diff --git a/jedi/evaluate/__init__.py b/jedi/evaluate/__init__.py
index d62fc7b7..789d5f02 100644
--- a/jedi/evaluate/__init__.py
+++ b/jedi/evaluate/__init__.py
@@ -184,7 +184,7 @@ class Evaluator(object):
         """
         if isinstance(atom, pr.Name):
             # This is the first global lookup.
-            stmt = atom.get_parent_until((pr.ExprStmt, pr.ReturnStmt))
+            stmt = atom.get_parent_until((pr.ExprStmt, pr.ReturnStmt, pr.Scope))
             return self.find_types(stmt.parent, atom, stmt.start_pos,
                                    search_global=True)
         elif isinstance(atom, pr.Literal):
diff --git a/jedi/evaluate/param.py b/jedi/evaluate/param.py
index 136d6b2c..ac5a43ad 100644
--- a/jedi/evaluate/param.py
+++ b/jedi/evaluate/param.py
@@ -21,8 +21,12 @@ class Arguments(object):
     def _split(self):
         if isinstance(self._argument_node, (tuple, list)):
             for el in self._argument_node:
-                yield 0
+                yield 0, el
         else:
+            if not pr.is_node(self._argument_node, 'arglist'):
+                yield 0, self._argument_node
+                return
+
             iterator = iter(self._argument_node.children)
             for child in iterator:
                 if child == ',':
diff --git a/jedi/evaluate/representation.py b/jedi/evaluate/representation.py
index f7f403c0..ef0a3c7f 100644
--- a/jedi/evaluate/representation.py
+++ b/jedi/evaluate/representation.py
@@ -29,6 +29,7 @@ __
 import copy
 import os
 import pkgutil
+from itertools import chain
 
 from jedi._compatibility import use_metaclass, unicode, Python3Method
 from jedi.parser import representation as pr
@@ -235,8 +236,7 @@ class Instance(use_metaclass(CachedMetaClass, Executed)):
         return getattr(self.base, name)
 
     def __repr__(self):
-        return "<e%s of %s (var_args: %s)>" % \
-            (type(self).__name__, self.base, len(self.var_args or []))
+        return "<e%s of %s %s>" % (type(self).__name__, self.base, self.var_args)
 
 
 def get_instance_el(evaluator, instance, var, is_class_var=False):
@@ -377,6 +377,10 @@ class Class(use_metaclass(CachedMetaClass, Wrapper)):
 
     @memoize_default(default=())
     def py__bases__(self, evaluator):
+        args = param.Arguments(self._evaluator, self.base.get_super_arglist() or ())
+        return list(chain.from_iterable(args.eval_args()))
+        
+        # TODO remove
         supers = []
         for s in self.base.supers:
             # Super classes are statements.
diff --git a/jedi/parser/representation.py b/jedi/parser/representation.py
index 7c0c37fd..c4d429ee 100644
--- a/jedi/parser/representation.py
+++ b/jedi/parser/representation.py
@@ -647,9 +647,11 @@ class Class(Scope):
         super(Class, self).__init__(children)
         self.decorators = []
 
-    @property
-    def supers(self):
-        raise NotImplementedError
+    def get_super_arglist(self):
+        if len(self.children) == 4:  # Has no parentheses
+            return None
+        else:
+            return self.children[3]
 
     @property
     def name(self):