diff --git a/keystoneauth1/adapter.py b/keystoneauth1/adapter.py
index 034a7a5c..b2d92fb4 100644
--- a/keystoneauth1/adapter.py
+++ b/keystoneauth1/adapter.py
@@ -195,7 +195,6 @@ class Adapter(object):
         :type parser: argparse.ArgumentParser
         :param str service_type: Default service_type value. (optional)
         """
-
         adapter_group = parser.add_argument_group(
             'Service Options',
             'Options controlling the specialization of the API'
diff --git a/keystoneauth1/discover.py b/keystoneauth1/discover.py
index 63900bb8..b60a198f 100644
--- a/keystoneauth1/discover.py
+++ b/keystoneauth1/discover.py
@@ -72,7 +72,6 @@ def get_version_data(session, url, authenticated=None):
 
 def normalize_version_number(version):
     """Turn a version representation into a tuple."""
-
     # trim the v from a 'v2.0' or similar
     try:
         version = version.lstrip('v')
diff --git a/keystoneauth1/extras/_saml2/v3/adfs.py b/keystoneauth1/extras/_saml2/v3/adfs.py
index df792aa8..ab2b9166 100644
--- a/keystoneauth1/extras/_saml2/v3/adfs.py
+++ b/keystoneauth1/extras/_saml2/v3/adfs.py
@@ -73,7 +73,6 @@ class Password(base.BaseSAMLPlugin):
         :type password: string
 
         """
-
         super(Password, self).__init__(
             auth_url=auth_url, identity_provider=identity_provider,
             identity_provider_url=identity_provider_url,
@@ -117,7 +116,6 @@ class Password(base.BaseSAMLPlugin):
         :type fmt: string
 
         """
-
         date_created = datetime.datetime.utcnow()
         date_expires = date_created + datetime.timedelta(
             seconds=self.DEFAULT_ADFS_TOKEN_EXPIRATION)
@@ -129,7 +127,6 @@ class Password(base.BaseSAMLPlugin):
         Some values like username or password are inserted in the request.
 
         """
-
         WSS_SECURITY_NAMESPACE = {
             'o': ('http://docs.oasis-open.org/wss/2004/01/oasis-200401-'
                   'wss-wssecurity-secext-1.0.xsd')
diff --git a/keystoneauth1/extras/_saml2/v3/saml2.py b/keystoneauth1/extras/_saml2/v3/saml2.py
index 543ecb49..8902a299 100644
--- a/keystoneauth1/extras/_saml2/v3/saml2.py
+++ b/keystoneauth1/extras/_saml2/v3/saml2.py
@@ -199,7 +199,6 @@ class Password(base.BaseSAMLPlugin):
 
     def _send_idp_saml2_authn_request(self, session):
         """Present modified SAML2 authn assertion from the Service Provider."""
-
         self._prepare_idp_saml2_request(self.saml2_authn_request)
         idp_saml2_authn_request = self.saml2_authn_request
 
diff --git a/keystoneauth1/identity/v3/k2k.py b/keystoneauth1/identity/v3/k2k.py
index 5e34f78f..655bb63b 100644
--- a/keystoneauth1/identity/v3/k2k.py
+++ b/keystoneauth1/identity/v3/k2k.py
@@ -140,7 +140,6 @@ class Keystone2Keystone(federation._Rescoped):
         :type sp_auth_url: str
 
         """
-
         response = session.post(
             sp_url,
             headers={'Content-Type': 'application/vnd.paos+xml'},
diff --git a/keystoneauth1/identity/v3/oidc.py b/keystoneauth1/identity/v3/oidc.py
index 349d6658..49bbe504 100644
--- a/keystoneauth1/identity/v3/oidc.py
+++ b/keystoneauth1/identity/v3/oidc.py
@@ -183,7 +183,6 @@ class OidcPassword(_OidcBase):
         :returns: a token data representation
         :rtype: :py:class:`keystoneauth1.access.AccessInfoV3`
         """
-
         # get an access token
         client_auth = (self.client_id, self.client_secret)
         payload = {'grant_type': self.grant_type, 'username': self.username,
@@ -250,7 +249,6 @@ class OidcAuthorizationCode(_OidcBase):
         :returns: a token data representation
         :rtype: :py:class:`keystoneauth1.access.AccessInfoV3`
         """
-
         # get an access token
         client_auth = (self.client_id, self.client_secret)
         payload = {'grant_type': self.grant_type,
diff --git a/keystoneauth1/session.py b/keystoneauth1/session.py
index fc1f71e2..40974d90 100644
--- a/keystoneauth1/session.py
+++ b/keystoneauth1/session.py
@@ -362,7 +362,6 @@ class Session(object):
 
         :returns: The response to the request.
         """
-
         headers = kwargs.setdefault('headers', dict())
 
         if authenticated is None:
diff --git a/keystoneauth1/tests/unit/extras/saml2/test_auth_adfs.py b/keystoneauth1/tests/unit/extras/saml2/test_auth_adfs.py
index bb820ddf..bb1a90ec 100644
--- a/keystoneauth1/tests/unit/extras/saml2/test_auth_adfs.py
+++ b/keystoneauth1/tests/unit/extras/saml2/test_auth_adfs.py
@@ -82,7 +82,6 @@ class AuthenticateviaADFSTests(utils.TestCase):
 
     def test_get_adfs_security_token(self):
         """Test ADFSPassword._get_adfs_security_token()."""
-
         self.requests_mock.post(
             self.IDENTITY_PROVIDER_URL,
             content=utils.make_oneline(self.ADFS_SECURITY_TOKEN_RESPONSE),
diff --git a/keystoneauth1/tests/unit/identity/test_identity_v3_oidc.py b/keystoneauth1/tests/unit/identity/test_identity_v3_oidc.py
index cab7fbf2..9f84dc59 100644
--- a/keystoneauth1/tests/unit/identity/test_identity_v3_oidc.py
+++ b/keystoneauth1/tests/unit/identity/test_identity_v3_oidc.py
@@ -68,7 +68,6 @@ class OIDCPasswordTests(AuthenticateOIDCTests):
 
     def test_initial_call_to_get_access_token(self):
         """Test initial call, expect JSON access token."""
-
         # Mock the output that creates the access token
         self.requests_mock.post(
             self.ACCESS_TOKEN_ENDPOINT,
@@ -93,7 +92,6 @@ class OIDCPasswordTests(AuthenticateOIDCTests):
 
     def test_second_call_to_protected_url(self):
         """Test subsequent call, expect Keystone token."""
-
         # Mock the output that creates the keystone token
         self.requests_mock.post(
             self.FEDERATION_AUTH_URL,
@@ -115,7 +113,6 @@ class OIDCPasswordTests(AuthenticateOIDCTests):
 
     def test_end_to_end_workflow(self):
         """Test full OpenID Connect workflow."""
-
         # Mock the output that creates the access token
         self.requests_mock.post(
             self.ACCESS_TOKEN_ENDPOINT,
@@ -135,7 +132,6 @@ class OIDCAuthorizationGrantTests(AuthenticateOIDCTests):
 
     def test_initial_call_to_get_access_token(self):
         """Test initial call, expect JSON access token."""
-
         # Mock the output that creates the access token
         self.requests_mock.post(
             self.ACCESS_TOKEN_ENDPOINT,
diff --git a/keystoneauth1/tests/unit/matchers.py b/keystoneauth1/tests/unit/matchers.py
index 6076f348..01c98779 100644
--- a/keystoneauth1/tests/unit/matchers.py
+++ b/keystoneauth1/tests/unit/matchers.py
@@ -41,7 +41,6 @@ class XMLEquals(object):
             different children.
 
             """
-
             if expected_doc.tag != observed_doc.tag:
                 return False
 
diff --git a/keystoneauth1/tests/unit/test_session.py b/keystoneauth1/tests/unit/test_session.py
index 508c56a3..67be1358 100644
--- a/keystoneauth1/tests/unit/test_session.py
+++ b/keystoneauth1/tests/unit/test_session.py
@@ -176,7 +176,6 @@ class SessionTests(utils.TestCase):
 
     def test_logs_failed_output(self):
         """Test that output is logged even for failed requests"""
-
         session = client_session.Session()
         body = uuid.uuid4().hex
 
diff --git a/tox.ini b/tox.ini
index 0b8a2c79..de6b74a3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -37,7 +37,6 @@ commands = oslo_debug_helper -t keystoneauth1/tests {posargs}
 # D104: Missing docstring in public package
 # D105: Missing docstring in magic method
 # D200: One-line docstring should fit on one line with quotes
-# D202: No blank lines allowed after function docstring
 # D203: 1 blank required before class docstring.
 # D204: 1 blank required after class docstring
 # D205: Blank line required between one-line summary and description.
@@ -46,7 +45,7 @@ commands = oslo_debug_helper -t keystoneauth1/tests {posargs}
 # D301: Use r”“” if any backslashes in a docstring
 # D400: First line should end with a period.
 # D401: First line should be in imperative mood.
-ignore = H405,D100,D101,D102,D103,D104,D105,D200,D202,D203,D204,D205,D208,D211,D301,D400,D401
+ignore = H405,D100,D101,D102,D103,D104,D105,D200,D203,D204,D205,D208,D211,D301,D400,D401
 show-source = True
 exclude = .venv,.tox,dist,doc,*egg,build,*openstack/common*