diff --git a/jedi/evaluate/context/iterable.py b/jedi/evaluate/context/iterable.py
index 2bb3b33e..0f7fcf8b 100644
--- a/jedi/evaluate/context/iterable.py
+++ b/jedi/evaluate/context/iterable.py
@@ -303,7 +303,7 @@ class SequenceLiteralContext(ArrayMixin, AbstractIterable):
             for key, value in self._items():
                 for k in self._defining_context.eval_node(key):
                     if isinstance(k, compiled.CompiledObject) \
-                            and k.execute_operation(compiled_obj_index, '==').get_safe_value():
+                            and k.execute_operation(compiled_obj_index, u'==').get_safe_value():
                         return self._defining_context.eval_node(value)
             raise KeyError('No key found in dictionary %s.' % self)
 
diff --git a/jedi/evaluate/syntax_tree.py b/jedi/evaluate/syntax_tree.py
index 2ba237c9..bd70b2c2 100644
--- a/jedi/evaluate/syntax_tree.py
+++ b/jedi/evaluate/syntax_tree.py
@@ -477,7 +477,7 @@ def tree_name_to_contexts(evaluator, context, tree_name):
         types = _remove_statements(evaluator, context, node, tree_name)
     elif typ == 'with_stmt':
         context_managers = context.eval_node(node.get_test_node_from_name(tree_name))
-        enter_methods = context_managers.py__getattribute__('__enter__')
+        enter_methods = context_managers.py__getattribute__(u'__enter__')
         return enter_methods.execute_evaluated()
     elif typ in ('import_from', 'import_name'):
         types = imports.infer_import(context, tree_name)