Fix flake8 failures

[thopre]

Summary

A number of flake8 failures have cropped up in testsuitedb which this
commits fixes.

[cmatthews]

Looks good. thanks!

lnt/server/db/testsuitedb.py

def _importSampleValues(self, session, tests_data, run, config):
         # Load a map of all the tests, which we will extend when we find tests
         # that need to be added.
         # Downcast to str, so we match on MySQL.
         test_cache = dict((test.name, test)
                           for test in session.query(self.Test))
 
         field_dict = dict([(f.name, f) for f in self.sample_fields])
         all_samples_to_add = []
-        is_profile_only = lambda td : len(td) == 2 and 'profile' in td
+
+        def is_profile_only(td):
+            return len(td) == 2 and 'profile' in td
+
         for test_data in tests_data:
             if is_profile_only(test_data):
                 # Ignore for now profile data without other metrics
                 continue
 
             name = test_data['name']
             test = test_cache.get(name)
             if test is None:
def _importSampleValues(self, session, tests_data, run, config):
                     else:
                         sample.set_field(field, value)
 
         for test_data in tests_data:
             if not is_profile_only(test_data):
                 continue
             name = test_data['name']
             test = test_cache.get(name)
-            tests = [test_cache[test_name] for test_name in test_cache \
-                                           if test_name.startswith(name + '.test:')]
+            tests = [
+                test_cache[test_name]
+                for test_name in test_cache
+                if test_name.startswith(name + '.test:')
+            ]
             if test is not None:
                 tests.append(test)
 
             value = test_data['profile']
             new_profile = self.Profile(value, config, name)
             count = 0
             for test in tests:
                 sample_exist = False
                 for sample in all_samples_to_add:
                     if sample.test == test:
                         if sample.profile is None:
                             sample.profile = new_profile
                             count += 1
                             sample_exist = True
                         else:
-                            logger.warning('Test %s already contains the profile data. ' \
+                            logger.warning('Test %s already contains the profile data. '
                                            'Profile %s was ignored.', test.name, name)
                 if not sample_exist:
-                    logger.warning('The test %s is invalid. It contains the profile, ' \
+                    logger.warning('The test %s is invalid. It contains the profile, '
                                    'but no any samples. Consider removing it.', test.name)
             if count == 0:
                 logger.warning('Cannot find test(s) for the profile %s', name)
             else:
                 logger.info('The profile %s was added to %d test(s).', name, count)
 
         session.add_all(all_samples_to_add)