fix flake8, pylint

Author: RitvikKapila

examples/test/legacy/v3_default_cmm.py

@@ -40,7 +40,7 @@ class V3DefaultCryptoMaterialsManager(CryptoMaterialsManager):
 
     master_key_provider = attr.ib(validator=attr.validators.instance_of(MasterKeyProvider))
 
-    def _generate_signing_key_and_update_encryption_context(self, algorithm, encryption_context):
+    def _generate_signing_key_and_update_encryption_context(self, algorithm, encryption_context):  # pylint: disable=no-self-use
         """Generates a signing key based on the provided algorithm.
 
         :param algorithm: Algorithm for which to generate signing key
@@ -111,7 +111,7 @@ def get_encryption_materials(self, request):
             signing_key=signing_key,
         )
 
-    def _load_verification_key_from_encryption_context(self, algorithm, encryption_context):
+    def _load_verification_key_from_encryption_context(self, algorithm, encryption_context):  # pylint: disable=no-self-use
         """Loads the verification key from the encryption context if used by algorithm suite.
 
         :param algorithm: Algorithm for which to generate signing key

tox.ini

@@ -169,10 +169,12 @@ deps = {[testenv:flake8]deps}
 commands =
     flake8 examples/src/
     flake8 \
-        # Ingore D103 missing docstring errors in tests (test names should be self-documenting)
+        # Ignore D103 missing docstring errors in tests (test names should be self-documenting)
+        # Ignore D401 First line should be in imperative mood
+        # Ignoring D205, D400 because of false positives
         # E203 is not PEP8 compliant https://github.com/ambv/black#slices
         # W503 is not PEP8 compliant https://github.com/ambv/black#line-breaks--binary-operators
-        --ignore D103,E203,W503 \
+        --ignore D103,D401,D205,D400,E203,W503 \
         examples/test/
 
 [testenv:pylint]