From f789ee25ad3a887bc8ba98eb0d8bfd0d96f3f0a5 Mon Sep 17 00:00:00 2001
From: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Date: Mon, 11 Jun 2018 14:02:17 -0700
Subject: [PATCH] make EnumMeta instantiable (#2118)

part of #1476. Verified that len(Enum) is still allowed by mypy.
---
 stdlib/3.4/enum.pyi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/stdlib/3.4/enum.pyi b/stdlib/3.4/enum.pyi
index 271126006..09b3d8aa6 100644
--- a/stdlib/3.4/enum.pyi
+++ b/stdlib/3.4/enum.pyi
@@ -11,13 +11,14 @@ _S = TypeVar('_S', bound=Type[Enum])
 # such as str as mixins, which due to the handling of ABCs of builtin types, cause
 # spurious inconsistent metaclass structure. See #1595.
 # Structurally: Iterable[T], Reversible[T], Container[T] where T is the enum itself
-class EnumMeta(ABCMeta, Sized):
+class EnumMeta(ABCMeta):
     def __iter__(self: Type[_T]) -> Iterator[_T]: ...
     def __reversed__(self: Type[_T]) -> Iterator[_T]: ...
     def __contains__(self: Type[_T], member: Any) -> bool: ...
     def __getitem__(self: Type[_T], name: str) -> _T: ...
     @property
     def __members__(self: Type[_T]) -> Mapping[str, _T]: ...
+    def __len__(self) -> int: ...
 
 class Enum(metaclass=EnumMeta):
     def __new__(cls: Type[_T], value: Any) -> _T: ...