[qa] isort and flake8

bob/extension/__init__.py

@@ -9,10 +9,10 @@
 import contextlib
 import logging
 
-import pkg_resources
-
 from copy import deepcopy
 
+import pkg_resources
+
 from .rc_config import _loadrc
 
 logger = logging.getLogger(__name__)

bob/extension/rc_config.py

@@ -3,14 +3,13 @@
 
 """Implements a global configuration system for bob using json."""
 
-import json
 import logging
 import os
 
-from exposed.rc import UserDefaults
-
 from warnings import warn
 
+from exposed.rc import UserDefaults
+
 logger = logging.getLogger(__name__)
 
 ENVNAME = "BOBRC"