From 32a2ceead7ad86c1641f24b710c4d4683c1e98f3 Mon Sep 17 00:00:00 2001
From: Christian Heimes <christian@python.org>
Date: Wed, 7 Sep 2016 02:35:13 +0200
Subject: Bypass __get_openssl_constructor() and always use our own blake2
 implementation

---
 Lib/hashlib.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Lib/hashlib.py b/Lib/hashlib.py
index 40ccdec..2d5e92e 100644
--- a/Lib/hashlib.py
+++ b/Lib/hashlib.py
@@ -101,6 +101,9 @@ def __get_builtin_constructor(name):
 
 
 def __get_openssl_constructor(name):
+    if name in {'blake2b', 'blake2s'}:
+        # Prefer our blake2 implementation.
+        return __get_builtin_constructor(name)
     try:
         f = getattr(_hashlib, 'openssl_' + name)
         # Allow the C module to raise ValueError.  The function will be
-- 
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