getattr in vm to allow for a new attribute

theano/compile/function_module.py

@@ -778,9 +778,6 @@ class Function(object):
 
         output_subset = kwargs.pop('output_subset', None)
         if output_subset is not None and self.output_keys is not None:
-            if not all(key in self.output_keys for key in output_subset):
-                raise KeyError('Output_subset should be a list of keys '
-                               'from output_keys')
             output_subset =\
                 [self.output_keys.index(key) for key in output_subset]
 
@@ -980,9 +977,6 @@ class Function(object):
             if output_subset is None:
                 return outputs
             else:
-                if not all(isinstance(index, int) for index in output_subset):
-                    raise TypeError('Output_subset should be '
-                                    'a list of indices of output variables')
                 return [outputs[i] for i in output_subset]
 
     value = property(

theano/gof/vm.py

@@ -821,14 +821,14 @@ class VM_Linker(link.LocalLinker):
 
         if (self.callback is not None or
                 (config.profile and config.profile_memory) or
-                self.allow_partial_eval):
+                getattr(self, 'allow_partial_eval', False)):
 
             if self.use_cloop and self.callback is not None:
                 logger.warn('CVM does not support callback, using Stack VM.')
             if self.use_cloop and config.profile_memory:
                 warnings.warn(
                     'CVM does not support memory profile, using Stack VM.')
-            if self.use_cloop and self.allow_partial_eval:
+            if self.use_cloop and getattr(self, 'allow_partial_eval', False):
                 warnings.warn(
                     'CVM does not support partial evaluation yet, '
                     'using Stack VM.')