From b41c6dafee363ef09e5de326b05f5cde8054db19 Mon Sep 17 00:00:00 2001
From: Elazar Gershuni <elazarg@gmail.com>
Date: Thu, 21 Dec 2017 23:32:10 +0200
Subject: [PATCH] Make Enum Iterable (etc.) only structurally (#1755)

Can't express the precise type nominally - see mypy#3210 for details

* Make self generic in __contains__
---
 stdlib/3.4/enum.pyi | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/stdlib/3.4/enum.pyi b/stdlib/3.4/enum.pyi
index 001f6e9f7..24f57d725 100644
--- a/stdlib/3.4/enum.pyi
+++ b/stdlib/3.4/enum.pyi
@@ -1,5 +1,5 @@
 import sys
-from typing import List, Any, TypeVar, Union, Iterable, Iterator, TypeVar, Generic, Type, Sized, Reversible, Container, Mapping
+from typing import List, Any, TypeVar, Union, Iterator, TypeVar, Generic, Type, Sized, Mapping
 from abc import ABCMeta
 
 _T = TypeVar('_T')
@@ -9,10 +9,11 @@ _S = TypeVar('_S', bound=Type[Enum])
 # This is a temporary workaround to allow multiple creation of enums with builtins
 # such as str as mixins, which due to the handling of ABCs of builtin types, cause
 # spurious inconsistent metaclass structure. See #1595.
-class EnumMeta(ABCMeta, Iterable[Enum], Sized, Reversible[Enum], Container[Enum]):
+# Structurally: Iterable[T], Reversible[T], Container[T] where T is the enum itself
+class EnumMeta(ABCMeta, Sized):
     def __iter__(self: Type[_T]) -> Iterator[_T]: ...
     def __reversed__(self: Type[_T]) -> Iterator[_T]: ...
-    def __contains__(self, member: Any) -> bool: ...
+    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]: ...