Use super for calling parent __init__ methods

common/lib/xmodule/xmodule/modulestore/mongo/base.py

@@ -256,7 +256,7 @@ class MongoModuleStore(ModuleStoreBase):
                  user=None, password=None, request_cache=None,
                  metadata_inheritance_cache_subsystem=None, **kwargs):
 
-        ModuleStoreBase.__init__(self)
+        super(MongoModuleStore, self).__init__()
 
         self.collection = pymongo.connection.Connection(
             host=host,

common/lib/xmodule/xmodule/modulestore/xml.py

@@ -265,7 +265,7 @@ class XMLModuleStore(ModuleStoreBase):
         course_dirs: If specified, the list of course_dirs to load. Otherwise,
             load all course dirs
         """
-        ModuleStoreBase.__init__(self)
+        super(XMLModuleStore, self).__init__()
 
         self.data_dir = path(data_dir)
         self.modules = defaultdict(dict)  # course_id -> dict(location -> XModuleDescriptor)

scripts/run_watch_data.py

@@ -25,7 +25,7 @@ WATCH_DIRS = [os.path.abspath(os.path.normpath(dir)) for dir in WATCH_DIRS]
 class DjangoEventHandler(FileSystemEventHandler):
 
     def __init__(self, process):
-        FileSystemEventHandler.__init__(self)
+        super(DjangoEventHandler, self).__init__()
 
         self.process = process