Update Lib/hmac.py

picnixz · web-flow · commit df36d7d385a9 · 2025-07-21T19:09:54.000+02:00
diff --git a/Lib/hmac.py b/Lib/hmac.py
@@ -242,7 +242,7 @@ def digest(key, msg, digest):
         try:
             return _hashopenssl.hmac_digest(key, msg, digest)
         except OverflowError as exc:
-            if not isinstance(digest, str):
+            if _hmac is None or not isinstance(digest, str):
                 # Without re-raising now, slow HMAC will be used as
                 # HACL* HMAC only identifies digests by their name.
                 raise exc
