From 4233008b4a3866c190d7ddc6d6ef5f098e348e33 Mon Sep 17 00:00:00 2001
From: Sebastian Rittau <srittau@rittau.biz>
Date: Fri, 7 Aug 2020 17:31:31 +0200
Subject: [PATCH] TypeVar(bound) accepts strings for forward references (#4410)

---
 stdlib/3/typing.pyi | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/stdlib/3/typing.pyi b/stdlib/3/typing.pyi
index 14c4a444a..d09e43f33 100644
--- a/stdlib/3/typing.pyi
+++ b/stdlib/3/typing.pyi
@@ -1,5 +1,3 @@
-# Stubs for typing
-
 import collections  # Needed by aliases like DefaultDict, see mypy issue 2986
 import sys
 from abc import ABCMeta, abstractmethod
@@ -21,7 +19,7 @@ class TypeVar:
         self,
         name: str,
         *constraints: Type[Any],
-        bound: Optional[Type[Any]] = ...,
+        bound: Union[None, Type[Any], str] = ...,
         covariant: bool = ...,
         contravariant: bool = ...,
     ) -> None: ...