[test] Dev tox pylint (#247)

* add pylintrc

* add pylint for tox

* update pylint rules

pylintrc

@@ -0,0 +1,125 @@
+[MASTER]
+persistent=no
+jobs=1  # >1 hides results
+suggestion-mode=yes  # guess common misconfiguration and emit user-friendly hints
+py-version = 3.7.0
+
+[MESSAGES CONTROL]
+disable=abstract-method,
+        anomalous-backslash-in-string,
+        arguments-differ,
+        arguments-renamed,
+        attribute-defined-outside-init,
+        bad-classmethod-argument,
+        bad-continuation,
+        bad-indentation,
+        bad-mcs-classmethod-argument,
+        bad-super-call,
+        bad-whitespace,
+        bare-except,
+        blacklisted-name,
+        broad-except,
+        c-extension-no-member,
+        catching-non-exception,
+        cell-var-from-loop,
+        comparison-with-callable,
+        consider-iterating-dictionary,
+        consider-using-dict-items,
+        consider-using-from-import,
+        consider-using-in,
+        consider-using-set-comprehension,
+        consider-using-sys-exit,
+        consider-using-with,
+        cyclic-import,
+        dangerous-default-value,
+        deprecated-method,
+        deprecated-module,
+        duplicate-code,  # https://github.com/PyCQA/pylint/issues/214
+        eval-used,
+        expression-not-assigned,
+        fixme,
+        function-redefined,
+        global-statement,
+        import-error,
+        import-outside-toplevel,
+        import-self,
+        inconsistent-return-statements,
+        inherit-non-class,
+        invalid-name,
+        invalid-overridden-method,
+        isinstance-second-argument-not-valid-type,
+        keyword-arg-before-vararg,
+        line-too-long,
+        logging-format-interpolation,
+        logging-not-lazy,
+        lost-exception,
+        method-hidden,
+        misplaced-comparison-constant,
+        missing-docstring,
+        missing-final-newline,
+        multiple-imports,
+        multiple-statements,
+        no-else-continue,
+        no-else-raise,
+        no-else-return,
+        no-init,
+        no-member,
+        no-method-argument,
+        no-name-in-module,
+        no-self-argument,
+        no-self-use,
+        no-value-for-parameter,
+        not-an-iterable,
+        not-callable,
+        pointless-statement,
+        pointless-string-statement,
+        protected-access,
+        raise-missing-from,
+        redefined-argument-from-local,
+        redefined-builtin,
+        redefined-outer-name,
+        reimported,
+        signature-differs,
+        singleton-comparison,
+        super-init-not-called,
+        super-with-arguments,
+        superfluous-parens,
+        too-few-public-methods,
+        too-many-ancestors,
+        too-many-arguments,
+        too-many-branches,
+        too-many-format-args,
+        too-many-function-args,
+        too-many-instance-attributes,
+        too-many-lines,
+        too-many-locals,
+        too-many-public-methods,
+        too-many-return-statements,
+        trailing-newlines,
+        trailing-whitespace,
+        unbalanced-tuple-unpacking,
+        undefined-variable,
+        undefined-loop-variable,
+        unexpected-special-method-signature,
+        ungrouped-imports,
+        unidiomatic-typecheck,
+        unnecessary-comprehension,
+        unnecessary-lambda,
+        unnecessary-pass,
+        unreachable,
+        unspecified-encoding,
+        unsupported-assignment-operation,
+        unsubscriptable-object,
+        unused-argument,
+        unused-import,
+        unused-private-member,
+        unused-variable,
+        unused-wildcard-import,
+        use-implicit-booleaness-not-comparison,
+        used-before-assignment,
+        useless-object-inheritance,  # Required for Python 2 support
+        useless-return,
+        useless-super-delegation,
+        wildcard-import,
+        wrong-import-order,
+        wrong-import-position

tox.ini

@@ -30,19 +30,27 @@ commands =
     python -m pytest --ignore=setup.py # --cov-report term --cov=scrapy_redis
 
 [testenv:flake8]
+basepython=python3.8
 deps =
     {[base]deps}
     flake8 # https://github.com/tholo/pytest-flake8/issues/81
 commands =
     flake8 docs tests
 
 [testenv:security]
+basepython=python3.8
 deps =
     bandit==1.7.3
 commands =
     bandit -r -c .bandit.yml src/ tests/
 
-# TODO: add pylint
+[testenv:pylint]
+basepython=python3.8
+deps =
+    {[base]deps}
+    pylint==2.12.2
+commands =
+    pylint setup.py docs/ src/ tests/
 
 # TODO: build windows/linux/mac