flake8

src/aws_encryption_sdk/cmm_handler.py

@@ -63,6 +63,11 @@ def __init__(
         self,
         cmm: 'CryptoMaterialsManager | ICryptographicMaterialsManager'
     ):
+        """
+        Create DecryptionMaterialsHandler.
+        :param cmm: Underlying cryptographic materials manager
+        """
+
         if isinstance(cmm, CryptoMaterialsManager):
             self.native_cmm = cmm
         elif isinstance(cmm, ICryptographicMaterialsManager):
@@ -78,7 +83,6 @@ def get_encryption_materials(
         Returns an EncryptionMaterialsHandler for the configured CMM.
         :param request: Request for encryption materials
         """
-
         if (self._is_using_native_cmm()):
             return EncryptionMaterialsHandler(self.native_cmm.get_encryption_materials(request))
         else:
@@ -130,7 +134,6 @@ def decrypt_materials(
         Returns a DecryptionMaterialsHandler for the configured CMM.
         :param request: Request for decryption materials
         """
-
         if (self._is_using_native_cmm()):
             return DecryptionMaterialsHandler(self.native_cmm.decrypt_materials(request))
         else:

src/aws_encryption_sdk/materials_handlers.py

@@ -48,7 +48,6 @@ def __init__(
         Create EncryptionMaterialsHandler.
         :param materials: Underlying encryption materials
         """
-
         if isinstance(materials, Native_EncryptionMaterials):
             self.native_materials = materials
         elif isinstance(materials, MPL_EncryptionMaterials):
@@ -58,10 +57,7 @@ def __init__(
 
     @property
     def algorithm(self) -> Algorithm:
-        """
-        Materials' native Algorithm.
-        """
-
+        """Materials' native Algorithm."""
         if hasattr(self, "native_materials"):
             return self.native_materials.algorithm
         else:
@@ -73,21 +69,15 @@ def algorithm(self) -> Algorithm:
 
     @property
     def encryption_context(self) -> dict[str, str]:
-        """
-        Materials' encryption context.
-        """
-
+        """Materials' encryption context."""
         if hasattr(self, "native_materials"):
             return self.native_materials.encryption_context
         else:
             return self.mpl_materials.encryption_context
 
     @property
     def encrypted_data_keys(self) -> list[Native_EncryptedDataKey]:
-        """
-        Materials' encrypted data keys.
-        """
-
+        """Materials' encrypted data keys."""
         if hasattr(self, "native_materials"):
             return self.native_materials.encrypted_data_keys
         else:
@@ -103,10 +93,7 @@ def encrypted_data_keys(self) -> list[Native_EncryptedDataKey]:
 
     @property
     def data_encryption_key(self) -> DataKey:
-        """
-        Materials' data encryption key.
-        """
-
+        """Materials' data encryption key."""
         if hasattr(self, "native_materials"):
             return self.native_materials.data_encryption_key
         else:
@@ -126,10 +113,7 @@ def data_encryption_key(self) -> DataKey:
 
     @property
     def signing_key(self) -> bytes:
-        """
-        Materials' signing key.
-        """
-
+        """Materials' signing key."""
         if hasattr(self, "native_materials"):
             return self.native_materials.signing_key
         else:
@@ -155,7 +139,6 @@ def __init__(
         Create DecryptionMaterialsHandler.
         :param materials: Underlying decryption materials
         """
-
         if isinstance(materials, Native_DecryptionMaterials):
             self.native_materials = materials
         elif isinstance(materials, MPL_DecryptionMaterials):
@@ -165,10 +148,7 @@ def __init__(
 
     @property
     def data_key(self) -> DataKey:
-        """
-        Materials' data key.
-        """
-
+        """Materials' data key."""
         if hasattr(self, "native_materials"):
             return self.native_materials.data_key
         else:
@@ -186,10 +166,7 @@ def data_key(self) -> DataKey:
 
     @property
     def verification_key(self) -> bytes:
-        """
-        Materials' verification key.
-        """
-
+        """Materials' verification key."""
         if hasattr(self, "native_materials"):
             return self.native_materials.verification_key
         else:

src/aws_encryption_sdk/streaming_client.py

@@ -85,11 +85,11 @@
 
 
 def _exactly_one_arg_is_not_None(*args):
-    '''
+    """
     Private helper function.
     Returns `True` if exactly one item in the list is not `None`.
     Returns `False` otherwise.
-    '''
+    """
     # Have not found any `not None`
     found_one = False
     for arg in args: