From f9135c5aa0d641fbda34ced2a0ece29317c49722 Mon Sep 17 00:00:00 2001
From: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Date: Mon, 9 Jan 2017 09:22:20 -0800
Subject: [PATCH] add __init_subclass__ to 3.6 (#813)

See also https://github.com/python/mypy/pull/2654
---
 stdlib/3/builtins.pyi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/stdlib/3/builtins.pyi b/stdlib/3/builtins.pyi
index 7081f5e0c..7000ad5f7 100644
--- a/stdlib/3/builtins.pyi
+++ b/stdlib/3/builtins.pyi
@@ -47,6 +47,9 @@ class object:
     def __getattribute__(self, name: str) -> Any: ...
     def __delattr__(self, name: str) -> None: ...
 
+    if sys.version_info >= (3, 6):
+        def __init_subclass__(cls) -> None: ...
+
 class type:
     __bases__ = ...  # type: Tuple[type, ...]
     __name__ = ...  # type: str