1.1 --- a/lib/__builtins__/core.py	Sat Nov 19 18:17:54 2016 +0100
     1.2 +++ b/lib/__builtins__/core.py	Sat Nov 19 18:30:54 2016 +0100
     1.3 @@ -59,6 +59,7 @@
     1.4  
     1.5  class BaseException(object): pass
     1.6  class Exception(BaseException): pass
     1.7 +class UnboundMethodInvocation(Exception): pass
     1.8  class Warning(object): pass
     1.9  
    1.10  def get_using(callable, instance): pass