From 6afa6101919df4a0cffc9c8868d8eedd8117526f Mon Sep 17 00:00:00 2001
From: Zac Hatfield-Dodds <Zac-HD@users.noreply.github.com>
Date: Tue, 11 Sep 2018 22:13:38 +1000
Subject: [PATCH] memoryview is a context manager (#2442)

Since Python 3.2, __enter__ returns self and __exit__ calls self.release()
---
 stdlib/3/builtins.pyi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/stdlib/3/builtins.pyi b/stdlib/3/builtins.pyi
index 78c598592..23fe1e8b4 100644
--- a/stdlib/3/builtins.pyi
+++ b/stdlib/3/builtins.pyi
@@ -495,6 +495,8 @@ class memoryview(Sized, Container[int]):
     ndim = ...  # type: int
 
     def __init__(self, obj: Union[bytes, bytearray, memoryview]) -> None: ...
+    def __enter__(self) -> memoryview: ...
+    def __exit__(self, exc_type: Optional[Type[BaseException]], exc_val: Optional[BaseException], exc_tb: Optional[TracebackType]) -> bool: ...
 
     @overload
     def __getitem__(self, i: int) -> int: ...