diff --git a/src/cryptojwt/__init__.py b/src/cryptojwt/__init__.py
index 864b191c..80291524 100644
--- a/src/cryptojwt/__init__.py
+++ b/src/cryptojwt/__init__.py
@@ -283,4 +283,3 @@ def payload(self):
                 pass
 
         return _msg
-
diff --git a/src/cryptojwt/jwe.py b/src/cryptojwt/jwe.py
index c7f9624f..39524ae9 100644
--- a/src/cryptojwt/jwe.py
+++ b/src/cryptojwt/jwe.py
@@ -709,9 +709,9 @@ def ecdh_derive_key(key, epk, apu, apv, alg, dk_len):
     # Derive the key
     # AlgorithmID || PartyUInfo || PartyVInfo || SuppPubInfo
     otherInfo = bytes(alg) + \
-                struct.pack("!I", len(apu)) + apu + \
-                struct.pack("!I", len(apv)) + apv + \
-                struct.pack("!I", dk_len)
+        struct.pack("!I", len(apu)) + apu + \
+        struct.pack("!I", len(apv)) + apv + \
+        struct.pack("!I", dk_len)
     return concat_sha256(shared_key, dk_len, otherInfo)
 
 
diff --git a/src/cryptojwt/jwk.py b/src/cryptojwt/jwk.py
index 68499b5d..a1dd8c21 100644
--- a/src/cryptojwt/jwk.py
+++ b/src/cryptojwt/jwk.py
@@ -66,21 +66,20 @@ def sha512_digest(msg):
 
 def generate_and_store_rsa_key(key_size=2048, filename='rsa.key',
                                passphrase=''):
-    private_key = rsa.generate_private_key(public_exponent = 65537,
-                                           key_size = key_size,
-                                           backend = default_backend())
+    private_key = rsa.generate_private_key(public_exponent=65537,
+                                           key_size=key_size,
+                                           backend=default_backend())
 
     with open(filename, "wb") as keyfile:
         if passphrase:
             pem = private_key.private_bytes(
-                encoding = serialization.Encoding.PEM,
-                format = serialization.PrivateFormat.PKCS8,
-                encryption_algorithm = serialization.BestAvailableEncryption(
-                    passphrase))
+                encoding=serialization.Encoding.PEM,
+                format=serialization.PrivateFormat.PKCS8,
+                encryption_algorithm=serialization.BestAvailableEncryption(passphrase))
         else:
             pem = private_key.private_bytes(
-                encoding = serialization.Encoding.PEM,
-                format = serialization.PrivateFormat.PKCS8,
+                encoding=serialization.Encoding.PEM,
+                format=serialization.PrivateFormat.PKCS8,
                 encryption_algorithm=serialization.NoEncryption())
         keyfile.write(pem)
         keyfile.close()
@@ -968,7 +967,7 @@ def __eq__(self, other):
             if isinstance(other.key, ec.EllipticCurvePublicKey):
                 if self.key.curve != other.key.curve:
                     return False
-                if self.key.key_size != other.key.key_size :
+                if self.key.key_size != other.key.key_size:
                     return False
                 if self.key.public_numbers() != other.key.public_numbers():
                     return False
@@ -978,7 +977,7 @@ def __eq__(self, other):
             if isinstance(other.key, ec.EllipticCurvePrivateKey):
                 if self.key.curve != other.key.curve:
                     return False
-                if self.key.key_size != other.key.key_size :
+                if self.key.key_size != other.key.key_size:
                     return False
                 if self.key.private_numbers() != other.key.private_numbers():
                     return False
diff --git a/src/cryptojwt/jws.py b/src/cryptojwt/jws.py
index 11ad5c92..866c6393 100644
--- a/src/cryptojwt/jws.py
+++ b/src/cryptojwt/jws.py
@@ -743,9 +743,7 @@ def is_jws(self, jws):
     def _is_json_serialized_jws(self, json_jws):
         json_ser_keys = {"payload", "signatures"}
         flattened_json_ser_keys = {"payload", "signature"}
-        if not json_ser_keys.issubset(
-                json_jws.keys()) and not flattened_json_ser_keys.issubset(
-            json_jws.keys()):
+        if not json_ser_keys.issubset(json_jws.keys()) and not flattened_json_ser_keys.issubset(json_jws.keys()):
             return False
         return True
 
diff --git a/src/cryptojwt/jwt.py b/src/cryptojwt/jwt.py
index 04c7dafb..1366985c 100755
--- a/src/cryptojwt/jwt.py
+++ b/src/cryptojwt/jwt.py
@@ -221,10 +221,10 @@ def _verify(self, rj, token):
     def _decrypt(self, rj, token):
         """
         Decrypt an encrypted JsonWebToken
-        
-        :param rj: :py:class:`jwkest.jwe.JWE` instance 
+
+        :param rj: :py:class:`jwkest.jwe.JWE` instance
         :param token: The encrypted JsonWebToken
-        :return: 
+        :return:
         """
         keys = get_jwt_keys(rj.jwt, self.my_keys(), 'enc')
         return rj.decrypt(token, keys=keys)