diff --git a/jedi/evaluate/compiled/__init__.py b/jedi/evaluate/compiled/__init__.py
index dda185eb..5cffab45 100644
--- a/jedi/evaluate/compiled/__init__.py
+++ b/jedi/evaluate/compiled/__init__.py
@@ -168,38 +168,6 @@ class CompiledObject(Base):
         else:
             raise KeyError("CompiledObject doesn't have an attribute '%s'." % name)
 
-    def get_index_types(self, evaluator, index_array=()):
-        # If the object doesn't have `__getitem__`, just raise the
-        # AttributeError.
-        raise NotImplementedError
-        if not hasattr(self.obj, '__getitem__'):
-            debug.warning('Tried to call __getitem__ on non-iterable.')
-            return set()
-        if type(self.obj) not in (str, list, tuple, unicode, bytes, bytearray, dict):
-            # Get rid of side effects, we won't call custom `__getitem__`s.
-            return set()
-
-        result = set()
-        from jedi.evaluate.iterable import create_indexes_or_slices
-        for typ in create_indexes_or_slices(evaluator, index_array):
-            index = None
-            try:
-                index = typ.obj
-                new = self.obj[index]
-            except (KeyError, IndexError, TypeError, AttributeError):
-                # Just try, we don't care if it fails, except for slices.
-                if isinstance(index, slice):
-                    result.add(self)
-            else:
-                result.add(CompiledObject(new))
-        if not result:
-            try:
-                for obj in self.obj:
-                    result.add(CompiledObject(obj))
-            except TypeError:
-                pass  # self.obj maynot have an __iter__ method.
-        return result
-
     @property
     def py__getitem__(self):
         if not hasattr(self.obj, '__getitem__'):
diff --git a/jedi/evaluate/iterable.py b/jedi/evaluate/iterable.py
index 2f99375c..4113f2eb 100644
--- a/jedi/evaluate/iterable.py
+++ b/jedi/evaluate/iterable.py
@@ -20,7 +20,7 @@ It is important to note that:
 1. Array modfications work only in the current module.
 2. Jedi only checks Array additions; ``list.pop``, etc are ignored.
 """
-from jedi.common import unite, ignored, safe_property
+from jedi.common import unite, safe_property
 from jedi import debug
 from jedi import settings
 from jedi._compatibility import use_metaclass, unicode, zip_longest
@@ -54,9 +54,6 @@ class GeneratorMixin(object):
     def py__bool__(self):
         return True
 
-    def get_index_types(self):
-        raise NotImplementedError
-
     def py__class__(self, evaluator):
         gen_obj = compiled.get_special_object(self._evaluator, 'GENERATOR_OBJECT')
         return gen_obj.py__class__(evaluator)
@@ -193,9 +190,6 @@ class ArrayMixin(object):
 class ListComprehension(Comprehension, ArrayMixin):
     type = 'list'
 
-    def get_index_types(self, evaluator, index):
-        raise NotImplementedError
-
     def py__getitem__(self, index):
         all_types = list(self.py__iter__())
         return all_types[index]
@@ -231,31 +225,6 @@ class Array(IterableWrapper, ArrayMixin):
     def name(self):
         return helpers.FakeName(self.type, parent=self)
 
-    @memoize_default()
-    def get_index_types(self, evaluator, index=()):
-        """
-        Get the types of a specific index or all, if not given.
-
-        :param index: A subscriptlist node (or subnode).
-        """
-        raise NotImplementedError
-        indexes = create_index_types(evaluator, index)
-        lookup_done = False
-        types = set()
-        for index in indexes:
-            if isinstance(index, Slice):
-                types.add(self)
-                lookup_done = True
-            elif isinstance(index, compiled.CompiledObject) \
-                    and isinstance(index.obj, (int, str, unicode)):
-                with ignored(KeyError, IndexError, TypeError):
-                    # TODO REMOVE the ignores. this should not be the case,
-                    # because it tends to swallow errors.
-                    types |= self.get_exact_index_types(index.obj)
-                    lookup_done = True
-
-        return types if lookup_done else self.values()
-
     @memoize_default()
     def values(self):
         result = unite(self._evaluator.eval_element(v) for v in self._values())
@@ -296,6 +265,7 @@ class Array(IterableWrapper, ArrayMixin):
             raise AttributeError('Strange access on %s: %s.' % (self, name))
         return getattr(self.atom, name)
 
+    # @memoize_default()
     def py__iter__(self):
         """
         While values returns the possible values for any array field, this