Indexing Enum type objects fails sometimes

[jboning]

Assume this definition of Color:

from enum import Enum
class Color(Enum):
    red = 1
    green = 2
    blue = 3

Color['red'] works, and 'val : Color = Color['red']both work, butval = Color['red']` does not work:

error: Name 'red' is not defined
error: "Color" expects no type arguments, but 1 given

Reference #741

[gvanrossum]

Whoops, yes, definitely a bug. Not sure yet how to fix it.