few fixes

Author: Bhupesh-V

.travis.yml

@@ -14,6 +14,6 @@ script:
   - isort --check-only --recursive coderunner
   - black --check --diff coderunner
   - flake8 coderunner --max-line-length=88 --ignore=F401
-  - pylint coderunner --disable=bad-continuation,invalid-name,too-many-instance-attributes,too-many-arguments,attribute-defined-outside-init
+  - pylint coderunner --disable=bad-continuation,invalid-name,too-many-instance-attributes,too-many-arguments,attribute-defined-outside-init,no-self-use
 after_success:
   - codecov

coderunner/coderunner.py

@@ -59,8 +59,6 @@
 class ValueTooLargeError(Exception):
     """Raised when the input value is too large"""
 
-    pass
-
 
 class code:
     """