From cd6e2b21042ea35fe14f5c1853760292130b3f54 Mon Sep 17 00:00:00 2001
From: Matti Picus <matti.picus@gmail.com>
Date: Sun, 6 Feb 2022 16:36:49 +0200
Subject: allow hashing memoryviews (issue 2756)

---
 lib_pypy/_hashlib/__init__.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib_pypy/_hashlib/__init__.py b/lib_pypy/_hashlib/__init__.py
index 070bcdba5c..ad5b76a301 100644
--- a/lib_pypy/_hashlib/__init__.py
+++ b/lib_pypy/_hashlib/__init__.py
@@ -10,6 +10,9 @@ except ImportError: builtinify = lambda f: f
 
 def new(name, string=b''):
     h = HASH(name)
+    if isinstance(string, memoryview):
+        # issue 2756: ffi.from_buffer() cannot handle memoryviews
+        string = string.tobytes()
     h.update(string)
     return h
 
-- 
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