Convert to using ABCMeta to get abstract class failures immediately rather than on method use.

volatility/framework/interfaces/renderers.py

@@ -1,18 +1,20 @@
+from abc import abstractmethod, ABCMeta
 from volatility.framework import validity
 
 __author__ = 'mike'
 
 class Renderer(validity.ValidityRoutines):
 
+    __metaclass__ = ABCMeta
+
     def __init__(self, options):
         """Accepts an options object to configure the renderers"""
         #FIXME: Once the config option objects are in place, put the type_check in place
 
-    @staticmethod
-    def get_render_options():
+    @abstractmethod
+    def get_render_options(self):
         """Returns a list of rendering options"""
-        raise NotImplementedError("Abstract method get_render_options not implemented.")
 
+    @abstractmethod
     def render(self, grid):
         """Takes a grid object and renders it based on the object's preferences"""
-        raise NotImplementedError("Abstract method render not implemented.")