) # noqa
 
     def __repr__(self):
         return 'H3MultiPoly' + str(self.polys)
@@ -233,6 +235,7 @@ def geo_to_h3shape(geo):
 
     return mpoly
 
+
 def h3shape_to_geo(h3shape):
     """
     Translate from H3Shape to a __geo_interface__ dict.
diff --git a/src/h3/api/basic_int/__init__.py b/src/h3/api/basic_int/__init__.py
index 804252ca..21e848a7 100644
--- a/src/h3/api/basic_int/__init__.py
+++ b/src/h3/api/basic_int/__init__.py
@@ -1,2 +1,2 @@
 from ._public_api import *  # noqa
-from ..._h3shape import H3MultiPoly, H3Poly, H3Shape
+from ..._h3shape import H3MultiPoly, H3Poly, H3Shape # noqa
diff --git a/src/h3/api/basic_str/__init__.py b/src/h3/api/basic_str/__init__.py
index 804252ca..21e848a7 100644
--- a/src/h3/api/basic_str/__init__.py
+++ b/src/h3/api/basic_str/__init__.py
@@ -1,2 +1,2 @@
 from ._public_api import *  # noqa
-from ..._h3shape import H3MultiPoly, H3Poly, H3Shape
+from ..._h3shape import H3MultiPoly, H3Poly, H3Shape # noqa
diff --git a/src/h3/api/memview_int/__init__.py b/src/h3/api/memview_int/__init__.py
index 804252ca..21e848a7 100644
--- a/src/h3/api/memview_int/__init__.py
+++ b/src/h3/api/memview_int/__init__.py
@@ -1,2 +1,2 @@
 from ._public_api import *  # noqa
-from ..._h3shape import H3MultiPoly, H3Poly, H3Shape
+from ..._h3shape import H3MultiPoly, H3Poly, H3Shape # noqa
diff --git a/src/h3/api/numpy_int/__init__.py b/src/h3/api/numpy_int/__init__.py
index 804252ca..21e848a7 100644
--- a/src/h3/api/numpy_int/__init__.py
+++ b/src/h3/api/numpy_int/__init__.py
@@ -1,2 +1,2 @@
 from ._public_api import *  # noqa
-from ..._h3shape import H3MultiPoly, H3Poly, H3Shape
+from ..._h3shape import H3MultiPoly, H3Poly, H3Shape # noqa
diff --git a/tests/polyfill/test_h3.py b/tests/polyfill/test_h3.py
index 6ed1c571..6a405c38 100644
--- a/tests/polyfill/test_h3.py
+++ b/tests/polyfill/test_h3.py
@@ -308,6 +308,5 @@ def test_multipoly_checks():
     with pytest.raises(ValueError):
         h3.H3MultiPoly(1)
 
-
     with pytest.raises(ValueError):
-        h3.H3MultiPoly([[(1,2), (3,4)]])
+        h3.H3MultiPoly([[(1, 2), (3, 4)]])