Fix pylint checks

Change-Id: I8140a0b474d6a06e372683523cb5918059a03ae5
Partial-Bug: #1696455

.pylintrc

@@ -44,7 +44,7 @@ symbols=no
 # --enable=similarities". If you want to run only the classes checker, but have
 # no Warning level messages displayed, use"--disable=all --enable=classes
 # --disable=W"
-disable=W,C,R,E1002
+disable=W,C,R,E1002,no-member
 
 
 [REPORTS]

freezer_api/tests/unit/common.py

@@ -427,10 +427,7 @@ class FakeReqResp(object):
 
 class FreezerBaseTestCase(testtools.TestCase):
     def setUp(self):
-        try:
-            super(FreezerBaseTestCase, self).setUp()
-        except Exception:
-            super().setUp()
+        super(FreezerBaseTestCase, self).setUp()
 
         self._config_fixture = self.useFixture(cfg_fixture.Config())
         config.parse_args(args=[])

requirements.txt

@@ -9,6 +9,7 @@ Paste # MIT
 PasteDeploy>=1.5.0 # MIT
 oslo.config>=4.0.0 # Apache-2.0
 oslo.context>=2.14.0 # Apache-2.0
+oslo.db>=4.21.1  # Apache-2.0
 oslo.i18n!=3.15.2,>=2.1.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0
 oslo.middleware>=3.27.0 # Apache-2.0

test-requirements.txt

@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 astroid<1.4.0 # LGPLv2.1 # breaks pylint 1.4.4
 flake8<2.6.0,>=2.5.4 # MIT
-pylint==1.4.5 # GPLv2
+pylint==1.7.1 # GPLv2
 hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 mock>=2.0 # BSD