Created a method that emulates isinsntace for aggregation

bob/pipelines/utils.py

@@ -189,7 +189,7 @@ def vstack_features(reader, paths, same_size=False, dtype=None):
     return np.reshape(all_features, shape, order="C")
 
 
-def isinstance_nested(instance, method, isinstance_of):
+def isinstance_nested(instance, attribute, isinstance_of):
     """
     Check if an object and its nested objects is an instance of a class.
 
@@ -201,20 +201,20 @@ def isinstance_nested(instance, method, isinstance_of):
         instance:
            Object to be searched
 
-        method:
-           Method name
+        attribute:
+           Attribute name to be recursively searched
 
         isinstance_of:
             Instance class to be searched
 
     """
 
-    if method not in instance.__dict__:
+    if not hasattr(instance, attribute):
         return False
 
     # Checking the current object and its immediate nested
-    if isinstance(instance,isinstance_of) or isinstance(instance.__dict__[method],isinstance_of):
+    if isinstance(instance,isinstance_of) or isinstance(getattr(instance, attribute), isinstance_of):
         return True
     else:
         # Recursive search
-        return isinstance_nested(instance.__dict__[method], method, isinstance_of)
+        return isinstance_nested(getattr(instance, attribute), attribute, isinstance_of)