Enable H902 collection membership evaluation

Change-Id: Ie6fd9f44f8a682397c7b34d4be69bb64351f7558

tox.ini

@@ -31,8 +31,7 @@ commands = python setup.py build_sphinx
 ## TODO(ruhe) following checks should be fixed
 # E721 do not compare types, use 'isinstance()'
 # H306 imports not in alphabetical order
-# H902 Use the 'not in' operator for collection membership evaluation
 show-source = True
-ignore = E123,E125,E721,H306,H404,H803,H902
+ignore = E123,E125,E721,H306,H404,H803
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build

yaql/functions/ns.py

@@ -33,7 +33,7 @@ class Namespace(object):
         self.symbols = symbols
 
     def validate(self, symbol):
-        if not symbol in self.symbols:
+        if symbol not in self.symbols:
             raise NamespaceValidationException(self.name, symbol)
 
 

yaql/language/context.py

@@ -48,9 +48,9 @@ class Context():
         if not name:
             name = func_def.function.func_name
 
-        if not name in self.functions:
+        if name not in self.functions:
             self.functions[name] = {}
-        if not num_params in self.functions[name]:
+        if num_params not in self.functions[name]:
             self.functions[name][num_params] = [func_def]
         else:
             self.functions[name][num_params].append(func_def)