Update Pylint 2.0+ (#19)

This updates Pylint to 2.0+

Signed-off-by: David Brown <dmlb2000@gmail.com>

.pre-commit-config.yaml

@@ -1,10 +1,10 @@
 repos:
 -   repo: https://github.com/pre-commit/mirrors-autopep8
-    rev: v1.4.4
+    rev: v1.5
     hooks:
             -   id: autopep8
 -   repo: git://github.com/pre-commit/pre-commit-hooks
-    rev: v2.2.3
+    rev: v2.4.0
     hooks:
             -   id: fix-encoding-pragma
             -   id: trailing-whitespace
@@ -50,7 +50,7 @@ repos:
                 language: system
                 types: [python]
 -   repo: git://github.com/Lucas-C/pre-commit-hooks
-    rev: v1.1.6
+    rev: v1.1.7
     hooks:
     -   id: remove-tabs
     -   id: remove-crlf

pacifica/downloader/cartapi.py

@@ -81,7 +81,7 @@ def setup_cart(self, yield_files):
         resp = self.session.post(
             cart_url,
             data=dumps({
-                'fileids': [file_obj for file_obj in yield_files()]
+                'fileids': list(yield_files())
             }),
             headers={'Content-Type': 'application/json'},
             **self._auth

pacifica/downloader/cloudevent.py

@@ -4,7 +4,7 @@
 
 
 # pylint: disable=too-few-public-methods
-class CloudEvent(object):
+class CloudEvent:
     """Cloud Event Parser."""
 
     @staticmethod

pacifica/downloader/common/__init__.py

@@ -6,7 +6,7 @@
 
 
 # pylint: disable=too-few-public-methods
-class CommonBase(object):
+class CommonBase:
     """Contains methods to implement common functionality."""
 
     session = None

pacifica/downloader/downloader.py

@@ -8,7 +8,7 @@
 from .policy import TransactionInfo
 
 
-class Downloader(object):
+class Downloader:
     """
     Downloader Class.
 

pacifica/downloader/policy.py

@@ -4,7 +4,7 @@
 
 
 # pylint: disable=too-few-public-methods
-class TransactionInfo(object):
+class TransactionInfo:
     """Cloud Event Parser."""
 
     @staticmethod

requirements-dev.txt

@@ -5,6 +5,6 @@ pacifica-metadata
 pacifica-policy
 pep257
 pre-commit
-pylint<2.0
+pylint
 pytest
 recommonmark