fix flake8 findings

Author: Helene

source/queryHandler/QueryHandler.py

@@ -83,7 +83,7 @@ def __eq__(self, other):
         return (self.parent, self.sensor, self.identifier, self.metric) == (other.parent, other.sensor, other.identifier, other.metric)
 
     def __ne__(self, other):
-        return not(self == other)
+        return not (self == other)
 
 
 class ColumnInfo(NamedTuple):
@@ -132,7 +132,7 @@ def __eq__(self, other):
         return (self.name, self.keys) == (other.name, other.keys)
 
     def __ne__(self, other):
-        return not(self == other)
+        return not (self == other)
 
 
 class Domain(namedtuple('_domain', 'domainID, start, end, bucketSize')):
@@ -286,7 +286,7 @@ def reduce(self):
         return Row(ts, values, [1] * len(values))
 
     def check_rows_have_no_data(self):
-        return True if(len([r for r in self.rows if not r.is_empty()]) == 0) else False
+        return True if (len([r for r in self.rows if not r.is_empty()]) == 0) else False
 
     def latest(self, column):
         ''' get last non null value of a column'''

source/zimonGrafanaIntf.py

@@ -121,7 +121,7 @@ def update(self):
         self.logger.details(MSG['MetaSuccess'])
         self.logger.debug(MSG['ReceivAttrValues'].format('parents', ", ".join(self.metaData.allParents)))
         self.logger.debug(MSG['TimerInfo'].format('Metadata', str(tend - tstart)))
-        return({'msg': MSG['MetaSuccess']})
+        return ({'msg': MSG['MetaSuccess']})
 
 
 class GetHandler(object):
@@ -149,7 +149,7 @@ def __getSuggest(self, params):
         if params.get('q'):
             searchStr = params['q'].strip()
             # if '*' and tagv, then it denotes a grouping key value: do not process
-            if not(searchStr == '*' and params['type'] == 'tagv'):
+            if not (searchStr == '*' and params['type'] == 'tagv'):
                 # Since grafana sends the candidate string quickly, one character at a time, it
                 # is likely that the reg exp compilation will fail.
                 try: