Add pyflakes, picking up things that pep8 misses

libra/common/faults.py

@@ -12,7 +12,7 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-from json import dumps
+import json
 
 
 class ServiceFault(object):

libra/common/options.py

@@ -35,4 +35,4 @@ class Options(object):
 
     def _load_config(self):
         self.config = ConfigParser.ConfigParser()
-        config.readfp(self.args.config)
+        self.config.readfp(self.args.config)

libra/mgm/mgm.py

@@ -13,8 +13,6 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import logging
-import argparse
 import daemon
 import signal
 import sys

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,pep8
+envlist = py27,pep8,pyflakes
 
 [testenv]
 deps = -r{toxinidir}/tools/pip-requires
@@ -8,3 +8,7 @@ commands = py.test
 
 [testenv:pep8]
 commands = py.test --pep8 -k pep8 --clearcache
+
+[testenv:pyflakes]
+deps = pyflakes
+commands = pyflakes libra