From 7c5d76aca048b0b8114ca4446655307b42ca1fa3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Anton=20Gr=C3=BCbel?= <anton.gruebel@gmail.com>
Date: Sat, 24 Jul 2021 22:42:11 +0200
Subject: [PATCH] add missing protocol version 5 in pickle (#5801)

---
 stdlib/pickle.pyi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/stdlib/pickle.pyi b/stdlib/pickle.pyi
index e9dc2c689..4183a0194 100644
--- a/stdlib/pickle.pyi
+++ b/stdlib/pickle.pyi
@@ -58,6 +58,7 @@ _reducedtype = Union[
 class Pickler:
     fast: bool
     dispatch_table: Mapping[type, Callable[[Any], _reducedtype]]
+    bin: bool  # undocumented
     dispatch: ClassVar[dict[type, Callable[[Unpickler, Any], None]]]  # undocumented, _Pickler only
 
     if sys.version_info >= (3, 8):
@@ -170,6 +171,12 @@ STACK_GLOBAL: bytes
 MEMOIZE: bytes
 FRAME: bytes
 
+if sys.version_info >= (3, 8):
+    # Protocol 5
+    BYTEARRAY8: bytes
+    NEXT_BUFFER: bytes
+    READONLY_BUFFER: bytes
+
 def encode_long(x: int) -> bytes: ...  # undocumented
 def decode_long(data: bytes) -> int: ...  # undocumented